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network-throughput/tuned.conf 0000644 00000000763 15033054174 0012442 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for streaming network throughput, generally only necessary on older CPUs or 40G+ networks
include=throughput-performance
[sysctl]
# Increase kernel buffer size maximums. Currently this seems only necessary at 40Gb speeds.
#
# The buffer tuning values below do not account for any potential hugepage allocation.
# Ensure that you do not oversubscribe system memory.
net.ipv4.tcp_rmem="4096 131072 16777216"
net.ipv4.tcp_wmem="4096 16384 16777216"
latency-performance/tuned.conf 0000644 00000003170 15033054174 0012473 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for deterministic performance at the cost of increased power consumption
[cpu]
force_latency=cstate.id_no_zero:1|3
governor=performance
energy_perf_bias=performance
min_perf_pct=100
[acpi]
platform_profile=performance
[sysctl]
# If a workload mostly uses anonymous memory and it hits this limit, the entire
# working set is buffered for I/O, and any more write buffering would require
# swapping, so it's time to throttle writes until I/O can catch up. Workloads
# that mostly use file mappings may be able to use even higher values.
#
# The generator of dirty data starts writeback at this percentage (system default
# is 20%)
vm.dirty_ratio=10
# Start background writeback (via writeback threads) at this percentage (system
# default is 10%)
vm.dirty_background_ratio=3
# The swappiness parameter controls the tendency of the kernel to move
# processes out of physical memory and onto the swap disk.
# 0 tells the kernel to avoid swapping processes out of physical memory
# for as long as possible
# 100 tells the kernel to aggressively swap processes out of physical memory
# and move them to swap cache
vm.swappiness=10
[scheduler]
runtime=0
# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
#
# Minimal preemption granularity for CPU-bound tasks:
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
sched_min_granularity_ns = 3000000
sched_wakeup_granularity_ns = 4000000
# The total time the scheduler will consider a migrated process
# "cache hot" and thus less likely to be re-migrated
# (system default is 500000, i.e. 0.5 ms)
sched_migration_cost_ns = 5000000
balanced/tuned.conf 0000644 00000000711 15033054174 0010264 0 ustar 00 #
# tuned configuration
#
[main]
summary=General non-specialized tuned profile
[modules]
cpufreq_conservative=+r
[cpu]
priority=10
governor=conservative|powersave
energy_perf_bias=normal
energy_performance_preference=balance_performance
[acpi]
platform_profile=balanced
[audio]
timeout=10
[video]
radeon_powersave=dpm-balanced, auto
[disk]
# Comma separated list of devices, all devices if commented out.
# devices=sda
[scsi_host]
alpm=medium_power
recommend.d/50-tuned.conf 0000644 00000003551 15033054174 0011155 0 ustar 00 # Tuned rules for recommend_profile.
#
# Syntax:
# [PROFILE1]
# KEYWORD11=RE11
# KEYWORD21=RE12
#
# [PROFILE2]
# KEYWORD21=RE21
# KEYWORD22=RE22
# KEYWORD can be:
# virt - for RE to match output of virt-what
# system - for RE to match content of /etc/system-release-cpe
# process - for RE to match running processes. It can have arbitrary
# suffix, all process* lines have to match for the PROFILE
# to match (i.e. the AND operator)
# /FILE - for RE to match content of the FILE, e.g.:
# '/etc/passwd=.+'. If file doesn't exist, its RE will not
# match.
# chassis_type - for RE to match the chassis type as reported by dmidecode
# syspurpose_role - for RE to match the system role as reported by syspurpose
# All REs for all KEYWORDs have to match for PROFILE to match (i.e. the AND operator).
# If 'virt' or 'system' is not specified, it matches for every string.
# If 'virt' or 'system' is empty, i.e. 'virt=', it matches only empty string (alias for '^$').
# If several profiles matched, the first match is taken.
#
# Limitation:
# Each profile can be specified only once, because there cannot be
# multiple sections in the configuration file with the same name
# (ConfigObj limitation).
# If there is a need to specify the profile multiple times, unique
# suffix like ',ANYSTRING' can be used. Everything after the last ','
# is stripped by the parser, e.g.:
#
# [balanced,1]
# /FILE1=RE1
#
# [balanced,2]
# /FILE2=RE2
#
# This will set 'balanced' profile in case there is FILE1 matching RE1 or
# FILE2 matching RE2 or both.
[atomic-host]
virt=
syspurpose_role=.*atomic.*
[atomic-guest]
virt=.+
syspurpose_role=.*atomic.*
[virtual-guest]
virt=.+
[balanced]
syspurpose_role=(.*(desktop|workstation).*)|^$
chassis_type=.*(Notebook|Laptop|Portable).*
[throughput-performance]
optimize-serial-console/tuned.conf 0000644 00000000357 15033054174 0013316 0 ustar 00 #
# tuned configuration
#
# This tuned configuration optimizes for serial console performance at the
# expense of reduced debug information to the console.
[main]
summary=Optimize for serial console use.
[sysctl]
kernel.printk="4 4 1 7"
powersave/tuned.conf 0000644 00000001172 15033054174 0010550 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for low power consumption
[cpu]
governor=ondemand|powersave
energy_perf_bias=powersave|power
energy_performance_preference=power
[acpi]
platform_profile=low-power|quiet
[eeepc_she]
[vm]
[audio]
timeout=10
[video]
radeon_powersave=dpm-battery, auto
[disk]
# Comma separated list of devices, all devices if commented out.
# devices=sda
[net]
# Comma separated list of devices, all devices if commented out.
# devices=eth0
[scsi_host]
alpm=min_power
[sysctl]
vm.laptop_mode=5
vm.dirty_writeback_centisecs=1500
kernel.nmi_watchdog=0
[script]
script=${i:PROFILE_DIR}/script.sh
powersave/script.sh 0000755 00000000417 15033054174 0010426 0 ustar 00 #!/bin/bash
. /usr/lib/tuned/functions
start() {
[ "$USB_AUTOSUSPEND" = 1 ] && enable_usb_autosuspend
enable_wifi_powersave
return 0
}
stop() {
[ "$USB_AUTOSUSPEND" = 1 ] && disable_usb_autosuspend
disable_wifi_powersave
return 0
}
process $@
hpc-compute/tuned.conf 0000644 00000002560 15033054174 0010763 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for HPC compute workloads
description=Configures virtual memory, CPU governors, and network settings for HPC compute workloads.
include=latency-performance
[vm]
# Most HPC application can take advantage of hugepages. Force them to on.
transparent_hugepages=always
[disk]
# Increase the readahead value to support large, contiguous, files.
readahead=>4096
[sysctl]
# Keep a reasonable amount of memory free to support large mem requests
vm.min_free_kbytes=135168
# Most HPC applications are NUMA aware. Enabling zone reclaim ensures
# memory is reclaimed and reallocated from local pages. Disabling
# automatic NUMA balancing prevents unwanted memory unmapping.
vm.zone_reclaim_mode=1
kernel.numa_balancing=0
# Busy polling helps reduce latency in the network receive path
# by allowing socket layer code to poll the receive queue of a
# network device, and disabling network interrupts.
# busy_read value greater than 0 enables busy polling. Recommended
# net.core.busy_read value is 50.
# busy_poll value greater than 0 enables polling globally.
# Recommended net.core.busy_poll value is 50
net.core.busy_read=50
net.core.busy_poll=50
# TCP fast open reduces network latency by enabling data exchange
# during the sender's initial TCP SYN. The value 3 enables fast open
# on client and server connections.
net.ipv4.tcp_fastopen=3
virtual-guest/tuned.conf 0000644 00000001355 15033054174 0011353 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for running inside a virtual guest
include=throughput-performance
[sysctl]
# If a workload mostly uses anonymous memory and it hits this limit, the entire
# working set is buffered for I/O, and any more write buffering would require
# swapping, so it's time to throttle writes until I/O can catch up. Workloads
# that mostly use file mappings may be able to use even higher values.
#
# The generator of dirty data starts writeback at this percentage (system default
# is 20%)
vm.dirty_ratio = 30
# Filesystem I/O is usually much more efficient than swapping, so try to keep
# swapping low. It's usually safe to go even lower than this on systems with
# server-grade storage.
vm.swappiness = 30
functions 0000644 00000036164 15033054174 0006513 0 ustar 00 #
# This is library of helper functions that can be used in scripts in tuned profiles.
#
# API provided by this library is under heavy development and could be changed anytime
#
#
# Config
#
STORAGE=/run/tuned
STORAGE_PERSISTENT=/var/lib/tuned
STORAGE_SUFFIX=".save"
#
# Helpers
#
# Save value
# $0 STORAGE_NAME VALUE
save_value() {
[ "$#" -ne 2 ] && return
[ "$2" -a -e "${STORAGE}" ] && echo "$2" > "${STORAGE}/${1}${STORAGE_SUFFIX}"
}
# Parse sysfs value, i.e. for "val1 [val2] val3" return "val2"
# $0 SYSFS_NAME
parse_sys() {
local V1 V2
[ -r "$1" ] || return
V1=`cat "$1"`
V2="${V1##*[}"
V2="${V2%%]*}"
echo "${V2:-$V1}"
}
# Save sysfs value
# $0 STORAGE_NAME SYSFS_NAME
save_sys() {
[ "$#" -ne 2 ] && return
[ -r "$2" -a ! -e "${STORAGE}/${1}${STORAGE_SUFFIX}" ] && parse_sys "$2" > "${STORAGE}/${1}${STORAGE_SUFFIX}"
}
# Set sysfs value
# $0 SYSFS_NAME VALUE
set_sys() {
[ "$#" -ne 2 ] && return
[ -w "$1" ] && echo "$2" > "$1"
}
# Save and set sysfs value
# $0 STORAGE_NAME SYSFS_NAME VALUE
save_set_sys() {
[ "$#" -ne 3 ] && return
save_sys "$1" "$2"
set_sys "$2" "$3"
}
# Get stored sysfs value from storage
# $0 STORAGE_NAME
get_stored_sys() {
[ "$#" -ne 1 ] && return
[ -r "${STORAGE}/${1}${STORAGE_SUFFIX}" ] && cat "${STORAGE}/${1}${STORAGE_SUFFIX}"
}
# Restore value from storage
# $0 STORAGE_NAME
restore_value() {
[ "$#" -ne 1 ] && return
_rs_value="`get_stored_sys \"$1\"`"
unlink "${STORAGE}/${1}${STORAGE_SUFFIX}" >/dev/null 2>&1
[ "$_rs_value" ] && echo "$_rs_value"
}
# Restore sysfs value from storage, if nothing is stored, use VALUE
# $0 STORAGE_NAME SYSFS_NAME [VALUE]
restore_sys() {
[ "$#" -lt 2 -o "$#" -gt 3 ] && return
_rs_value="`get_stored_sys \"$1\"`"
unlink "${STORAGE}/${1}${STORAGE_SUFFIX}" >/dev/null 2>&1
[ "$_rs_value" ] || _rs_value="$3"
[ "$_rs_value" ] && set_sys "$2" "$_rs_value"
}
#
# DISK tuning
#
DISKS_DEV="$(command ls -d1 /dev/[shv]d*[a-z] 2>/dev/null)"
DISKS_SYS="$(command ls -d1 /sys/block/{sd,cciss,dm-,vd,dasd,xvd}* 2>/dev/null)"
_check_elevator_override()
{
/bin/fgrep -q 'elevator=' /proc/cmdline
}
# $0 OPERATOR DEVICES ELEVATOR
_set_elevator_helper() {
_check_elevator_override && return
SYS_BLOCK_SDX=""
[ "$2" ] && SYS_BLOCK_SDX=$(eval LANG=C /bin/ls -1 "${2}" 2>/dev/null)
# if there is no kernel command line elevator settings, apply the elevator
if [ "$1" -a "$SYS_BLOCK_SDX" ]; then
for i in $SYS_BLOCK_SDX; do
se_dev="`echo \"$i\" | sed 's|/sys/block/\([^/]\+\)/queue/scheduler|\1|'`"
$1 "elevator_${se_dev}" "$i" "$3"
done
fi
}
# $0 DEVICES ELEVATOR
set_elevator() {
_set_elevator_helper save_set_sys "$1" "$2"
}
# $0 DEVICES [ELEVATOR]
restore_elevator() {
re_elevator="$2"
[ "$re_elevator" ] || re_elevator=cfq
_set_elevator_helper restore_sys "$1" "$re_elevator"
}
# SATA Aggressive Link Power Management
# usage: set_disk_alpm policy
set_disk_alpm() {
policy=$1
for host in /sys/class/scsi_host/*; do
if [ -f $host/ahci_port_cmd ]; then
port_cmd=`cat $host/ahci_port_cmd`;
if [ $((0x$port_cmd & 0x240000)) = 0 -a -f $host/link_power_management_policy ]; then
echo $policy >$host/link_power_management_policy;
else
echo "max_performance" >$host/link_power_management_policy;
fi
fi
done
}
# usage: set_disk_apm level
set_disk_apm() {
level=$1
for disk in $DISKS_DEV; do
hdparm -B $level $disk &>/dev/null
done
}
# usage: set_disk_spindown level
set_disk_spindown() {
level=$1
for disk in $DISKS_DEV; do
hdparm -S $level $disk &>/dev/null
done
}
# usage: multiply_disk_readahead by
multiply_disk_readahead() {
by=$1
# float multiplication not supported in bash
# bc might not be installed, python is available for sure
for disk in $DISKS_SYS; do
control="${disk}/queue/read_ahead_kb"
old=$(cat $control)
new=$(echo "print int($old*$by)" | python)
(echo $new > $control) &>/dev/null
done
}
# usage: remount_disk options partition1 partition2 ...
remount_partitions() {
options=$1
shift
for partition in $@; do
mount -o remount,$options $partition >/dev/null 2>&1
done
}
remount_all_no_rootboot_partitions() {
[ "$1" ] || return
# Find non-root and non-boot partitions, disable barriers on them
rootvol=$(df -h / | grep "^/dev" | awk '{print $1}')
bootvol=$(df -h /boot | grep "^/dev" | awk '{print $1}')
volumes=$(df -hl --exclude=tmpfs | grep "^/dev" | awk '{print $1}')
nobarriervols=$(echo "$volumes" | grep -v $rootvol | grep -v $bootvol)
remount_partitions "$1" $nobarriervols
}
DISK_QUANTUM_SAVE="${STORAGE}/disk_quantum${STORAGE_SUFFIX}"
set_disk_scheduler_quantum() {
value=$1
rm -f "$DISK_QUANTUM_SAVE"
for disk in $DISKS_SYS; do
control="${disk}/queue/iosched/quantum"
echo "echo $(cat $control) > $control" >> "$DISK_QUANTUM_SAVE" 2>/dev/null
(echo $value > $control) &2>/dev/null
done
}
restore_disk_scheduler_quantum() {
if [ -r "$DISK_QUANTUM_SAVE" ]; then
/bin/bash "$DISK_QUANTUM_SAVE" &>/dev/null
rm -f "$DISK_QUANTUM_SAVE"
fi
}
#
# CPU tuning
#
CPUSPEED_SAVE_FILE="${STORAGE}/cpuspeed${STORAGE_SUFFIX}"
CPUSPEED_ORIG_GOV="${STORAGE}/cpuspeed-governor-%s${STORAGE_SUFFIX}"
CPUSPEED_STARTED="${STORAGE}/cpuspeed-started"
CPUSPEED_CFG="/etc/sysconfig/cpuspeed"
CPUSPEED_INIT="/etc/rc.d/init.d/cpuspeed"
# do not use cpuspeed
CPUSPEED_USE="0"
CPUS="$(ls -d1 /sys/devices/system/cpu/cpu* | sed 's;^.*/;;' | grep "cpu[0-9]\+")"
# set CPU governor setting and store the old settings
# usage: set_cpu_governor governor
set_cpu_governor() {
governor=$1
# always patch cpuspeed configuration if exists, if it doesn't exist and is enabled,
# explicitly disable it with hint
if [ -e $CPUSPEED_INIT ]; then
if [ ! -e $CPUSPEED_SAVE_FILE -a -e $CPUSPEED_CFG ]; then
cp -p $CPUSPEED_CFG $CPUSPEED_SAVE_FILE
sed -e 's/^GOVERNOR=.*/GOVERNOR='$governor'/g' $CPUSPEED_SAVE_FILE > $CPUSPEED_CFG
fi
else
if [ "$CPUSPEED_USE" = "1" ]; then
echo >&2
echo "Suggestion: install 'cpuspeed' package to get best tuning results." >&2
echo "Falling back to sysfs control." >&2
echo >&2
fi
CPUSPEED_USE="0"
fi
if [ "$CPUSPEED_USE" = "1" ]; then
service cpuspeed status &> /dev/null
[ $? -eq 3 ] && touch $CPUSPEED_STARTED || rm -f $CPUSPEED_STARTED
service cpuspeed restart &> /dev/null
# direct change using sysfs
elif [ -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then
for cpu in $CPUS; do
gov_file=/sys/devices/system/cpu/$cpu/cpufreq/scaling_governor
save_file=$(printf $CPUSPEED_ORIG_GOV $cpu)
rm -f $save_file
if [ -e $gov_file ]; then
cat $gov_file > $save_file
echo $governor > $gov_file
fi
done
fi
}
# re-enable previous CPU governor settings
# usage: restore_cpu_governor
restore_cpu_governor() {
if [ -e $CPUSPEED_INIT ]; then
if [ -e $CPUSPEED_SAVE_FILE ]; then
cp -fp $CPUSPEED_SAVE_FILE $CPUSPEED_CFG
rm -f $CPUSPEED_SAVE_FILE
fi
if [ "$CPUSPEED_USE" = "1" ]; then
if [ -e $CPUSPEED_STARTED ]; then
service cpuspeed stop &> /dev/null
else
service cpuspeed restart &> /dev/null
fi
fi
if [ -e $CPUSPEED_STARTED ]; then
rm -f $CPUSPEED_STARTED
fi
else
CPUSPEED_USE="0"
fi
if [ "$CPUSPEED_USE" != "1" -a -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then
for cpu in $CPUS; do
cpufreq_dir=/sys/devices/system/cpu/$cpu/cpufreq
save_file=$(printf $CPUSPEED_ORIG_GOV $cpu)
if [ -e $cpufreq_dir/scaling_governor ]; then
if [ -e $save_file ]; then
cat $save_file > $cpufreq_dir/scaling_governor
rm -f $save_file
else
echo userspace > $cpufreq_dir/scaling_governor
cat $cpufreq_dir/cpuinfo_max_freq > $cpufreq_dir/scaling_setspeed
fi
fi
done
fi
}
_cpu_multicore_powersave() {
value=$1
[ -e /sys/devices/system/cpu/sched_mc_power_savings ] && echo $value > /sys/devices/system/cpu/sched_mc_power_savings
}
# enable multi core power savings for low wakeup systems
enable_cpu_multicore_powersave() {
_cpu_multicore_powersave 1
}
disable_cpu_multicore_powersave() {
_cpu_multicore_powersave 0
}
#
# MEMORY tuning
#
THP_ENABLE="/sys/kernel/mm/transparent_hugepage/enabled"
THP_SAVE="${STORAGE}/thp${STORAGE_SUFFIX}"
[ -e "$THP_ENABLE" ] || THP_ENABLE="/sys/kernel/mm/redhat_transparent_hugepage/enabled"
enable_transparent_hugepages() {
if [ -e $THP_ENABLE ]; then
cut -f2 -d'[' $THP_ENABLE | cut -f1 -d']' > $THP_SAVE
(echo always > $THP_ENABLE) &> /dev/null
fi
}
restore_transparent_hugepages() {
if [ -e $THP_SAVE ]; then
(echo $(cat $THP_SAVE) > $THP_ENABLE) &> /dev/null
rm -f $THP_SAVE
fi
}
#
# WIFI tuning
#
# usage: _wifi_set_power_level level
_wifi_set_power_level() {
# 0 auto, PM enabled
# 1-5 least savings and lowest latency - most savings and highest latency
# 6 disable power savings
level=$1
# do not report errors on systems with no wireless
[ -e /proc/net/wireless ] || return 0
# apply the settings using iwpriv
ifaces=$(cat /proc/net/wireless | grep -v '|' | sed 's@^ *\([^:]*\):.*@\1@')
for iface in $ifaces; do
iwpriv $iface set_power $level
done
# some adapters may rely on sysfs
for i in /sys/bus/pci/devices/*/power_level; do
(echo $level > $i) &> /dev/null
done
}
enable_wifi_powersave() {
_wifi_set_power_level 5
}
disable_wifi_powersave() {
_wifi_set_power_level 0
}
#
# BLUETOOTH tuning
#
disable_bluetooth() {
hciconfig hci0 down >/dev/null 2>&1
lsmod | grep -q btusb && rmmod btusb
}
enable_bluetooth() {
modprobe btusb
hciconfig hci0 up >/dev/null 2>&1
}
#
# USB tuning
#
_usb_autosuspend() {
value=$1
for i in /sys/bus/usb/devices/*/power/autosuspend; do echo $value > $i; done &> /dev/null
}
enable_usb_autosuspend() {
_usb_autosuspend 1
}
disable_usb_autosuspend() {
_usb_autosuspend 0
}
#
# SOUND CARDS tuning
#
enable_snd_ac97_powersave() {
save_set_sys ac97 /sys/module/snd_ac97_codec/parameters/power_save Y
}
disable_snd_ac97_powersave() {
save_set_sys ac97 /sys/module/snd_ac97_codec/parameters/power_save N
}
restore_snd_ac97_powersave() {
restore_sys ac97 /sys/module/snd_ac97_codec/parameters/power_save $1
}
set_hda_intel_powersave() {
save_set_sys hda_intel /sys/module/snd_hda_intel/parameters/power_save $1
}
restore_hda_intel_powersave() {
restore_sys hda_intel /sys/module/snd_hda_intel/parameters/power_save $1
}
#
# VIDEO CARDS tuning
#
# Power savings settings for Radeon
# usage: set_radeon_powersave dynpm | default | low | mid | high
set_radeon_powersave () {
[ "$1" ] || return
[ -e /sys/class/drm/card0/device/power_method ] || return
if [ "$1" = default -o "$1" = auto -o "$1" = low -o "$1" = med -o "$1" = high ]; then
[ -w /sys/class/drm/card0/device/power_profile ] || return
save_sys radeon_profile /sys/class/drm/card0/device/power_profile
save_set_sys radeon_method /sys/class/drm/card0/device/power_method profile
set_sys /sys/class/drm/card0/device/power_profile "$1"
elif [ "$1" = dynpm ]; then
save_sys radeon_profile /sys/class/drm/card0/device/power_profile
save_set_sys radeon_method /sys/class/drm/card0/device/power_method dynpm
fi
}
restore_radeon_powersave () {
restore_sys radeon_method /sys/class/drm/card0/device/power_method profile
_rrp_method="`get_stored_sys radeon_method`"
[ -z "$_rrp_method" -o _rrp_method="profile" ] && restore_sys radeon_profile /sys/class/drm/card0/device/power_profile default
}
#
# SOFTWARE tuning
#
RSYSLOG_CFG="/etc/rsyslog.conf"
RSYSLOG_SAVE="${STORAGE}/cpuspeed${STORAGE_SUFFIX}"
disable_logs_syncing() {
cp -p $RSYSLOG_CFG $RSYSLOG_SAVE
sed -i 's/ \/var\/log/-\/var\/log/' $RSYSLOG_CFG
}
restore_logs_syncing() {
mv -Z $RSYSLOG_SAVE $RSYSLOG_CFG || mv $RSYSLOG_SAVE $RSYSLOG_CFG
}
irqbalance_banned_cpus_clear() {
sed -i '/^IRQBALANCE_BANNED_CPUS=/d' /etc/sysconfig/irqbalance || return
if [ ${1:-restart} = restart ]; then
systemctl try-restart irqbalance
fi
}
irqbalance_banned_cpus_setup() {
irqbalance_banned_cpus_clear norestart
if [ -n "$1" ]; then
echo "IRQBALANCE_BANNED_CPUS=$1" >> /etc/sysconfig/irqbalance
fi
systemctl try-restart irqbalance
}
#
# HARDWARE SPECIFIC tuning
#
# Asus EEE with Intel Atom
_eee_fsb_control() {
value=$1
if [ -e /sys/devices/platform/eeepc/she ]; then
echo $value > /sys/devices/platform/eeepc/she
elif [ -e /sys/devices/platform/eeepc/cpufv ]; then
echo $value > /sys/devices/platform/eeepc/cpufv
elif [ -e /sys/devices/platform/eeepc-wmi/cpufv ]; then
echo $value > /sys/devices/platform/eeepc-wmi/cpufv
fi
}
eee_set_reduced_fsb() {
_eee_fsb_control 2
}
eee_set_normal_fsb() {
_eee_fsb_control 1
}
#
# modprobe configuration handling
#
kvm_modprobe_file=/etc/modprobe.d/kvm.rt.tuned.conf
teardown_kvm_mod_low_latency()
{
rm -f $kvm_modprobe_file
}
setup_kvm_mod_low_latency()
{
local HAS_KPS=""
local HAS_NX_HP=""
local HAS_PLE_GAP=""
local WANTS_KPS=""
local WANTS_NX_HP=""
local WANTS_PLE_GAP=""
modinfo -p kvm | grep -q kvmclock_periodic_sync && HAS_KPS=1
modinfo -p kvm | grep -q nx_huge_pages && HAS_NX_HP=1
modinfo -p kvm_intel | grep -q ple_gap && HAS_PLE_GAP=1
grep -qs kvmclock_periodic_sync "$kvm_modprobe_file" && WANTS_KPS=1
grep -qs nx_huge_pages "$kvm_modprobe_file" && WANTS_NX_HP=1
grep -qs ple_gap "$kvm_modprobe_file" && WANTS_PLE_GAP=1
if [ "$HAS_KPS" != "$WANTS_KPS" -o "$HAS_PLE_GAP" != "$WANTS_PLE_GAP" -o \
"$HAS_NX_HP" != "$WANTS_NX_HP" ]; then
teardown_kvm_mod_low_latency
[ "$HAS_KPS" ] && echo "options kvm kvmclock_periodic_sync=0" > $kvm_modprobe_file
[ "$HAS_NX_HP" ] && echo "options kvm nx_huge_pages=0" >> $kvm_modprobe_file
[ "$HAS_PLE_GAP" ] && echo "options kvm_intel ple_gap=0" >> $kvm_modprobe_file
fi
return 0
}
#
# KSM
#
KSM_SERVICES="ksm ksmtuned"
KSM_RUN_PATH=/sys/kernel/mm/ksm/run
KSM_MASK_FILE="${STORAGE_PERSISTENT}/ksm-masked"
disable_ksm()
{
if [ ! -f $KSM_MASK_FILE ]; then
# Always create $KSM_MASK_FILE, since we don't want to
# run any systemctl commands during boot
if ! touch $KSM_MASK_FILE; then
die "failed to create $KSM_MASK_FILE"
fi
# Do not run any systemctl commands if $KSM_SERVICES units do not exist
systemctl cat -- $KSM_SERVICES &> /dev/null || return 0
systemctl --now --quiet mask $KSM_SERVICES
# Unmerge all shared pages
test -f $KSM_RUN_PATH && echo 2 > $KSM_RUN_PATH
fi
}
# Should only be called when full_rollback == true
enable_ksm()
{
if [ -f $KSM_MASK_FILE ]; then
# Do not run any systemctl commands if $KSM_SERVICES units do not exist
systemctl cat -- $KSM_SERVICES &> /dev/null || return 0
if systemctl --quiet unmask $KSM_SERVICES; then
rm -f $KSM_MASK_FILE
fi
fi
}
die() {
echo "$@" >&2
exit 1
}
#
# ACTION PROCESSING
#
error_not_implemented() {
echo "tuned: script function '$1' is not implemented." >&2
}
# implicit actions, will be used if not provided by profile script:
#
# * start must be implemented
# * stop must be implemented
start() {
error_not_implemented start
return 16
}
stop() {
error_not_implemented stop
return 16
}
#
# main processing
#
process() {
ARG="$1"
shift
case "$ARG" in
start)
start "$@"
RETVAL=$?
;;
stop)
stop "$@"
RETVAL=$?
;;
verify)
if declare -f verify &> /dev/null;
then
verify "$@"
else
:
fi
RETVAL=$?
;;
*)
echo $"Usage: $0 {start|stop|verify}"
RETVAL=2
;;
esac
exit $RETVAL
}
cloudlinux-latency-performance/tuned.conf 0000644 00000003660 15033054174 0014663 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimized Cloudlinux hosting Servers
include=throughput-performance
[bootloader]
cmdline = systemd.unified_cgroup_hierarchy=0 systemd.legacy_systemd_cgroup_controller cgroup.memory=nokmem
[cpu]
governor=performance
energy_perf_bias=performance
min_perf_pct=100
# The alternation of CPU bound load and disk IO operations of postgresql
# db server suggest CPU to go into powersave mode.
#
# Explicitly disable deep c-states to reduce latency on OLTP workloads.
force_latency=1
[vm]
transparent_hugepages=never
[sysctl]
kernel.numa_balancing = 1
vm.dirty_ratio = 40
vm.dirty_background_ratio = 10
vm.swappiness=10
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
# Increase kernel buffer size maximums. Currently this seems only necessary at 40Gb speeds.
#
# The buffer tuning values below do not account for any potential hugepage allocation.
# Ensure that you do not oversubscribe system memory.
#net.ipv4.tcp_rmem="4096 87380 16777216"
#net.ipv4.tcp_wmem="4096 16384 16777216"
##
# Busy polling helps reduce latency in the network receive path
# by allowing socket layer code to poll the receive queue of a
# network device, and disabling network interrupts.
# busy_read value greater than 0 enables busy polling. Recommended
# net.core.busy_read value is 50.
# busy_poll value greater than 0 enables polling globally.
# Recommended net.core.busy_poll value is 50
net.core.busy_read=50
net.core.busy_poll=50
# TCP fast open reduces network latency by enabling data exchange
# during the sender's initial TCP SYN. The value 3 enables fast open
# on client and server connections.
net.ipv4.tcp_fastopen=3
####
vm.zone_reclaim_mode=0
[scheduler]
sched_min_granularity_ns = 10000000
sched_wakeup_granularity_ns = 15000000
[disk-vm]
type=disk
devices = vd*
elevator = mq-deadline
[disk-sas]
type=disk
devices = sd*
elevator = mq-deadline
[disk-nvme]
type=disk
devices = nvme*
elevator = none
readahead = 0
intel-sst/tuned.conf 0000644 00000000165 15033054174 0010460 0 ustar 00 [main]
summary=Configure for Intel Speed Select Base Frequency
[bootloader]
cmdline_intel_sst=-intel_pstate=disable
cloudlinux-dummy/tuned.conf 0000644 00000000111 15033054174 0012044 0 ustar 00 #
# tuned configuration
#
[main]
summary=Empty CloudLinux tuned profile
virtual-host/tuned.conf 0000644 00000001043 15033054174 0011173 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for running KVM guests
include=throughput-performance
[sysctl]
# Start background writeback (via writeback threads) at this percentage (system
# default is 10%)
vm.dirty_background_ratio = 5
[cpu]
# Setting C3 state sleep mode/power savings
force_latency=cstate.id_no_zero:3|70
[scheduler]
runtime=0
# The total time the scheduler will consider a migrated process
# "cache hot" and thus less likely to be re-migrated
# (system default is 500000, i.e. 0.5 ms)
sched_migration_cost_ns = 5000000
network-latency/tuned.conf 0000644 00000001044 15033054174 0011661 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for deterministic performance at the cost of increased power consumption, focused on low latency network performance
include=latency-performance
[vm]
transparent_hugepages=never
[sysctl]
net.core.busy_read=50
net.core.busy_poll=50
net.ipv4.tcp_fastopen=3
kernel.numa_balancing=0
kernel.hung_task_timeout_secs = 600
kernel.nmi_watchdog = 0
vm.stat_interval = 10
kernel.timer_migration = 0
[bootloader]
cmdline_network_latency=skew_tick=1 tsc=reliable rcupdate.rcu_normal_after_boot=1
[rtentsk]
aws/tuned.conf 0000644 00000001032 15033054174 0007322 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for aws ec2 instances
include=throughput-performance
# Marvell ThunderX
[bootloader.thunderx]
# rhbz:1836058
type=bootloader
uname_regex=aarch64
cmdline=+iommu.strict=0
[bootloader]
# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/nvme-ebs-volumes.html#timeout-nvme-ebs-volumes
# set nvme_core.io_timeout to 4294967295
# https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/enhanced-networking-ena.html
# set net.ifnames to 0
cmdline=+net.ifnames=0 nvme_core.io_timeout=4294967295
accelerator-performance/tuned.conf 0000644 00000004161 15033054174 0013321 0 ustar 00 #
# tuned configuration
#
[main]
summary=Throughput performance based tuning with disabled higher latency STOP states
[cpu]
governor=performance
energy_perf_bias=performance
min_perf_pct=100
force_latency=99
[acpi]
platform_profile=performance
[disk]
readahead=>4096
[sysctl]
# If a workload mostly uses anonymous memory and it hits this limit, the entire
# working set is buffered for I/O, and any more write buffering would require
# swapping, so it's time to throttle writes until I/O can catch up. Workloads
# that mostly use file mappings may be able to use even higher values.
#
# The generator of dirty data starts writeback at this percentage (system default
# is 20%)
vm.dirty_ratio = 40
# Start background writeback (via writeback threads) at this percentage (system
# default is 10%)
vm.dirty_background_ratio = 10
# PID allocation wrap value. When the kernel's next PID value
# reaches this value, it wraps back to a minimum PID value.
# PIDs of value pid_max or larger are not allocated.
#
# A suggested value for pid_max is 1024 * <# of cpu cores/threads in system>
# e.g., a box with 32 cpus, the default of 32768 is reasonable, for 64 cpus,
# 65536, for 4096 cpus, 4194304 (which is the upper limit possible).
#kernel.pid_max = 65536
# The swappiness parameter controls the tendency of the kernel to move
# processes out of physical memory and onto the swap disk.
# 0 tells the kernel to avoid swapping processes out of physical memory
# for as long as possible
# 100 tells the kernel to aggressively swap processes out of physical memory
# and move them to swap cache
vm.swappiness=10
[scheduler]
# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
#
# Minimal preemption granularity for CPU-bound tasks:
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
sched_min_granularity_ns = 10000000
# SCHED_OTHER wake-up granularity.
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
#
# This option delays the preemption effects of decoupled workloads
# and reduces their over-scheduling. Synchronous workloads will still
# have immediate wakeup/sleep latencies.
sched_wakeup_granularity_ns = 15000000
desktop/tuned.conf 0000644 00000000210 15033054174 0010176 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for the desktop use-case
include=balanced
[sysctl]
kernel.sched_autogroup_enabled=1
throughput-performance/tuned.conf 0000644 00000006142 15033054174 0013247 0 ustar 00 #
# tuned configuration
#
[main]
summary=Broadly applicable tuning that provides excellent performance across a variety of common server workloads
[variables]
thunderx_cpuinfo_regex=CPU part\s+:\s+(0x0?516)|(0x0?af)|(0x0?a[0-3])|(0x0?b8)\b
amd_cpuinfo_regex=model name\s+:.*\bAMD\b
[cpu]
governor=performance
energy_perf_bias=performance
min_perf_pct=100
energy_performance_preference=performance
[acpi]
platform_profile=performance
# Marvell ThunderX
[vm.thunderx]
type=vm
uname_regex=aarch64
cpuinfo_regex=${thunderx_cpuinfo_regex}
transparent_hugepages=never
[disk]
# The default unit for readahead is KiB. This can be adjusted to sectors
# by specifying the relevant suffix, eg. (readahead => 8192 s). There must
# be at least one space between the number and suffix (if suffix is specified).
readahead=>4096
[sysctl]
# If a workload mostly uses anonymous memory and it hits this limit, the entire
# working set is buffered for I/O, and any more write buffering would require
# swapping, so it's time to throttle writes until I/O can catch up. Workloads
# that mostly use file mappings may be able to use even higher values.
#
# The generator of dirty data starts writeback at this percentage (system default
# is 20%)
vm.dirty_ratio = 40
# Start background writeback (via writeback threads) at this percentage (system
# default is 10%)
vm.dirty_background_ratio = 10
# PID allocation wrap value. When the kernel's next PID value
# reaches this value, it wraps back to a minimum PID value.
# PIDs of value pid_max or larger are not allocated.
#
# A suggested value for pid_max is 1024 * <# of cpu cores/threads in system>
# e.g., a box with 32 cpus, the default of 32768 is reasonable, for 64 cpus,
# 65536, for 4096 cpus, 4194304 (which is the upper limit possible).
#kernel.pid_max = 65536
# The swappiness parameter controls the tendency of the kernel to move
# processes out of physical memory and onto the swap disk.
# 0 tells the kernel to avoid swapping processes out of physical memory
# for as long as possible
# 100 tells the kernel to aggressively swap processes out of physical memory
# and move them to swap cache
vm.swappiness=10
# The default kernel value 128 was over twenty years old default,
# kernel-5.4 increased it to 4096, thus do not have it lower than 2048
# on older kernels
net.core.somaxconn=>2048
[scheduler]
runtime=0
# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
#
# Minimal preemption granularity for CPU-bound tasks:
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
sched_min_granularity_ns = 10000000
# SCHED_OTHER wake-up granularity.
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
#
# This option delays the preemption effects of decoupled workloads
# and reduces their over-scheduling. Synchronous workloads will still
# have immediate wakeup/sleep latencies.
sched_wakeup_granularity_ns = 15000000
# Marvell ThunderX
[sysctl.thunderx]
type=sysctl
uname_regex=aarch64
cpuinfo_regex=${thunderx_cpuinfo_regex}
kernel.numa_balancing=0
# AMD
[scheduler.amd]
type=scheduler
uname_regex=x86_64
cpuinfo_regex=${amd_cpuinfo_regex}
runtime=0
sched_migration_cost_ns=5000000
epyc-eda/tuned.conf 0000644 00000000600 15033054174 0010217 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimize for EDA compute workloads on AMD EPYC CPUs
description=Configures virtual memory, CPU governors, and network settings for EDA compute workloads.
include=throughput-performance
# AMD
[scheduler.amd]
type=scheduler
#Allow processes to rapidly move between cores to avoid idle time and maximize CPU usage
sched_migration_cost_ns=10000
cloudlinux-dummy 0000755 00000000000 15033054174 0010001 0 ustar 00 cloudlinux-default/tuned.conf 0000644 00000001560 15033054174 0012346 0 ustar 00 #
# tuned configuration
#
[main]
summary=Optimized Cloudlinux hosting Servers
include=throughput-performance
[bootloader]
cmdline = systemd.unified_cgroup_hierarchy=0 systemd.legacy_systemd_cgroup_controller cgroup.memory=nokmem
[cpu]
governor=performance
energy_perf_bias=performance
min_perf_pct=100
[vm]
transparent_hugepages=never
[sysctl]
kernel.numa_balancing = 1
#################
vm.dirty_ratio = 40
vm.dirty_background_ratio = 10
vm.swappiness=10
####
vm.zone_reclaim_mode=0
####################3
# TCP fast open reduces network latency by enabling data exchange
# during the sender's initial TCP SYN. The value 3 enables fast open
# on client and server connections.
net.ipv4.tcp_fastopen=3
[disk-vm]
type=disk
devices = vd*
elevator = mq-deadline
[disk-sas]
type=disk
devices = sd*
elevator = mq-deadline
[disk-nvme]
type=disk
devices = nvme*
elevator = none
patterns.py 0000644 00000000517 15035135374 0006767 0 ustar 00 class Singleton(object):
"""
Singleton design pattern.
"""
_instance = None
def __init__(self):
if self.__class__ is Singleton:
raise TypeError("Cannot instantiate directly.")
@classmethod
def get_instance(cls):
"""Get the class instance."""
if cls._instance is None:
cls._instance = cls()
return cls._instance
__init__.py 0000644 00000001671 15035135374 0006670 0 ustar 00 #
# tuned: daemon for monitoring and adaptive tuning of system devices
#
# Copyright (C) 2008-2013 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
__copyright__ = "Copyright 2008-2013 Red Hat, Inc."
__license__ = "GPLv2+"
__email__ = "power-management@lists.fedoraproject.org"
exceptions.py 0000644 00000001070 15035135374 0007303 0 ustar 00 import tuned.logs
import sys
import traceback
exception_logger = tuned.logs.get()
class TunedException(Exception):
"""
"""
def log(self, logger = None):
if logger is None:
logger = exception_logger
logger.error(str(self))
self._log_trace(logger)
def _log_trace(self, logger):
(exc_type, exc_value, exc_traceback) = sys.exc_info()
if exc_value != self:
logger.debug("stack trace is no longer available")
else:
exception_info = "".join(traceback.format_exception(exc_type, exc_value, exc_traceback)).rstrip()
logger.debug(exception_info)
hardware/__init__.py 0000644 00000000132 15035135374 0010454 0 ustar 00 from .inventory import *
from .device_matcher import *
from .device_matcher_udev import *
hardware/device_matcher_udev.py 0000644 00000001021 15035135374 0012700 0 ustar 00 from . import device_matcher
import re
__all__ = ["DeviceMatcherUdev"]
class DeviceMatcherUdev(device_matcher.DeviceMatcher):
def match(self, regex, device):
"""
Match a device against the udev regex in tuning profiles.
device is a pyudev.Device object
"""
properties = ''
try:
items = device.properties.items()
except AttributeError:
items = device.items()
for key, val in sorted(list(items)):
properties += key + '=' + val + '\n'
return re.search(regex, properties, re.MULTILINE) is not None
hardware/__pycache__/device_matcher.cpython-36.pyc 0000644 00000003701 15035135374 0016150 0 ustar 00 3
�<�e( � @ s* d dl Z d dlZdgZG dd� de�ZdS )� N�
DeviceMatcherc @ s e Zd ZdZdd� Zdd� ZdS )r a,
Device name matching against the devices specification in tuning profiles.
The devices specification consists of multiple rules separated by spaces.
The rules have a syntax of shell-style wildcards and are either positive
or negative. The negative rules are prefixed with an exclamation mark.
c s� t |t�rtjd|�}dd� |D �� � fdd�|D �}t� �dkrL� jd� d}x � D ]}tj||�rVd}P qVW x |D ]}tj||�rvd}P qvW |S ) a
Match a device against the specification in the profile.
If there is no positive rule in the specification, implicit rule
which matches all devices is added. The device matches if and only
if it matches some positive rule, but no negative rule.
z\s|,\s*c S s* g | ]"}|j d � r|j� dk r|�qS )�!� )�
startswith�strip)�.0�rule� r �$/usr/lib/python3.6/device_matcher.py�
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r s r �*FT)�
isinstance�str�re�split�len�append�fnmatch)�self�rulesZ device_nameZnegative_rulesZmatchesr r )r
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�match s
zDeviceMatcher.matchc C s, g }x"|D ]}| j ||�r
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�<module> s hardware/__pycache__/device_matcher_udev.cpython-36.opt-1.pyc 0000644 00000001504 15035135374 0020131 0 ustar 00 3
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r. |j� }Y nX x,tt|��D ] \}}||d | d 7 }q>W tj||tj�dk S )zc
Match a device against the udev regex in tuning profiles.
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properties�items�AttributeError�sorted�list�re�search� MULTILINE)�selfZregexZdevicer r �key�val� r �)/usr/lib/python3.6/device_matcher_udev.py�match s zDeviceMatcherUdev.matchN)�__name__�
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�__all__Z
DeviceMatcherr r r r r �<module> s hardware/__pycache__/device_matcher.cpython-36.opt-1.pyc 0000644 00000003701 15035135374 0017107 0 ustar 00 3
�<�e( � @ s* d dl Z d dlZdgZG dd� de�ZdS )� N�
DeviceMatcherc @ s e Zd ZdZdd� Zdd� ZdS )r a,
Device name matching against the devices specification in tuning profiles.
The devices specification consists of multiple rules separated by spaces.
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or negative. The negative rules are prefixed with an exclamation mark.
c s� t |t�rtjd|�}dd� |D �� � fdd�|D �}t� �dkrL� jd� d}x � D ]}tj||�rVd}P qVW x |D ]}tj||�rvd}P qvW |S ) a
Match a device against the specification in the profile.
If there is no positive rule in the specification, implicit rule
which matches all devices is added. The device matches if and only
if it matches some positive rule, but no negative rule.
z\s|,\s*c S s* g | ]"}|j d � r|j� dk r|�qS )�!� )�
startswith�strip)�.0�rule� r �$/usr/lib/python3.6/device_matcher.py�
<listcomp> s z'DeviceMatcher.match.<locals>.<listcomp>c s g | ]}|� kr|d d� �qS )� Nr )r r )�positive_rulesr r
r s r �*FT)�
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r
�match s
zDeviceMatcher.matchc C s, g }x"|D ]}| j ||�r
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)r r )r r Z device_listZmatching_devicesZdevicer r r
�
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�<module> s hardware/__pycache__/inventory.cpython-36.pyc 0000644 00000010146 15035135374 0015244 0 ustar 00 3
�<�e3 � @ sP d dl Z d dlZd dlmZ dgZejj� ZG dd� de�Z G dd� de�Z
dS )� N)�consts� Inventoryc @ s\ e Zd ZdZddd�Zdd� Zdd � Zd
d � Zd d
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dd� Z ddd�Z dS )r z�
Inventory object can handle information about available hardware devices. It also informs the plugins
about related hardware events.
NTc C s� |d k r|| _ n
tj� | _ |d kr(tj}|j| j �| _|d krDtj}|rxy| jj|� W n t k
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j d� Y nX |d kr�t � }|| _
d | _i | _d S )NzLcannot set udev monitor receive buffer size, we are probably running inside zIcontainer or with limited capabilites, TuneD functionality may be limitedz�cannot set udev monitor receive buffer size, we are probably running inside container or with limited capabilites, TuneD functionality may be limited)�
_udev_context�pyudevZContextZMonitorZ from_netlink�
_udev_monitorr ZCFG_DEF_UDEV_BUFFER_SIZE�set_receive_buffer_size�EnvironmentError�log�warn�_MonitorObserverFactory�_monitor_observer_factory�_monitor_observer�_subscriptions)�selfZ udev_contextZudev_monitor_clsZmonitor_observer_factory� buffer_sizer � r � /usr/lib/python3.6/inventory.py�__init__ s&
zInventory.__init__c C s: yt jj| j||�S tk
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DeviceMatcherr r r r r �<module> s hardware/inventory.py 0000644 00000007463 15035135374 0010770 0 ustar 00 import pyudev
import tuned.logs
from tuned import consts
__all__ = ["Inventory"]
log = tuned.logs.get()
class Inventory(object):
"""
Inventory object can handle information about available hardware devices. It also informs the plugins
about related hardware events.
"""
def __init__(self, udev_context=None, udev_monitor_cls=None, monitor_observer_factory=None, buffer_size=None, set_receive_buffer_size=True):
if udev_context is not None:
self._udev_context = udev_context
else:
self._udev_context = pyudev.Context()
if udev_monitor_cls is None:
udev_monitor_cls = pyudev.Monitor
self._udev_monitor = udev_monitor_cls.from_netlink(self._udev_context)
if buffer_size is None:
buffer_size = consts.CFG_DEF_UDEV_BUFFER_SIZE
if (set_receive_buffer_size):
try:
self._udev_monitor.set_receive_buffer_size(buffer_size)
except EnvironmentError:
log.warn("cannot set udev monitor receive buffer size, we are probably running inside " +
"container or with limited capabilites, TuneD functionality may be limited")
if monitor_observer_factory is None:
monitor_observer_factory = _MonitorObserverFactory()
self._monitor_observer_factory = monitor_observer_factory
self._monitor_observer = None
self._subscriptions = {}
def get_device(self, subsystem, sys_name):
"""Get a pyudev.Device object for the sys_name (e.g. 'sda')."""
try:
return pyudev.Devices.from_name(self._udev_context, subsystem, sys_name)
# workaround for pyudev < 0.18
except AttributeError:
return pyudev.Device.from_name(self._udev_context, subsystem, sys_name)
def get_devices(self, subsystem):
"""Get list of devices on a given subsystem."""
return self._udev_context.list_devices(subsystem=subsystem)
def _handle_udev_event(self, event, device):
if not device.subsystem in self._subscriptions:
return
for (plugin, callback) in self._subscriptions[device.subsystem]:
try:
callback(event, device)
except Exception as e:
log.error("Exception occured in event handler of '%s'." % plugin)
log.exception(e)
def subscribe(self, plugin, subsystem, callback):
"""Register handler of device events on a given subsystem."""
log.debug("adding handler: %s (%s)" % (subsystem, plugin))
callback_data = (plugin, callback)
if subsystem in self._subscriptions:
self._subscriptions[subsystem].append(callback_data)
else:
self._subscriptions[subsystem] = [callback_data, ]
self._udev_monitor.filter_by(subsystem)
# After start(), HW events begin to get queued up
self._udev_monitor.start()
def start_processing_events(self):
if self._monitor_observer is None:
log.debug("starting monitor observer")
self._monitor_observer = self._monitor_observer_factory.create(self._udev_monitor, self._handle_udev_event)
self._monitor_observer.start()
def stop_processing_events(self):
if self._monitor_observer is not None:
log.debug("stopping monitor observer")
self._monitor_observer.stop()
self._monitor_observer = None
def _unsubscribe_subsystem(self, plugin, subsystem):
for callback_data in self._subscriptions[subsystem]:
(_plugin, callback) = callback_data
if plugin == _plugin:
log.debug("removing handler: %s (%s)" % (subsystem, plugin))
self._subscriptions[subsystem].remove(callback_data)
def unsubscribe(self, plugin, subsystem=None):
"""Unregister handler registered with subscribe method."""
empty_subsystems = []
for _subsystem in self._subscriptions:
if subsystem is None or _subsystem == subsystem:
self._unsubscribe_subsystem(plugin, _subsystem)
if len(self._subscriptions[_subsystem]) == 0:
empty_subsystems.append(_subsystem)
for _subsystem in empty_subsystems:
del self._subscriptions[_subsystem]
class _MonitorObserverFactory(object):
def create(self, *args, **kwargs):
return pyudev.MonitorObserver(*args, **kwargs)
hardware/device_matcher.py 0000644 00000003050 15035135374 0011661 0 ustar 00 import fnmatch
import re
__all__ = ["DeviceMatcher"]
class DeviceMatcher(object):
"""
Device name matching against the devices specification in tuning profiles.
The devices specification consists of multiple rules separated by spaces.
The rules have a syntax of shell-style wildcards and are either positive
or negative. The negative rules are prefixed with an exclamation mark.
"""
def match(self, rules, device_name):
"""
Match a device against the specification in the profile.
If there is no positive rule in the specification, implicit rule
which matches all devices is added. The device matches if and only
if it matches some positive rule, but no negative rule.
"""
if isinstance(rules, str):
rules = re.split(r"\s|,\s*", rules)
positive_rules = [rule for rule in rules if not rule.startswith("!") and not rule.strip() == '']
negative_rules = [rule[1:] for rule in rules if rule not in positive_rules]
if len(positive_rules) == 0:
positive_rules.append("*")
matches = False
for rule in positive_rules:
if fnmatch.fnmatch(device_name, rule):
matches = True
break
for rule in negative_rules:
if fnmatch.fnmatch(device_name, rule):
matches = False
break
return matches
def match_list(self, rules, device_list):
"""
Match a device list against the specification in the profile. Returns
the list, which is a subset of devices which match.
"""
matching_devices = []
for device in device_list:
if self.match(rules, device):
matching_devices.append(device)
return matching_devices
ppd/ppd.conf 0000644 00000000227 15035135374 0006770 0 ustar 00 [main]
# The default PPD profile
default=balanced
[profiles]
# PPD = TuneD
power-saver=powersave
balanced=balanced
performance=throughput-performance
ppd/tuned-ppd.service 0000644 00000000454 15035135374 0010622 0 ustar 00 [Unit]
Description=PPD-to-TuneD API Translation Daemon
Requires=tuned.service
After=tuned.service
Before=multi-user.target display-manager.target
[Service]
Type=dbus
PIDFile=/run/tuned/tuned-ppd.pid
BusName=net.hadess.PowerProfiles
ExecStart=/usr/sbin/tuned-ppd
[Install]
WantedBy=graphical.target
ppd/tuned-ppd.dbus.service 0000644 00000000151 15035135374 0011550 0 ustar 00 [D-BUS Service]
Name=net.hadess.PowerProfiles
Exec=/bin/false
User=root
SystemdService=tuned-ppd.service
ppd/__pycache__/controller.cpython-36.pyc 0000644 00000020764 15035135374 0014367 0 ustar 00 3
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interfacesZExportableInterfacerB r r r r �<module> s 9 ppd/tuned-ppd.policy 0000644 00000001740 15035135374 0010460 0 ustar 00 <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
"http://www.freedesktop.org/standards/PolicyKit/1.0/policyconfig.dtd">
<policyconfig>
<vendor>TuneD</vendor>
<vendor_url>https://tuned-project.org/</vendor_url>
<action id="net.hadess.PowerProfiles.HoldProfile">
<description>Hold power profile</description>
<message>Authentication is required to hold power profiles.</message>
<defaults>
<allow_any>no</allow_any>
<allow_inactive>no</allow_inactive>
<allow_active>yes</allow_active>
</defaults>
</action>
<action id="net.hadess.PowerProfiles.ReleaseProfile">
<description>Release power profile</description>
<message>Authentication is required to release power profiles.</message>
<defaults>
<allow_any>no</allow_any>
<allow_inactive>no</allow_inactive>
<allow_active>yes</allow_active>
</defaults>
</action>
</policyconfig>
ppd/config.py 0000644 00000004521 15035135374 0007156 0 ustar 00 from tuned.utils.config_parser import ConfigParser, Error
from tuned.exceptions import TunedException
import os
PPD_POWER_SAVER = "power-saver"
PPD_PERFORMANCE = "performance"
MAIN_SECTION = "main"
PROFILES_SECTION = "profiles"
DEFAULT_PROFILE_OPTION = "default"
class PPDConfig:
def __init__(self, config_file):
self.load_from_file(config_file)
@property
def default_profile(self):
return self._default_profile
@property
def ppd_to_tuned(self):
return self._ppd_to_tuned
@property
def tuned_to_ppd(self):
return self._tuned_to_ppd
def load_from_file(self, config_file):
cfg = ConfigParser()
if not os.path.isfile(config_file):
raise TunedException("Configuration file '%s' does not exist" % config_file)
try:
cfg.read(config_file)
except Error:
raise TunedException("Error parsing the configuration file '%s'" % config_file)
if PROFILES_SECTION not in cfg:
raise TunedException("Missing profiles section in the configuration file '%s'" % config_file)
self._ppd_to_tuned = dict(cfg[PROFILES_SECTION])
if not all(isinstance(mapped_profile, str) for mapped_profile in self._ppd_to_tuned.values()):
raise TunedException("Invalid profile mapping in the configuration file '%s'" % config_file)
if len(set(self._ppd_to_tuned.values())) != len(self._ppd_to_tuned):
raise TunedException("Duplicate profile mapping in the configuration file '%s'" % config_file)
self._tuned_to_ppd = {v: k for k, v in self._ppd_to_tuned.items()}
if PPD_POWER_SAVER not in self._ppd_to_tuned:
raise TunedException("Missing power-saver profile in the configuration file '%s'" % config_file)
if PPD_PERFORMANCE not in self._ppd_to_tuned:
raise TunedException("Missing performance profile in the configuration file '%s'" % config_file)
if MAIN_SECTION not in cfg or DEFAULT_PROFILE_OPTION not in cfg[MAIN_SECTION]:
raise TunedException("Missing default profile in the configuration file '%s'" % config_file)
self._default_profile = cfg[MAIN_SECTION][DEFAULT_PROFILE_OPTION]
if self._default_profile not in self._ppd_to_tuned:
raise TunedException("Unknown default profile '%s'" % self._default_profile)
ppd/controller.py 0000644 00000015676 15035135374 0010111 0 ustar 00 from tuned import exports, logs
from tuned.utils.commands import commands
from tuned.consts import PPD_CONFIG_FILE
from tuned.ppd.config import PPDConfig, PPD_PERFORMANCE, PPD_POWER_SAVER
from enum import StrEnum
import threading
import dbus
import os
log = logs.get()
DRIVER = "tuned"
NO_TURBO_PATH = "/sys/devices/system/cpu/intel_pstate/no_turbo"
LAP_MODE_PATH = "/sys/bus/platform/devices/thinkpad_acpi/dytc_lapmode"
class PerformanceDegraded(StrEnum):
NONE = ""
LAP_DETECTED = "lap-detected"
HIGH_OPERATING_TEMPERATURE = "high-operating-temperature"
class ProfileHold(object):
def __init__(self, profile, reason, app_id, watch):
self.profile = profile
self.reason = reason
self.app_id = app_id
self.watch = watch
def as_dict(self):
return {
"Profile": self.profile,
"Reason": self.reason,
"ApplicationId": self.app_id,
}
class ProfileHoldManager(object):
def __init__(self, controller):
self._holds = {}
self._cookie_counter = 0
self._controller = controller
def _callback(self, cookie, app_id):
def callback(name):
if name == "":
log.info("Application '%s' disappeared, releasing hold '%s'" % (app_id, cookie))
self.remove(cookie)
return callback
def _effective_hold_profile(self):
if any(hold.profile == PPD_POWER_SAVER for hold in self._holds.values()):
return PPD_POWER_SAVER
return PPD_PERFORMANCE
def _cancel(self, cookie):
if cookie not in self._holds:
return
hold = self._holds.pop(cookie)
hold.watch.cancel()
exports.send_signal("ProfileReleased", cookie)
exports.property_changed("ActiveProfileHolds", self.as_dbus_array())
log.info("Releasing hold '%s': profile '%s' by application '%s'" % (cookie, hold.profile, hold.app_id))
def as_dbus_array(self):
return dbus.Array([hold.as_dict() for hold in self._holds.values()], signature="a{sv}")
def add(self, profile, reason, app_id, caller):
cookie = self._cookie_counter
self._cookie_counter += 1
watch = self._controller.bus.watch_name_owner(caller, self._callback(cookie, app_id))
log.info("Adding hold '%s': profile '%s' by application '%s'" % (cookie, profile, app_id))
self._holds[cookie] = ProfileHold(profile, reason, app_id, watch)
exports.property_changed("ActiveProfileHolds", self.as_dbus_array())
self._controller.switch_profile(profile)
return cookie
def has(self, cookie):
return cookie in self._holds
def remove(self, cookie):
self._cancel(cookie)
if len(self._holds) != 0:
new_profile = self._effective_hold_profile()
else:
new_profile = self._controller.base_profile
self._controller.switch_profile(new_profile)
def clear(self):
for cookie in self._holds:
self._cancel(cookie)
class Controller(exports.interfaces.ExportableInterface):
def __init__(self, bus, tuned_interface):
super(Controller, self).__init__()
self._bus = bus
self._tuned_interface = tuned_interface
self._profile_holds = ProfileHoldManager(self)
self._performance_degraded = PerformanceDegraded.NONE
self._cmd = commands()
self._terminate = threading.Event()
self.load_config()
def _check_performance_degraded(self):
performance_degraded = PerformanceDegraded.NONE
if os.path.exists(NO_TURBO_PATH):
if int(self._cmd.read_file(NO_TURBO_PATH)) == 1:
performance_degraded = PerformanceDegraded.HIGH_OPERATING_TEMPERATURE
if os.path.exists(LAP_MODE_PATH):
if int(self._cmd.read_file(LAP_MODE_PATH)) == 1:
performance_degraded = PerformanceDegraded.LAP_DETECTED
if performance_degraded != self._performance_degraded:
log.info("Performance degraded: %s" % performance_degraded)
self._performance_degraded = performance_degraded
exports.property_changed("PerformanceDegraded", performance_degraded)
def run(self):
exports.start()
while not self._cmd.wait(self._terminate, 1):
self._check_performance_degraded()
exports.stop()
@property
def bus(self):
return self._bus
@property
def base_profile(self):
return self._base_profile
def terminate(self):
self._terminate.set()
def load_config(self):
self._config = PPDConfig(PPD_CONFIG_FILE)
self._base_profile = self._config.default_profile
self.switch_profile(self._config.default_profile)
def switch_profile(self, profile):
if self.active_profile() == profile:
return
tuned_profile = self._config.ppd_to_tuned[profile]
log.info("Switching to profile '%s'" % tuned_profile)
self._tuned_interface.switch_profile(tuned_profile)
exports.property_changed("ActiveProfile", profile)
def active_profile(self):
tuned_profile = self._tuned_interface.active_profile()
return self._config.tuned_to_ppd.get(tuned_profile, "unknown")
@exports.export("sss", "u")
def HoldProfile(self, profile, reason, app_id, caller):
if profile != PPD_POWER_SAVER and profile != PPD_PERFORMANCE:
raise dbus.exceptions.DBusException(
"Only '%s' and '%s' profiles may be held" % (PPD_POWER_SAVER, PPD_PERFORMANCE)
)
return self._profile_holds.add(profile, reason, app_id, caller)
@exports.export("u", "")
def ReleaseProfile(self, cookie, caller):
if not self._profile_holds.has(cookie):
raise dbus.exceptions.DBusException("No active hold for cookie '%s'" % cookie)
self._profile_holds.remove(cookie)
@exports.signal("u")
def ProfileReleased(self, cookie):
pass
@exports.property_setter("ActiveProfile")
def set_active_profile(self, profile):
if profile not in self._config.ppd_to_tuned:
raise dbus.exceptions.DBusException("Invalid profile '%s'" % profile)
self._base_profile = profile
self._profile_holds.clear()
self.switch_profile(profile)
@exports.property_getter("ActiveProfile")
def get_active_profile(self):
return self.active_profile()
@exports.property_getter("Profiles")
def get_profiles(self):
return dbus.Array(
[{"Profile": profile, "Driver": DRIVER} for profile in self._config.ppd_to_tuned.keys()],
signature="a{sv}",
)
@exports.property_getter("Actions")
def get_actions(self):
return dbus.Array([], signature="s")
@exports.property_getter("PerformanceDegraded")
def get_performance_degraded(self):
return self._performance_degraded
@exports.property_getter("ActiveProfileHolds")
def get_active_profile_holds(self):
return self._profile_holds.as_dbus_array()
ppd/dbus.conf 0000644 00000001353 15035135374 0007143 0 ustar 00 <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>
<policy user="root">
<allow own="net.hadess.PowerProfiles"/>
</policy>
<policy context="default">
<allow send_destination="net.hadess.PowerProfiles" send_interface="net.hadess.PowerProfiles"/>
<allow send_destination="net.hadess.PowerProfiles" send_interface="org.freedesktop.DBus.Introspectable"/>
<allow send_destination="net.hadess.PowerProfiles" send_interface="org.freedesktop.DBus.Properties"/>
<allow send_destination="net.hadess.PowerProfiles" send_interface="org.freedesktop.DBus.Peer"/>
</policy>
</busconfig>
storage/__init__.py 0000644 00000000215 15035135374 0010325 0 ustar 00 from tuned.storage.storage import Storage
from tuned.storage.factory import Factory
from tuned.storage.pickle_provider import PickleProvider
storage/interfaces.py 0000644 00000000731 15035135374 0010714 0 ustar 00 class Factory(object):
def create(self, namespace):
raise NotImplementedError()
class Provider(object):
def set(self, namespace, option, value):
raise NotImplementedError()
def get(self, namespace, option, default=None):
raise NotImplementedError()
def unset(self, namespace, option):
raise NotImplementedError()
def clear(self):
raise NotImplementedError()
def load(self):
raise NotImplementedError()
def save(self):
raise NotImplementedError()
storage/__pycache__/storage.cpython-36.opt-1.pyc 0000644 00000001631 15035135374 0015460 0 ustar 00 3
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�defaultr r r r s z Storage.getc C s | j j| j|� d S )N)r �unsetr )r r
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r N)�objectr r r r r �<module> s storage/__pycache__/pickle_provider.cpython-36.opt-1.pyc 0000644 00000004305 15035135374 0017176 0 ustar 00 3
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t � �d S )N)r )r r r �defaultr r r �get s z Provider.getc C s
t � �d S )N)r )r r r r r r �unset s zProvider.unsetc C s
t � �d S )N)r )r r r r �clear s zProvider.clearc C s
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r N)�objectr r r r r r �<module> s storage/storage.py 0000644 00000000742 15035135374 0010237 0 ustar 00 class Storage(object):
__slots__ = ["_storage_provider", "_namespace"]
def __init__(self, storage_provider, namespace):
self._storage_provider = storage_provider
self._namespace = namespace
def set(self, option, value):
self._storage_provider.set(self._namespace, option, value)
def get(self, option, default=None):
return self._storage_provider.get(self._namespace, option, default)
def unset(self, option):
self._storage_provider.unset(self._namespace, option)
storage/pickle_provider.py 0000644 00000002604 15035135374 0011753 0 ustar 00 from . import interfaces
import tuned.logs
import pickle
import os
import tuned.consts as consts
log = tuned.logs.get()
class PickleProvider(interfaces.Provider):
__slots__ = ["_path", "_data"]
def __init__(self, path=None):
if path is None:
path = consts.DEFAULT_STORAGE_FILE
self._path = path
self._data = {}
def set(self, namespace, option, value):
self._data.setdefault(namespace, {})
self._data[namespace][option] = value
def get(self, namespace, option, default=None):
self._data.setdefault(namespace, {})
return self._data[namespace].get(option, default)
def unset(self, namespace, option):
self._data.setdefault(namespace, {})
if option in self._data[namespace]:
del self._data[namespace][option]
def save(self):
try:
log.debug("Saving %s" % str(self._data))
with open(self._path, "wb") as f:
pickle.dump(self._data, f)
except (OSError, IOError) as e:
log.error("Error saving storage file '%s': %s" % (self._path, e))
def load(self):
try:
with open(self._path, "rb") as f:
self._data = pickle.load(f)
except (OSError, IOError) as e:
log.debug("Error loading storage file '%s': %s" % (self._path, e))
self._data = {}
except EOFError:
self._data = {}
def clear(self):
self._data.clear()
try:
os.unlink(self._path)
except (OSError, IOError) as e:
log.debug("Error removing storage file '%s': %s" % (self._path, e))
storage/factory.py 0000644 00000000546 15035135374 0010244 0 ustar 00 from . import interfaces
from . import storage
class Factory(interfaces.Factory):
__slots__ = ["_storage_provider"]
def __init__(self, storage_provider):
self._storage_provider = storage_provider
@property
def provider(self):
return self._storage_provider
def create(self, namespace):
return storage.Storage(self._storage_provider, namespace)
profiles/__init__.py 0000644 00000000431 15035135374 0010504 0 ustar 00 from tuned.profiles.locator import *
from tuned.profiles.loader import *
from tuned.profiles.profile import *
from tuned.profiles.unit import *
from tuned.profiles.exceptions import *
from tuned.profiles.factory import *
from tuned.profiles.merger import *
from . import functions
profiles/exceptions.py 0000644 00000000137 15035135374 0011131 0 ustar 00 import tuned.exceptions
class InvalidProfileException(tuned.exceptions.TunedException):
pass
profiles/merger.py 0000644 00000004210 15035135374 0010225 0 ustar 00 import collections
from functools import reduce
class Merger(object):
"""
Tool for merging multiple profiles into one.
"""
def __init__(self):
pass
def merge(self, configs):
"""
Merge multiple configurations into one. If there are multiple units of the same type, option 'devices'
is set for each unit with respect to eliminating any duplicate devices.
"""
merged_config = reduce(self._merge_two, configs)
return merged_config
def _merge_two(self, profile_a, profile_b):
"""
Merge two profiles. The configuration of units with matching names are updated with options
from the newer profile. If the 'replace' options of the newer unit is 'True', all options from the
older unit are dropped.
"""
profile_a.options.update(profile_b.options)
for unit_name, unit in list(profile_b.units.items()):
if unit.replace or unit_name not in profile_a.units:
profile_a.units[unit_name] = unit
else:
profile_a.units[unit_name].type = unit.type
profile_a.units[unit_name].enabled = unit.enabled
profile_a.units[unit_name].devices = unit.devices
if unit.devices_udev_regex is not None:
profile_a.units[unit_name].devices_udev_regex = unit.devices_udev_regex
if unit.cpuinfo_regex is not None:
profile_a.units[unit_name].cpuinfo_regex = unit.cpuinfo_regex
if unit.uname_regex is not None:
profile_a.units[unit_name].uname_regex = unit.uname_regex
if unit.script_pre is not None:
profile_a.units[unit_name].script_pre = unit.script_pre
if unit.script_post is not None:
profile_a.units[unit_name].script_post = unit.script_post
if unit.drop is not None:
for option in unit.drop:
profile_a.units[unit_name].options.pop(option, None)
unit.drop = None
if unit_name == "script" and profile_a.units[unit_name].options.get("script", None) is not None:
script = profile_a.units[unit_name].options.get("script", None)
profile_a.units[unit_name].options.update(unit.options)
profile_a.units[unit_name].options["script"] = script + profile_a.units[unit_name].options["script"]
else:
profile_a.units[unit_name].options.update(unit.options)
return profile_a
profiles/unit.py 0000644 00000004671 15035135374 0007736 0 ustar 00 import collections
import re
class Unit(object):
"""
Unit description.
"""
__slots__ = [ "_name", "_type", "_enabled", "_replace", "_drop", "_devices", "_devices_udev_regex", \
"_cpuinfo_regex", "_uname_regex", "_script_pre", "_script_post", "_options" ]
def __init__(self, name, config):
self._name = name
self._type = config.pop("type", self._name)
self._enabled = config.pop("enabled", True) in [True, "True", "true", 1, "1"]
self._replace = config.pop("replace", False) in [True, "True", "true", 1, "1"]
self._drop = config.pop("drop", None)
if self._drop is not None:
self._drop = re.split(r"\b\s*[,;]\s*", str(self._drop))
self._devices = config.pop("devices", "*")
self._devices_udev_regex = config.pop("devices_udev_regex", None)
self._cpuinfo_regex = config.pop("cpuinfo_regex", None)
self._uname_regex = config.pop("uname_regex", None)
self._script_pre = config.pop("script_pre", None)
self._script_post = config.pop("script_post", None)
self._options = collections.OrderedDict(config)
@property
def name(self):
return self._name
@property
def type(self):
return self._type
@type.setter
def type(self, value):
self._type = value
@property
def enabled(self):
return self._enabled
@enabled.setter
def enabled(self, value):
self._enabled = value
@property
def replace(self):
return self._replace
@property
def drop(self):
return self._drop
@drop.setter
def drop(self, value):
self._drop = value
@property
def devices(self):
return self._devices
@devices.setter
def devices(self, value):
self._devices = value
@property
def devices_udev_regex(self):
return self._devices_udev_regex
@devices_udev_regex.setter
def devices_udev_regex(self, value):
self._devices_udev_regex = value
@property
def cpuinfo_regex(self):
return self._cpuinfo_regex
@cpuinfo_regex.setter
def cpuinfo_regex(self, value):
self._cpuinfo_regex = value
@property
def uname_regex(self):
return self._uname_regex
@uname_regex.setter
def uname_regex(self, value):
self._uname_regex = value
@property
def script_pre(self):
return self._script_pre
@script_pre.setter
def script_pre(self, value):
self._script_pre = value
@property
def script_post(self):
return self._script_post
@script_post.setter
def script_post(self, value):
self._script_post = value
@property
def options(self):
return self._options
@options.setter
def options(self, value):
self._options = value
profiles/locator.py 0000644 00000007310 15035135374 0010413 0 ustar 00 import os
import tuned.consts as consts
from tuned.utils.config_parser import ConfigParser, Error
class Locator(object):
"""
Profiles locator and enumerator.
"""
__slots__ = ["_load_directories"]
def __init__(self, load_directories):
if type(load_directories) is not list:
raise TypeError("load_directories parameter is not a list")
self._load_directories = load_directories
@property
def load_directories(self):
return self._load_directories
def _get_config_filename(self, *path_parts):
path_parts = list(path_parts) + ["tuned.conf"]
config_name = os.path.join(*path_parts)
return os.path.normpath(config_name)
def get_config(self, profile_name, skip_files=None):
ret = None
conditional_load = profile_name[0:1] == "-"
if conditional_load:
profile_name = profile_name[1:]
for dir_name in reversed(self._load_directories):
# basename is protection not to get out of the path
config_file = self._get_config_filename(dir_name, os.path.basename(profile_name))
if skip_files is not None and config_file in skip_files:
ret = ""
continue
if os.path.isfile(config_file):
return config_file
if conditional_load and ret is None:
ret = ""
return ret
def check_profile_name_format(self, profile_name):
return profile_name is not None and profile_name != "" and "/" not in profile_name
def parse_config(self, profile_name):
if not self.check_profile_name_format(profile_name):
return None
config_file = self.get_config(profile_name)
if config_file is None:
return None
try:
config = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), allow_no_value=True, strict=False)
config.optionxform = str
with open(config_file) as f:
config.read_string("[" + consts.MAGIC_HEADER_NAME + "]\n" + f.read())
return config
except (IOError, OSError, Error) as e:
return None
# Get profile attributes (e.g. summary, description), attrs is list of requested attributes,
# if it is not list it is converted to list, defvals is list of default values to return if
# attribute is not found, it is also converted to list if it is not list.
# Returns list of the following format [status, profile_name, attr1_val, attr2_val, ...],
# status is boolean.
def get_profile_attrs(self, profile_name, attrs, defvals = None):
# check types
try:
attrs_len = len(attrs)
except TypeError:
attrs = [attrs]
attrs_len = 1
try:
defvals_len = len(defvals)
except TypeError:
defvals = [defvals]
defvals_len = 1
# Extend defvals if needed, last value is used for extension
if defvals_len < attrs_len:
defvals = defvals + ([defvals[-1]] * (attrs_len - defvals_len))
config = self.parse_config(profile_name)
if config is None:
return [False, "", "", ""]
main_unit_in_config = consts.PLUGIN_MAIN_UNIT_NAME in config.sections()
vals = [True, profile_name]
for (attr, defval) in zip(attrs, defvals):
if attr == "" or attr is None:
vals[0] = False
vals = vals + [""]
elif main_unit_in_config and attr in config.options(consts.PLUGIN_MAIN_UNIT_NAME):
vals = vals + [config.get(consts.PLUGIN_MAIN_UNIT_NAME, attr, raw=True)]
else:
vals = vals + [defval]
return vals
def list_profiles(self):
profiles = set()
for dir_name in self._load_directories:
try:
for profile_name in os.listdir(dir_name):
config_file = self._get_config_filename(dir_name, profile_name)
if os.path.isfile(config_file):
profiles.add(profile_name)
except OSError:
pass
return profiles
def get_known_names(self):
return sorted(self.list_profiles())
def get_known_names_summary(self):
return [(profile, self.get_profile_attrs(profile, [consts.PROFILE_ATTR_SUMMARY], [""])[2]) for profile in sorted(self.list_profiles())]
profiles/__pycache__/exceptions.cpython-36.pyc 0000644 00000000536 15035135374 0015420 0 ustar 00 3
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__module__� __qualname__� r r � /usr/lib/python3.6/exceptions.pyr s r )Ztuned.exceptionsZtuned�
exceptionsZTunedExceptionr r r r r �<module> s profiles/__pycache__/unit.cpython-36.opt-1.pyc 0000644 00000007036 15035135374 0015157 0 ustar 00 3
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profiles/variables.py 0000644 00000004444 15035135374 0010725 0 ustar 00 import os
import re
import tuned.logs
from .functions import functions as functions
import tuned.consts as consts
from tuned.utils.commands import commands
from tuned.utils.config_parser import ConfigParser, Error
log = tuned.logs.get()
class Variables():
"""
Storage and processing of variables used in profiles
"""
def __init__(self):
self._cmd = commands()
self._lookup_re = {}
self._lookup_env = {}
self._functions = functions.Functions()
def _add_env_prefix(self, s, prefix):
if s.find(prefix) == 0:
return s
return prefix + s
def _check_var(self, variable):
return re.match(r'\w+$',variable)
def add_variable(self, variable, value):
if value is None:
return
s = str(variable)
if not self._check_var(variable):
log.error("variable definition '%s' contains unallowed characters" % variable)
return
v = self.expand(value)
# variables referenced by ${VAR}, $ can be escaped by two $,
# i.e. the following will not expand: $${VAR}
self._lookup_re[r'(?<!\\)\${' + re.escape(s) + r'}'] = v
self._lookup_env[self._add_env_prefix(s, consts.ENV_PREFIX)] = v
def add_from_file(self, filename):
if not os.path.exists(filename):
log.error("unable to find variables_file: '%s'" % filename)
return
try:
config = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), allow_no_value=True, strict=False)
config.optionxform = str
with open(filename) as f:
config.read_string("[" + consts.MAGIC_HEADER_NAME + "]\n" + f.read(), filename)
except Error:
log.error("error parsing variables_file: '%s'" % filename)
return
for s in config.sections():
for o in config.options(s):
self.add_variable(o, config.get(s, o, raw=True))
def add_from_cfg(self, cfg):
for item in cfg:
if str(item) == "include":
self.add_from_file(os.path.normpath(cfg[item]))
else:
self.add_variable(item, cfg[item])
# expand static variables (no functions)
def expand_static(self, value):
return re.sub(r'\\(\${\w+})', r'\1', self._cmd.multiple_re_replace(self._lookup_re, value))
def expand(self, value):
if value is None:
return None
# expand variables and convert all \${VAR} to ${VAR} (unescape)
s = self.expand_static(str(value))
# expand built-in functions
return self._functions.expand(s)
def get_env(self):
return self._lookup_env
profiles/functions/function_assertion_non_equal.py 0000644 00000001453 15035135374 0016737 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
from tuned.profiles.exceptions import InvalidProfileException
log = tuned.logs.get()
class assertion_non_equal(base.Function):
"""
Assertion non equal: compares argument 2 with argument 3. If they match
it logs text from argument 1 and throws InvalidProfileException. This
exception will abort profile loading.
"""
def __init__(self):
# 3 arguments
super(assertion_non_equal, self).__init__("assertion_non_equal", 3, 3)
def execute(self, args):
if not super(assertion_non_equal, self).execute(args):
return None
if args[1] == args[2]:
log.error("assertion '%s' failed: '%s' == '%s'" % (args[0], args[1], args[2]))
raise InvalidProfileException("Assertion '%s' failed." % args[0])
return None
profiles/functions/function_cpulist2hex.py 0000644 00000000726 15035135374 0015143 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist2hex(base.Function):
"""
Conversion function: converts CPU list to hexadecimal CPU mask
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist2hex, self).__init__("cpulist2hex", 0)
def execute(self, args):
if not super(cpulist2hex, self).execute(args):
return None
return self._cmd.cpulist2hex(",,".join(args))
profiles/functions/__init__.py 0000644 00000000043 15035135374 0012513 0 ustar 00 from .repository import Repository
profiles/functions/function_cpulist_online.py 0000644 00000001213 15035135374 0015710 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_online(base.Function):
"""
Checks whether CPUs from list are online, returns list containing
only online CPUs
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_online, self).__init__("cpulist_online", 0)
def execute(self, args):
if not super(cpulist_online, self).execute(args):
return None
cpus = self._cmd.cpulist_unpack(",".join(args))
online = self._cmd.cpulist_unpack(self._cmd.read_file("/sys/devices/system/cpu/online"))
return ",".join(str(v) for v in cpus if v in online)
profiles/functions/function_calc_isolated_cores.py 0000644 00000003153 15035135374 0016647 0 ustar 00 import os
import glob
import tuned.logs
from . import base
import tuned.consts as consts
log = tuned.logs.get()
class calc_isolated_cores(base.Function):
"""
Calculates and returns isolated cores. The argument specifies how many
cores per socket reserve for housekeeping. If not specified, 1 core
per socket is reserved for housekeeping and the rest is isolated.
"""
def __init__(self):
# max 1 argument
super(calc_isolated_cores, self).__init__("calc_isolated_cores", 1)
def execute(self, args):
if not super(calc_isolated_cores, self).execute(args):
return None
cpus_reserve = 1
if len(args) > 0:
if not args[0].isdecimal() or int(args[0]) < 0:
log.error("invalid argument '%s' for builtin function '%s', it must be non-negative integer" %
(args[0], self._name))
return None
else:
cpus_reserve = int(args[0])
topo = {}
for cpu in glob.iglob(os.path.join(consts.SYSFS_CPUS_PATH, "cpu*")):
cpuid = os.path.basename(cpu)[3:]
if cpuid.isdecimal():
physical_package_id = os.path.join(cpu, "topology/physical_package_id")
# Show no errors when the physical_package_id file does not exist -- the CPU may be offline.
if not os.path.exists(physical_package_id):
log.debug("file '%s' does not exist, cpu%s offline?" % (physical_package_id, cpuid))
continue
socket = self._cmd.read_file(physical_package_id).strip()
if socket.isdecimal():
topo[socket] = topo.get(socket, []) + [cpuid]
isol_cpus = []
for cpus in topo.values():
cpus.sort(key = int)
isol_cpus = isol_cpus + cpus[cpus_reserve:]
isol_cpus.sort(key = int)
return ",".join(isol_cpus)
profiles/functions/function_cpulist2devs.py 0000644 00000000714 15035135374 0015315 0 ustar 00 import tuned.logs
from . import base
log = tuned.logs.get()
class cpulist2devs(base.Function):
"""
Conversion function: converts CPU list to device strings
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist2devs, self).__init__("cpulist2devs", 0)
def execute(self, args):
if not super(cpulist2devs, self).execute(args):
return None
return self._cmd.cpulist2string(self._cmd.cpulist_unpack(",".join(args)), prefix = "cpu")
profiles/functions/function_exec.py 0000644 00000000747 15035135374 0013620 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
class execute(base.Function):
"""
Executes process and substitutes its output.
"""
def __init__(self):
# unlimited number of arguments, min 1 argument (the name of executable)
super(execute, self).__init__("exec", 0, 1)
def execute(self, args):
if not super(execute, self).execute(args):
return None
(ret, out) = self._cmd.execute(args)
if ret == 0:
return out
return None
profiles/functions/function_regex_search_ternary.py 0000644 00000001052 15035135374 0017065 0 ustar 00 import re
from . import base
class regex_search_ternary(base.Function):
"""
Ternary regex operator, it takes arguments in the following form
STR1, REGEX, STR2, STR3
If REGEX matches STR1 (re.search is used), STR2 is returned,
otherwise STR3 is returned
"""
def __init__(self):
# 4 arguments
super(regex_search_ternary, self).__init__("regex_search_ternary", 4, 4)
def execute(self, args):
if not super(regex_search_ternary, self).execute(args):
return None
if re.search(args[1], args[0]):
return args[2]
else:
return args[3]
profiles/functions/function_hex2cpulist.py 0000644 00000000730 15035135374 0015136 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class hex2cpulist(base.Function):
"""
Conversion function: converts hexadecimal CPU mask to CPU list
"""
def __init__(self):
# 1 argument
super(hex2cpulist, self).__init__("hex2cpulist", 1, 1)
def execute(self, args):
if not super(hex2cpulist, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.hex2cpulist(args[0]))
profiles/functions/function_virt_check.py 0000644 00000001123 15035135374 0015002 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
class virt_check(base.Function):
"""
Checks whether running inside virtual machine (VM) or on bare metal.
If running inside VM expands to argument 1, otherwise expands to
argument 2 (even on error).
"""
def __init__(self):
# 2 arguments
super(virt_check, self).__init__("virt_check", 2, 2)
def execute(self, args):
if not super(virt_check, self).execute(args):
return None
(ret, out) = self._cmd.execute(["virt-what"])
if ret == 0 and len(out) > 0:
return args[0]
return args[1]
profiles/functions/repository.py 0000644 00000002404 15035135374 0013176 0 ustar 00 from tuned.utils.plugin_loader import PluginLoader
from . import base
import tuned.logs
import tuned.consts as consts
from tuned.utils.commands import commands
log = tuned.logs.get()
class Repository(PluginLoader):
def __init__(self):
super(Repository, self).__init__()
self._functions = {}
@property
def functions(self):
return self._functions
def _set_loader_parameters(self):
self._namespace = "tuned.profiles.functions"
self._prefix = consts.FUNCTION_PREFIX
self._interface = tuned.profiles.functions.base.Function
def create(self, function_name):
log.debug("creating function %s" % function_name)
function_cls = self.load_plugin(function_name)
function_instance = function_cls()
self._functions[function_name] = function_instance
return function_instance
# loads function from plugin file and return it
# if it is already loaded, just return it, it is not loaded again
def load_func(self, function_name):
if not function_name in self._functions:
return self.create(function_name)
return self._functions[function_name]
def delete(self, function):
assert isinstance(function, self._interface)
log.debug("removing function %s" % function)
for k, v in list(self._functions.items()):
if v == function:
del self._functions[k]
profiles/functions/function_cpulist_present.py 0000644 00000001263 15035135374 0016111 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_present(base.Function):
"""
Checks whether CPUs from list are present, returns list containing
only present CPUs
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_present, self).__init__("cpulist_present", 0)
def execute(self, args):
if not super(cpulist_present, self).execute(args):
return None
cpus = self._cmd.cpulist_unpack(",,".join(args))
present = self._cmd.cpulist_unpack(self._cmd.read_file("/sys/devices/system/cpu/present"))
return ",".join(str(v) for v in sorted(list(set(cpus).intersection(set(present)))))
profiles/functions/function_strip.py 0000644 00000000626 15035135374 0014031 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
class strip(base.Function):
"""
Makes string from all arguments and strip it
"""
def __init__(self):
# unlimited number of arguments, min 1 argument
super(strip, self).__init__("strip", 0, 1)
def execute(self, args):
if not super(strip, self).execute(args):
return None
return "".join(args).strip()
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profiles/functions/function_cpulist_pack.py 0000644 00000001175 15035135374 0015351 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_pack(base.Function):
"""
Conversion function: packs CPU list in form 1,2,3,5 to 1-3,5.
The cpulist_unpack is used as a preprocessor, so it always returns
optimal results. For details about input syntax see cpulist_unpack.
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_pack, self).__init__("cpulist_pack", 0)
def execute(self, args):
if not super(cpulist_pack, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.cpulist_pack(",,".join(args)))
profiles/functions/function_check_net_queue_count.py 0000644 00000001212 15035135374 0017217 0 ustar 00 import tuned.logs
from . import base
log = tuned.logs.get()
class check_net_queue_count(base.Function):
"""
Checks whether the user has specified a queue count for net devices. If
not, return the number of housekeeping CPUs.
"""
def __init__(self):
# 1 argument
super(check_net_queue_count, self).__init__("check_net_queue_count", 1, 1)
def execute(self, args):
if not super(check_net_queue_count, self).execute(args):
return None
if args[0].isdigit():
return args[0]
(ret, out) = self._cmd.execute(["nproc"])
log.warn("net-dev queue count is not correctly specified, setting it to HK CPUs %s" % (out))
return out
profiles/functions/function_cpulist_invert.py 0000644 00000001223 15035135374 0015734 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_invert(base.Function):
"""
Inverts list of CPUs (makes its complement). For the complement it
gets number of online CPUs from the /sys/devices/system/cpu/online,
e.g. system with 4 CPUs (0-3), the inversion of list "0,2,3" will be
"1"
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_invert, self).__init__("cpulist_invert", 0)
def execute(self, args):
if not super(cpulist_invert, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.cpulist_invert(",,".join(args)))
profiles/functions/function_cpulist2hex_invert.py 0000644 00000001160 15035135374 0016523 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist2hex_invert(base.Function):
"""
Converts CPU list to hexadecimal CPU mask and inverts it
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist2hex_invert, self).__init__("cpulist2hex_invert", 0)
def execute(self, args):
if not super(cpulist2hex_invert, self).execute(args):
return None
# current implementation inverts the CPU list and then converts it to hexmask
return self._cmd.cpulist2hex(",".join(str(v) for v in self._cmd.cpulist_invert(",,".join(args))))
profiles/functions/function_cpulist_unpack.py 0000644 00000000777 15035135374 0015723 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
log = tuned.logs.get()
class cpulist_unpack(base.Function):
"""
Conversion function: unpacks CPU list in form 1-3,4 to 1,2,3,4
"""
def __init__(self):
# arbitrary number of arguments
super(cpulist_unpack, self).__init__("cpulist_unpack", 0)
def execute(self, args):
if not super(cpulist_unpack, self).execute(args):
return None
return ",".join(str(v) for v in self._cmd.cpulist_unpack(",,".join(args)))
profiles/functions/functions.py 0000644 00000004142 15035135374 0012770 0 ustar 00 import os
import re
import glob
from . import repository
import tuned.logs
import tuned.consts as consts
from tuned.utils.commands import commands
log = tuned.logs.get()
cmd = commands()
class Functions():
"""
Built-in functions
"""
def __init__(self):
self._repository = repository.Repository()
self._parse_init()
def _parse_init(self, s = ""):
self._cnt = 0
self._str = s
self._len = len(s)
self._stack = []
self._esc = False
def _curr_char(self):
return self._str[self._cnt] if self._cnt < self._len else ""
def _curr_substr(self, _len):
return self._str[self._cnt:self._cnt + _len]
def _push_pos(self, esc):
self._stack.append((esc, self._cnt))
def _sub(self, a, b, s):
self._str = self._str[:a] + s + self._str[b + 1:]
self._len = len(self._str)
self._cnt += len(s) - (b - a + 1)
if self._cnt < 0:
self._cnt = 0
def _process_func(self, _from):
sl = re.split(r'(?<!\\):', self._str[_from:self._cnt])
if sl[0] != "${f":
return
sl = [str(v).replace(r"\:", ":") for v in sl]
if not re.match(r'\w+$', sl[1]):
log.error("invalid function name '%s'" % sl[1])
return
try:
f = self._repository.load_func(sl[1])
except ImportError:
log.error("function '%s' not implemented" % sl[1])
return
s = f.execute(sl[2:])
if s is None:
return
self._sub(_from, self._cnt, s)
def _process(self, s):
self._parse_init(s)
while self._cnt < self._len:
if self._curr_char() == "}":
try:
si = self._stack.pop()
except IndexError:
log.error("invalid variable syntax, non pair '}' in: '%s'" % s)
return self._str
# if not escaped
if not si[0]:
self._process_func(si[1])
elif self._curr_substr(2) == "${":
self._push_pos(self._esc)
if self._curr_char() == "\\":
self._esc = True
else:
self._esc = False
self._cnt += 1
if len(self._stack):
log.error("invalid variable syntax, non pair '{' in: '%s'" % s)
return self._str
def expand(self, s):
if s is None or s == "":
return s
# expand functions and convert all \${f:*} to ${f:*} (unescape)
return re.sub(r'\\(\${f:.*})', r'\1', self._process(s))
profiles/functions/function_cpuinfo_check.py 0000644 00000001763 15035135374 0015473 0 ustar 00 import re
import tuned.logs
from . import base
log = tuned.logs.get()
class cpuinfo_check(base.Function):
"""
Checks regexes against /proc/cpuinfo. Accepts arguments in the
following form: REGEX1, STR1, REGEX2, STR2, ...[, STR_FALLBACK]
If REGEX1 matches something in /proc/cpuinfo it expands to STR1,
if REGEX2 matches it expands to STR2. It stops on the first match,
i.e. if REGEX1 matches, no more regexes are processed. If none
regex matches it expands to STR_FALLBACK. If there is no fallback,
it expands to empty string.
"""
def __init__(self):
# unlimited number of arguments, min 2 arguments
super(cpuinfo_check, self).__init__("cpuinfo_check", 0, 2)
def execute(self, args):
if not super(cpuinfo_check, self).execute(args):
return None
cpuinfo = self._cmd.read_file("/proc/cpuinfo")
for i in range(0, len(args), 2):
if i + 1 < len(args):
if re.search(args[i], cpuinfo, re.MULTILINE):
return args[i + 1]
if len(args) % 2:
return args[-1]
else:
return ""
profiles/functions/function_s2kb.py 0000644 00000000641 15035135374 0013526 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
class s2kb(base.Function):
"""
Conversion function: sectors to kbytes
"""
def __init__(self):
# 1 argument
super(s2kb, self).__init__("s2kb", 1, 1)
def execute(self, args):
if not super(s2kb, self).execute(args):
return None
try:
return str(int(round(int(args[0]) / 2)))
except ValueError:
return None
profiles/functions/function_kb2s.py 0000644 00000000625 15035135374 0013530 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
class kb2s(base.Function):
"""
Conversion function: kbytes to sectors
"""
def __init__(self):
# 1 argument
super(kb2s, self).__init__("kb2s", 1, 1)
def execute(self, args):
if not super(kb2s, self).execute(args):
return None
try:
return str(int(args[0]) * 2)
except ValueError:
return None
profiles/functions/function_assertion.py 0000644 00000001377 15035135374 0014703 0 ustar 00 import os
import tuned.logs
from . import base
from tuned.utils.commands import commands
from tuned.profiles.exceptions import InvalidProfileException
log = tuned.logs.get()
class assertion(base.Function):
"""
Assertion: compares argument 2 with argument 3. If they don't match
it logs text from argument 1 and throws InvalidProfileException. This
exception will abort profile loading.
"""
def __init__(self):
# 3 arguments
super(assertion, self).__init__("assertion", 3, 3)
def execute(self, args):
if not super(assertion, self).execute(args):
return None
if args[1] != args[2]:
log.error("assertion '%s' failed: '%s' != '%s'" % (args[0], args[1], args[2]))
raise InvalidProfileException("Assertion '%s' failed." % args[0])
return None
profiles/functions/base.py 0000644 00000002020 15035135374 0011663 0 ustar 00 import os
import tuned.logs
from tuned.utils.commands import commands
log = tuned.logs.get()
class Function(object):
"""
Built-in function
"""
def __init__(self, name, nargs_max, nargs_min = None):
self._name = name
self._nargs_max = nargs_max
self._nargs_min = nargs_min
self._cmd = commands()
# checks arguments
# nargs_max - maximal number of arguments, there mustn't be more arguments,
# if nargs_max is 0, number of arguments is unlimited
# nargs_min - minimal number of arguments, if not None there must
# be the same number of arguments or more
@classmethod
def _check_args(cls, args, nargs_max, nargs_min = None):
if args is None or nargs_max is None:
return False
la = len(args)
return (nargs_max == 0 or nargs_max >= la) and (nargs_min is None or nargs_min <= la)
def execute(self, args):
if self._check_args(args, self._nargs_max, self._nargs_min):
return True
else:
log.error("invalid number of arguments for builtin function '%s'" % self._name)
return False
profiles/loader.py 0000644 00000010256 15035135374 0010221 0 ustar 00 import tuned.profiles.profile
import tuned.profiles.variables
from tuned.utils.config_parser import ConfigParser, Error
import tuned.consts as consts
import os.path
import collections
import tuned.logs
import re
from tuned.profiles.exceptions import InvalidProfileException
log = tuned.logs.get()
class Loader(object):
"""
Profiles loader.
"""
__slots__ = ["_profile_locator", "_profile_merger", "_profile_factory", "_global_config", "_variables"]
def __init__(self, profile_locator, profile_factory, profile_merger, global_config, variables):
self._profile_locator = profile_locator
self._profile_factory = profile_factory
self._profile_merger = profile_merger
self._global_config = global_config
self._variables = variables
def _create_profile(self, profile_name, config):
return tuned.profiles.profile.Profile(profile_name, config)
@classmethod
def safe_name(cls, profile_name):
return re.match(r'^[a-zA-Z0-9_.-]+$', profile_name)
@property
def profile_locator(self):
return self._profile_locator
def load(self, profile_names):
if type(profile_names) is not list:
profile_names = profile_names.split()
profile_names = list(filter(self.safe_name, profile_names))
if len(profile_names) == 0:
raise InvalidProfileException("No profile or invalid profiles were specified.")
if len(profile_names) > 1:
log.info("loading profiles: %s" % ", ".join(profile_names))
else:
log.info("loading profile: %s" % profile_names[0])
profiles = []
processed_files = []
self._load_profile(profile_names, profiles, processed_files)
if len(profiles) > 1:
final_profile = self._profile_merger.merge(profiles)
else:
final_profile = profiles[0]
final_profile.name = " ".join(profile_names)
if "variables" in final_profile.units:
self._variables.add_from_cfg(final_profile.units["variables"].options)
del(final_profile.units["variables"])
# FIXME hack, do all variable expansions in one place
self._expand_vars_in_devices(final_profile)
self._expand_vars_in_regexes(final_profile)
return final_profile
def _expand_vars_in_devices(self, profile):
for unit in profile.units:
profile.units[unit].devices = self._variables.expand(profile.units[unit].devices)
def _expand_vars_in_regexes(self, profile):
for unit in profile.units:
profile.units[unit].cpuinfo_regex = self._variables.expand(profile.units[unit].cpuinfo_regex)
profile.units[unit].uname_regex = self._variables.expand(profile.units[unit].uname_regex)
def _load_profile(self, profile_names, profiles, processed_files):
for name in profile_names:
filename = self._profile_locator.get_config(name, processed_files)
if filename == "":
continue
if filename is None:
raise InvalidProfileException("Cannot find profile '%s' in '%s'." % (name, list(reversed(self._profile_locator._load_directories))))
processed_files.append(filename)
config = self._load_config_data(filename)
profile = self._profile_factory.create(name, config)
if "include" in profile.options:
include_names = re.split(r"\s*[,;]\s*", self._variables.expand(profile.options.pop("include")))
self._load_profile(include_names, profiles, processed_files)
profiles.append(profile)
def _expand_profile_dir(self, profile_dir, string):
return re.sub(r'(?<!\\)\$\{i:PROFILE_DIR\}', profile_dir, string)
def _load_config_data(self, file_name):
try:
config_obj = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False)
config_obj.optionxform=str
with open(file_name) as f:
config_obj.read_file(f, file_name)
except Error.__bases__ as e:
raise InvalidProfileException("Cannot parse '%s'." % file_name, e)
config = collections.OrderedDict()
dir_name = os.path.dirname(file_name)
for section in list(config_obj.sections()):
config[section] = collections.OrderedDict()
for option in config_obj.options(section):
config[section][option] = config_obj.get(section, option, raw=True)
config[section][option] = self._expand_profile_dir(dir_name, config[section][option])
if config[section].get("script") is not None:
script_path = os.path.join(dir_name, config[section]["script"])
config[section]["script"] = [os.path.normpath(script_path)]
return config
profiles/profile.py 0000644 00000002156 15035135374 0010413 0 ustar 00 import tuned.profiles.unit
import tuned.consts as consts
import collections
class Profile(object):
"""
Representation of a tuning profile.
"""
__slots__ = ["_name", "_options", "_units"]
def __init__(self, name, config):
self._name = name
self._init_options(config)
self._init_units(config)
def _init_options(self, config):
self._options = {}
if consts.PLUGIN_MAIN_UNIT_NAME in config:
self._options = dict(config[consts.PLUGIN_MAIN_UNIT_NAME])
def _init_units(self, config):
self._units = collections.OrderedDict()
for unit_name in config:
if unit_name != consts.PLUGIN_MAIN_UNIT_NAME:
new_unit = self._create_unit(unit_name, config[unit_name])
self._units[unit_name] = new_unit
def _create_unit(self, name, config):
return tuned.profiles.unit.Unit(name, config)
@property
def name(self):
"""
Profile name.
"""
return self._name
@name.setter
def name(self, value):
self._name = value
@property
def units(self):
"""
Units included in the profile.
"""
return self._units
@property
def options(self):
"""
Profile global options.
"""
return self._options
profiles/factory.py 0000644 00000000215 15035135374 0010414 0 ustar 00 import tuned.profiles.profile
class Factory(object):
def create(self, name, config):
return tuned.profiles.profile.Profile(name, config)
logs.py 0000644 00000007373 15035135374 0006102 0 ustar 00 import atexit
import logging
import logging.handlers
import os
import os.path
import inspect
import tuned.consts as consts
import random
import string
import threading
try:
from StringIO import StringIO
except:
from io import StringIO
__all__ = ["get"]
root_logger = None
log_handlers = {}
log_handlers_lock = threading.Lock()
class LogHandler(object):
def __init__(self, handler, stream):
self.handler = handler
self.stream = stream
def _random_string(length):
r = random.SystemRandom()
chars = string.ascii_letters + string.digits
res = ""
for i in range(length):
res += r.choice(chars)
return res
def log_capture_start(log_level):
with log_handlers_lock:
for i in range(10):
token = _random_string(16)
if token not in log_handlers:
break
else:
return None
stream = StringIO()
handler = logging.StreamHandler(stream)
handler.setLevel(log_level)
formatter = logging.Formatter(
"%(levelname)-8s %(name)s: %(message)s")
handler.setFormatter(formatter)
root_logger.addHandler(handler)
log_handler = LogHandler(handler, stream)
log_handlers[token] = log_handler
root_logger.debug("Added log handler %s." % token)
return token
def log_capture_finish(token):
with log_handlers_lock:
try:
log_handler = log_handlers[token]
except KeyError:
return None
content = log_handler.stream.getvalue()
log_handler.stream.close()
root_logger.removeHandler(log_handler.handler)
del log_handlers[token]
root_logger.debug("Removed log handler %s." % token)
return content
def get():
global root_logger
if root_logger is None:
root_logger = logging.getLogger("tuned")
calling_module = inspect.currentframe().f_back
name = calling_module.f_locals["__name__"]
if name == "__main__":
name = "tuned"
return root_logger
elif name.startswith("tuned."):
(root, child) = name.split(".", 1)
child_logger = root_logger.getChild(child)
child_logger.remove_all_handlers()
child_logger.setLevel("NOTSET")
return child_logger
else:
assert False
class TunedLogger(logging.getLoggerClass()):
"""Custom TuneD daemon logger class."""
_formatter = logging.Formatter("%(asctime)s %(levelname)-8s %(name)s: %(message)s")
_console_handler = None
_file_handler = None
def __init__(self, *args, **kwargs):
super(TunedLogger, self).__init__(*args, **kwargs)
self.setLevel(logging.INFO)
self.switch_to_console()
def console(self, msg, *args, **kwargs):
self.log(consts.LOG_LEVEL_CONSOLE, msg, *args, **kwargs)
def switch_to_console(self):
self._setup_console_handler()
self.remove_all_handlers()
self.addHandler(self._console_handler)
def switch_to_file(self, filename = consts.LOG_FILE,
maxBytes = consts.LOG_FILE_MAXBYTES,
backupCount = consts.LOG_FILE_COUNT):
self._setup_file_handler(filename, maxBytes, backupCount)
self.remove_all_handlers()
self.addHandler(self._file_handler)
def remove_all_handlers(self):
_handlers = self.handlers
for handler in _handlers:
self.removeHandler(handler)
@classmethod
def _setup_console_handler(cls):
if cls._console_handler is not None:
return
cls._console_handler = logging.StreamHandler()
cls._console_handler.setFormatter(cls._formatter)
@classmethod
def _setup_file_handler(cls, filename, maxBytes, backupCount):
if cls._file_handler is not None:
return
log_directory = os.path.dirname(filename)
if log_directory == '':
log_directory = '.'
if not os.path.exists(log_directory):
os.makedirs(log_directory)
cls._file_handler = logging.handlers.RotatingFileHandler(
filename, maxBytes = int(maxBytes), backupCount = int(backupCount))
cls._file_handler.setFormatter(cls._formatter)
logging.addLevelName(consts.LOG_LEVEL_CONSOLE, consts.LOG_LEVEL_CONSOLE_NAME)
logging.setLoggerClass(TunedLogger)
atexit.register(logging.shutdown)
monitors/__init__.py 0000644 00000000056 15035135374 0010536 0 ustar 00 from .base import *
from .repository import *
monitors/repository.py 0000644 00000001477 15035135374 0011226 0 ustar 00 import tuned.logs
import tuned.monitors
from tuned.utils.plugin_loader import PluginLoader
log = tuned.logs.get()
__all__ = ["Repository"]
class Repository(PluginLoader):
def __init__(self):
super(Repository, self).__init__()
self._monitors = set()
@property
def monitors(self):
return self._monitors
def _set_loader_parameters(self):
self._namespace = "tuned.monitors"
self._prefix = "monitor_"
self._interface = tuned.monitors.Monitor
def create(self, plugin_name, devices):
log.debug("creating monitor %s" % plugin_name)
monitor_cls = self.load_plugin(plugin_name)
monitor_instance = monitor_cls(devices)
self._monitors.add(monitor_instance)
return monitor_instance
def delete(self, monitor):
assert isinstance(monitor, self._interface)
monitor.cleanup()
self._monitors.remove(monitor)
monitors/monitor_net.py 0000644 00000002223 15035135374 0011332 0 ustar 00 import tuned.monitors
import os
import re
from tuned.utils.nettool import ethcard
class NetMonitor(tuned.monitors.Monitor):
@classmethod
def _init_available_devices(cls):
available = []
for root, dirs, files in os.walk("/sys/devices"):
if root.endswith("/net") and not root.endswith("/virtual/net"):
available += dirs
cls._available_devices = set(available)
for dev in available:
#max_speed = cls._calcspeed(ethcard(dev).get_max_speed())
cls._load[dev] = ['0', '0', '0', '0']
@classmethod
def _calcspeed(cls, speed):
# 0.6 is just a magical constant (empirical value): Typical workload on netcard won't exceed
# that and if it does, then the code is smart enough to adapt it.
# 1024 * 1024 as for MB -> B
# speed / 8 Mb -> MB
return (int) (0.6 * 1024 * 1024 * speed / 8)
@classmethod
def _updateStat(cls, dev):
files = ["rx_bytes", "rx_packets", "tx_bytes", "tx_packets"]
for i,f in enumerate(files):
with open("/sys/class/net/" + dev + "/statistics/" + f) as statfile:
cls._load[dev][i] = statfile.read().strip()
@classmethod
def update(cls):
for device in cls._updating_devices:
cls._updateStat(device)
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repository� r r � /usr/lib/python3.6/__init__.py�<module> s monitors/monitor_load.py 0000644 00000000462 15035135374 0011466 0 ustar 00 import tuned.monitors
class LoadMonitor(tuned.monitors.Monitor):
@classmethod
def _init_available_devices(cls):
cls._available_devices = set(["system"])
@classmethod
def update(cls):
with open("/proc/loadavg") as statfile:
data = statfile.read().split()
cls._load["system"] = float(data[0])
monitors/monitor_disk.py 0000644 00000001566 15035135374 0011507 0 ustar 00 import tuned.monitors
import os
class DiskMonitor(tuned.monitors.Monitor):
_supported_vendors = ["ATA", "SCSI"]
@classmethod
def _init_available_devices(cls):
block_devices = os.listdir("/sys/block")
available = set(filter(cls._is_device_supported, block_devices))
cls._available_devices = available
for d in available:
cls._load[d] = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
@classmethod
def _is_device_supported(cls, device):
vendor_file = "/sys/block/%s/device/vendor" % device
try:
vendor = open(vendor_file).read().strip()
except IOError:
return False
return vendor in cls._supported_vendors
@classmethod
def update(cls):
for device in cls._updating_devices:
cls._update_disk(device)
@classmethod
def _update_disk(cls, dev):
with open("/sys/block/" + dev + "/stat") as statfile:
cls._load[dev] = list(map(int, statfile.read().split()))
monitors/base.py 0000644 00000005552 15035135374 0007717 0 ustar 00 import tuned.logs
log = tuned.logs.get()
__all__ = ["Monitor"]
class Monitor(object):
"""
Base class for all monitors.
Monitors provide data about the running system to Plugin objects, which use the data
to tune system parameters.
Following methods require reimplementation:
- _init_available_devices(cls)
- update(cls)
"""
# class properties
@classmethod
def _init_class(cls):
cls._class_initialized = False
cls._instances = set()
cls._available_devices = set()
cls._updating_devices = set()
cls._load = {}
cls._init_available_devices()
assert isinstance(cls._available_devices, set)
cls._class_initialized = True
log.debug("available devices: %s" % ", ".join(cls._available_devices))
@classmethod
def _init_available_devices(cls):
raise NotImplementedError()
@classmethod
def _update_available_devices(cls):
cls._init_available_devices()
log.debug("available devices updated to: %s"
% ", ".join(cls._available_devices))
@classmethod
def get_available_devices(cls):
return cls._available_devices
@classmethod
def update(cls):
raise NotImplementedError()
@classmethod
def _register_instance(cls, instance):
cls._instances.add(instance)
@classmethod
def _deregister_instance(cls, instance):
cls._instances.remove(instance)
@classmethod
def _refresh_updating_devices(cls):
new_updating = set()
for instance in cls._instances:
new_updating |= instance.devices
cls._updating_devices.clear()
cls._updating_devices.update(new_updating)
@classmethod
def instances(cls):
return cls._instances
# instance properties
def __init__(self, devices = None):
if not hasattr(self, "_class_initialized"):
self._init_class()
assert hasattr(self, "_class_initialized")
self._register_instance(self)
if devices is not None:
self.devices = devices
else:
self.devices = self.get_available_devices()
self.update()
def __del__(self):
try:
self.cleanup()
except:
pass
def cleanup(self):
self._deregister_instance(self)
self._refresh_updating_devices()
@property
def devices(self):
return self._devices
@devices.setter
def devices(self, value):
new_devices = self._available_devices & set(value)
self._devices = new_devices
self._refresh_updating_devices()
def add_device(self, device):
assert (isinstance(device,str) or isinstance(device,unicode))
self._update_available_devices()
if device in self._available_devices:
self._devices.add(device)
self._updating_devices.add(device)
def remove_device(self, device):
assert (isinstance(device,str) or isinstance(device,unicode))
if device in self._devices:
self._devices.remove(device)
self._updating_devices.remove(device)
def get_load(self):
return dict([dev_load for dev_load in list(self._load.items()) if dev_load[0] in self._devices])
def get_device_load(self, device):
return self._load.get(device, None)
utils/__init__.py 0000644 00000000000 15035135374 0010011 0 ustar 00 utils/nettool.py 0000644 00000013106 15035135374 0007751 0 ustar 00 __all__ = ["ethcard"]
import tuned.logs
from subprocess import *
import re
log = tuned.logs.get()
class Nettool:
_advertise_values = { # [ half, full ]
10 : [ 0x001, 0x002 ],
100 : [ 0x004, 0x008 ],
1000 : [ 0x010, 0x020 ],
2500 : [ 0, 0x8000 ],
10000 : [ 0, 0x1000 ],
"auto" : 0x03F
}
_disabled = False
def __init__(self, interface):
self._interface = interface;
self.update()
log.debug("%s: speed %s, full duplex %s, autoneg %s, link %s" % (interface, self.speed, self.full_duplex, self.autoneg, self.link))
log.debug("%s: supports: autoneg %s, modes %s" % (interface, self.supported_autoneg, self.supported_modes))
log.debug("%s: advertises: autoneg %s, modes %s" % (interface, self.advertised_autoneg, self.advertised_modes))
# def __del__(self):
# if self.supported_autoneg:
# self._set_advertise(self._advertise_values["auto"])
def _clean_status(self):
self.speed = 0
self.full_duplex = False
self.autoneg = False
self.link = False
self.supported_modes = []
self.supported_autoneg = False
self.advertised_modes = []
self.advertised_autoneg = False
def _calculate_mode(self, modes):
mode = 0;
for m in modes:
mode += self._advertise_values[m[0]][ 1 if m[1] else 0 ]
return mode
def _set_autonegotiation(self, enable):
if self.autoneg == enable:
return True
if not self.supported_autoneg:
return False
return 0 == call(["ethtool", "-s", self._interface, "autoneg", "on" if enable else "off"], close_fds=True)
def _set_advertise(self, value):
if not self._set_autonegotiation(True):
return False
return 0 == call(["ethtool", "-s", self._interface, "advertise", "0x%03x" % value], close_fds=True)
def get_max_speed(self):
max = 0
for mode in self.supported_modes:
if mode[0] > max: max = mode[0]
if max > 0:
return max
else:
return 1000
def set_max_speed(self):
if self._disabled or not self.supported_autoneg:
return False
#if self._set_advertise(self._calculateMode(self.supported_modes)):
if self._set_advertise(self._advertise_values["auto"]):
self.update()
return True
else:
return False
def set_speed(self, speed):
if self._disabled or not self.supported_autoneg:
return False
mode = 0
for am in self._advertise_values:
if am == "auto": continue
if am <= speed:
mode += self._advertise_values[am][0];
mode += self._advertise_values[am][1];
effective_mode = mode & self._calculate_mode(self.supported_modes)
log.debug("%s: set_speed(%d) - effective_mode 0x%03x" % (self._interface, speed, effective_mode))
if self._set_advertise(effective_mode):
self.update()
return True
else:
return False
def update(self):
if self._disabled:
return
# run ethtool and preprocess output
p_ethtool = Popen(["ethtool", self._interface], \
stdout=PIPE, stderr=PIPE, close_fds=True, \
universal_newlines = True)
p_filter = Popen(["sed", r"s/^\s*//;s/:\s*/:\n/g"], \
stdin=p_ethtool.stdout, stdout=PIPE, \
universal_newlines = True, \
close_fds=True)
output = p_filter.communicate()[0]
errors = p_ethtool.communicate()[1]
if errors != "":
log.warning("%s: some errors were reported by 'ethtool'" % self._interface)
log.debug("%s: %s" % (self._interface, errors.replace("\n", r"\n")))
self._clean_status()
self._disabled = True
return
# parses output - kind of FSM
self._clean_status()
re_speed = re.compile(r"(\d+)")
re_mode = re.compile(r"(\d+)baseT/(Half|Full)")
state = "wait"
for line in output.split("\n"):
if line.endswith(":"):
section = line[:-1]
if section == "Speed": state = "speed"
elif section == "Duplex": state = "duplex"
elif section == "Auto-negotiation": state = "autoneg"
elif section == "Link detected": state = "link"
elif section == "Supported link modes": state = "supported_modes"
elif section == "Supports auto-negotiation": state = "supported_autoneg"
elif section == "Advertised link modes": state = "advertised_modes"
elif section == "Advertised auto-negotiation": state = "advertised_autoneg"
else: state = "wait"
del section
elif state == "speed":
# Try to determine speed. If it fails, assume 1gbit ethernet
try:
self.speed = re_speed.match(line).group(1)
except:
self.speed = 1000
state = "wait"
elif state == "duplex":
self.full_duplex = line == "Full"
state = "wait"
elif state == "autoneg":
self.autoneg = (line == "yes" or line == "on")
state = "wait"
elif state == "link":
self.link = line == "yes"
state = "wait"
elif state == "supported_modes":
# Try to determine supported modes. If it fails, assume 1gibt ethernet fullduplex works
try:
for m in line.split():
(s, d) = re_mode.match(m).group(1,2)
self.supported_modes.append( (int(s), d == "Full") )
del m,s,d
except:
self.supported_modes.append((1000, True))
elif state == "supported_autoneg":
self.supported_autoneg = line == "Yes"
state = "wait"
elif state == "advertised_modes":
# Try to determine advertised modes. If it fails, assume 1gibt ethernet fullduplex works
try:
if line != "Not reported":
for m in line.split():
(s, d) = re_mode.match(m).group(1,2)
self.advertised_modes.append( (int(s), d == "Full") )
del m,s,d
except:
self.advertised_modes.append((1000, True))
elif state == "advertised_autoneg":
self.advertised_autoneg = line == "Yes"
state = "wait"
def ethcard(interface):
if not interface in ethcard.list:
ethcard.list[interface] = Nettool(interface)
return ethcard.list[interface]
ethcard.list = {}
utils/polkit.py 0000644 00000002630 15035135374 0007567 0 ustar 00 import dbus
import tuned.logs
log = tuned.logs.get()
class polkit():
def __init__(self):
self._bus = dbus.SystemBus()
self._proxy = self._bus.get_object('org.freedesktop.PolicyKit1', '/org/freedesktop/PolicyKit1/Authority', follow_name_owner_changes = True)
self._authority = dbus.Interface(self._proxy, dbus_interface='org.freedesktop.PolicyKit1.Authority')
def check_authorization(self, sender, action_id):
"""Check authorization, return codes:
1 - authorized
2 - polkit error, but authorized with fallback method
0 - unauthorized
-1 - polkit error and unauthorized by the fallback method
-2 - polkit error and unable to use the fallback method
"""
if sender is None or action_id is None:
return False
details = {}
flags = 1 # AllowUserInteraction flag
cancellation_id = "" # No cancellation id
subject = ("system-bus-name", {"name" : sender})
try:
ret = self._authority.CheckAuthorization(subject, action_id, details, flags, cancellation_id)[0]
except (dbus.exceptions.DBusException, ValueError) as e:
log.error("error querying polkit: %s" % e)
# No polkit or polkit error, fallback to always allow root
try:
uid = self._bus.get_unix_user(sender)
except dbus.exceptions.DBusException as e:
log.error("error using fallback authorization method: %s" % e)
return -2
if uid == 0:
return 2
else:
return -1
return 1 if ret else 0
utils/__pycache__/commands.cpython-36.opt-1.pyc 0000644 00000037457 15035135374 0015330 0 ustar 00 3
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H utils/global_config.py 0000644 00000006225 15035135375 0011057 0 ustar 00 import tuned.logs
from tuned.utils.config_parser import ConfigParser, Error
from tuned.exceptions import TunedException
import tuned.consts as consts
from tuned.utils.commands import commands
__all__ = ["GlobalConfig"]
log = tuned.logs.get()
class GlobalConfig():
def __init__(self,config_file = consts.GLOBAL_CONFIG_FILE):
self._cfg = {}
self.load_config(file_name=config_file)
self._cmd = commands()
@staticmethod
def get_global_config_spec():
"""
Easy validation mimicking configobj
Returns two dicts, first with default values (default None)
global_default[consts.CFG_SOMETHING] = consts.CFG_DEF_SOMETHING or None
second with configobj function for value type (default "get" for string, others eg getboolean, getint)
global_function[consts.CFG_SOMETHING] = consts.CFG_FUNC_SOMETHING or get
}
"""
options = [opt for opt in dir(consts)
if opt.startswith("CFG_") and
not opt.startswith("CFG_FUNC_") and
not opt.startswith("CFG_DEF_")]
global_default = dict((getattr(consts, opt), getattr(consts, "CFG_DEF_" + opt[4:], None)) for opt in options)
global_function = dict((getattr(consts, opt), getattr(consts, "CFG_FUNC_" + opt[4:], "get")) for opt in options)
return global_default, global_function
def load_config(self, file_name = consts.GLOBAL_CONFIG_FILE):
"""
Loads global configuration file.
"""
log.debug("reading and parsing global configuration file '%s'" % file_name)
try:
config_parser = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False)
config_parser.optionxform = str
with open(file_name) as f:
config_parser.read_string("[" + consts.MAGIC_HEADER_NAME + "]\n" + f.read(), file_name)
self._cfg, _global_config_func = self.get_global_config_spec()
for option in config_parser.options(consts.MAGIC_HEADER_NAME):
if option in self._cfg:
try:
func = getattr(config_parser, _global_config_func[option])
self._cfg[option] = func(consts.MAGIC_HEADER_NAME, option)
except Error:
raise TunedException("Global TuneD configuration file '%s' is not valid."
% file_name)
else:
log.info("Unknown option '%s' in global config file '%s'." % (option, file_name))
self._cfg[option] = config_parser.get(consts.MAGIC_HEADER_NAME, option, raw=True)
except IOError as e:
raise TunedException("Global TuneD configuration file '%s' not found." % file_name)
except Error as e:
raise TunedException("Error parsing global TuneD configuration file '%s'." % file_name)
def get(self, key, default = None):
return self._cfg.get(key, default)
def get_bool(self, key, default = None):
if self._cmd.get_bool(self.get(key, default)) == "1":
return True
return False
def get_int(self, key, default = 0):
i = self._cfg.get(key, default)
if i:
if isinstance(i, int):
return i
else:
return int(i, 0)
return default
def set(self, key, value):
self._cfg[key] = value
def get_size(self, key, default = None):
val = self.get(key)
if val is None:
return default
ret = self._cmd.get_size(val)
if ret is None:
log.error("Error parsing value '%s', using '%s'." %(val, default))
return default
else:
return ret
utils/commands.py 0000644 00000040356 15035135375 0010076 0 ustar 00 import errno
import hashlib
import tuned.logs
import copy
import os
import shutil
import tuned.consts as consts
import re
from subprocess import *
from tuned.exceptions import TunedException
log = tuned.logs.get()
class commands:
def __init__(self, logging = True):
self._logging = logging
def _error(self, msg):
if self._logging:
log.error(msg)
def _debug(self, msg):
if self._logging:
log.debug(msg)
def get_bool(self, value):
v = str(value).upper().strip()
return {"Y":"1", "YES":"1", "T":"1", "TRUE":"1", "N":"0", "NO":"0", "F":"0", "FALSE":"0"}.get(v, value)
def remove_ws(self, s):
return re.sub(r'\s+', ' ', str(s)).strip()
def unquote(self, v):
return re.sub("^\"(.*)\"$", r"\1", v)
# escape escape character (by default '\')
def escape(self, s, what_escape = "\\", escape_by = "\\"):
return s.replace(what_escape, "%s%s" % (escape_by, what_escape))
# clear escape characters (by default '\')
def unescape(self, s, escape_char = "\\"):
return s.replace(escape_char, "")
# add spaces to align s2 to pos, returns resulting string: s1 + spaces + s2
def align_str(self, s1, pos, s2):
return s1 + " " * (pos - len(s1)) + s2
# convert dictionary 'd' to flat list and return it
# it uses sort on the dictionary items to return consistent results
# for directories with different inserte/delete history
def dict2list(self, d):
l = []
if d is not None:
for i in sorted(d.items()):
l += list(i)
return l
# Compile regex to speedup multiple_re_replace or re_lookup
def re_lookup_compile(self, d):
if d is None:
return None
return re.compile("(%s)" % ")|(".join(list(d.keys())))
# Do multiple regex replaces in 's' according to lookup table described by
# dictionary 'd', e.g.: d = {"re1": "replace1", "re2": "replace2", ...}
# r can be regex precompiled by re_lookup_compile for speedup
def multiple_re_replace(self, d, s, r = None, flags = 0):
if d is None:
if r is None:
return s
else:
if len(d) == 0 or s is None:
return s
if r is None:
r = self.re_lookup_compile(d)
return r.sub(lambda mo: list(d.values())[mo.lastindex - 1], s, flags)
# Do regex lookup on 's' according to lookup table described by
# dictionary 'd' and return corresponding value from the dictionary,
# e.g.: d = {"re1": val1, "re2": val2, ...}
# r can be regex precompiled by re_lookup_compile for speedup
def re_lookup(self, d, s, r = None):
if len(d) == 0 or s is None:
return None
if r is None:
r = self.re_lookup_compile(d)
mo = r.search(s)
if mo:
return list(d.values())[mo.lastindex - 1]
return None
def write_to_file(self, f, data, makedir = False, no_error = False):
"""Write data to a file.
Parameters:
f -- filename where to write
data -- data to write
makedir -- if True and the path doesn't exist, it will be created
no_error -- if True errors are silenced, it can be also list of ignored errnos
Return:
bool -- True on success
"""
self._debug("Writing to file: '%s' < '%s'" % (f, data))
if makedir:
d = os.path.dirname(f)
if os.path.isdir(d):
makedir = False
try:
if makedir:
os.makedirs(d)
fd = open(f, "w")
fd.write(str(data))
fd.close()
rc = True
except (OSError, IOError) as e:
rc = False
if isinstance(no_error, bool) and not no_error or \
isinstance(no_error, list) and e.errno not in no_error:
self._error("Writing to file '%s' error: '%s'" % (f, e))
return rc
def read_file(self, f, err_ret = "", no_error = False):
old_value = err_ret
try:
f = open(f, "r")
old_value = f.read()
f.close()
except (OSError,IOError) as e:
if not no_error:
self._error("Error when reading file '%s': '%s'" % (f, e))
self._debug("Read data from file: '%s' > '%s'" % (f, old_value))
return old_value
def rmtree(self, f, no_error = False):
self._debug("Removing tree: '%s'" % f)
if os.path.exists(f):
try:
shutil.rmtree(f, no_error)
except OSError as error:
if not no_error:
log.error("cannot remove tree '%s': '%s'" % (f, str(error)))
return False
return True
def unlink(self, f, no_error = False):
self._debug("Removing file: '%s'" % f)
if os.path.exists(f):
try:
os.unlink(f)
except OSError as error:
if not no_error:
log.error("cannot remove file '%s': '%s'" % (f, str(error)))
return False
return True
def rename(self, src, dst, no_error = False):
self._debug("Renaming file '%s' to '%s'" % (src, dst))
try:
os.rename(src, dst)
except OSError as error:
if not no_error:
log.error("cannot rename file '%s' to '%s': '%s'" % (src, dst, str(error)))
return False
return True
def copy(self, src, dst, no_error = False):
try:
log.debug("copying file '%s' to '%s'" % (src, dst))
shutil.copy(src, dst)
return True
except IOError as e:
if not no_error:
log.error("cannot copy file '%s' to '%s': %s" % (src, dst, e))
return False
def replace_in_file(self, f, pattern, repl):
data = self.read_file(f)
if len(data) <= 0:
return False;
return self.write_to_file(f, re.sub(pattern, repl, data, flags = re.MULTILINE))
# do multiple replaces in file 'f' by using dictionary 'd',
# e.g.: d = {"re1": val1, "re2": val2, ...}
def multiple_replace_in_file(self, f, d):
data = self.read_file(f)
if len(data) <= 0:
return False;
return self.write_to_file(f, self.multiple_re_replace(d, data, flags = re.MULTILINE))
# makes sure that options from 'd' are set to values from 'd' in file 'f',
# when needed it edits options or add new options if they don't
# exist and 'add' is set to True, 'd' has the following form:
# d = {"option_1": value_1, "option_2": value_2, ...}
def add_modify_option_in_file(self, f, d, add = True):
data = self.read_file(f)
for opt in d:
o = str(opt)
v = str(d[opt])
if re.search(r"\b" + o + r"\s*=.*$", data, flags = re.MULTILINE) is None:
if add:
if len(data) > 0 and data[-1] != "\n":
data += "\n"
data += "%s=\"%s\"\n" % (o, v)
else:
data = re.sub(r"\b(" + o + r"\s*=).*$", r"\1" + "\"" + self.escape(v) + "\"", data, flags = re.MULTILINE)
return self.write_to_file(f, data)
# calcualtes md5sum of file 'f'
def md5sum(self, f):
data = self.read_file(f)
return hashlib.md5(str(data).encode("utf-8")).hexdigest()
# calcualtes sha256sum of file 'f'
def sha256sum(self, f):
data = self.read_file(f)
return hashlib.sha256(str(data).encode("utf-8")).hexdigest()
# returns machine ID or empty string "" in case of error
def get_machine_id(self, no_error = True):
return self.read_file(consts.MACHINE_ID_FILE, no_error).strip()
# "no_errors" can be list of return codes not treated as errors, if 0 is in no_errors, it means any error
# returns (retcode, out), where retcode is exit code of the executed process or -errno if
# OSError or IOError exception happened
def execute(self, args, shell = False, cwd = None, env = {}, no_errors = [], return_err = False):
retcode = 0
_environment = os.environ.copy()
_environment["LC_ALL"] = "C"
_environment.update(env)
self._debug("Executing %s." % str(args))
out = ""
err_msg = None
try:
proc = Popen(args, stdout = PIPE, stderr = PIPE, \
env = _environment, \
shell = shell, cwd = cwd, \
close_fds = True, \
universal_newlines = True)
out, err = proc.communicate()
retcode = proc.returncode
if retcode and not retcode in no_errors and not 0 in no_errors:
err_out = err[:-1]
if len(err_out) == 0:
err_out = out[:-1]
err_msg = "Executing '%s' error: %s" % (' '.join(args), err_out)
if not return_err:
self._error(err_msg)
except (OSError, IOError) as e:
retcode = -e.errno if e.errno is not None else -1
if not abs(retcode) in no_errors and not 0 in no_errors:
err_msg = "Executing '%s' error: %s" % (' '.join(args), e)
if not return_err:
self._error(err_msg)
if return_err:
return retcode, out, err_msg
else:
return retcode, out
# Helper for parsing kernel options like:
# [always] never
# It will return 'always'
def get_active_option(self, options, dosplit = True):
m = re.match(r'.*\[([^\]]+)\].*', options)
if m:
return m.group(1)
if dosplit:
return options.split()[0]
return options
# Checks whether CPU is online
def is_cpu_online(self, cpu):
scpu = str(cpu)
# CPU0 is always online
return cpu == "0" or self.read_file("/sys/devices/system/cpu/cpu%s/online" % scpu, no_error = True).strip() == "1"
# Converts hexadecimal CPU mask to CPU list
def hex2cpulist(self, mask):
if mask is None:
return None
mask = str(mask).replace(",", "")
try:
m = int(mask, 16)
except ValueError:
log.error("invalid hexadecimal mask '%s'" % str(mask))
return []
return self.bitmask2cpulist(m)
# Converts an integer bitmask to a list of cpus (e.g. [0,3,4])
def bitmask2cpulist(self, mask):
cpu = 0
cpus = []
while mask > 0:
if mask & 1:
cpus.append(cpu)
mask >>= 1
cpu += 1
return cpus
# Unpacks CPU list, i.e. 1-3 will be converted to 1, 2, 3, supports
# hexmasks that needs to be prefixed by "0x". Hexmasks can have commas,
# which will be removed. If combining hexmasks with CPU list they need
# to be separated by ",,", e.g.: 0-3, 0xf,, 6. It also supports negation
# cpus by specifying "^" or "!", e.g.: 0-5, ^3, will output the list as
# "0,1,2,4,5" (excluding 3). Note: negation supports only cpu numbers.
# If "strip_chars" is not None and l is not list, we try strip characters.
# It should be string with list of chars that is send to string.strip method
# Default is english single and double quotes ("') rhbz#1891036
def cpulist_unpack(self, l, strip_chars='\'"'):
rl = []
if l is None:
return l
ll = l
if type(ll) is not list:
if strip_chars is not None:
ll = str(ll).strip(strip_chars)
ll = str(ll).split(",")
ll2 = []
negation_list = []
hexmask = False
hv = ""
# Remove commas from hexmasks
for v in ll:
sv = str(v)
if hexmask:
if len(sv) == 0:
hexmask = False
ll2.append(hv)
hv = ""
else:
hv += sv
else:
if sv[0:2].lower() == "0x":
hexmask = True
hv = sv
elif sv and (sv[0] == "^" or sv[0] == "!"):
nl = sv[1:].split("-")
try:
if (len(nl) > 1):
negation_list += list(range(
int(nl[0]),
int(nl[1]) + 1
)
)
else:
negation_list.append(int(sv[1:]))
except ValueError:
return []
else:
if len(sv) > 0:
ll2.append(sv)
if len(hv) > 0:
ll2.append(hv)
for v in ll2:
vl = v.split("-")
if v[0:2].lower() == "0x":
rl += self.hex2cpulist(v)
else:
try:
if len(vl) > 1:
rl += list(range(int(vl[0]), int(vl[1]) + 1))
else:
rl.append(int(vl[0]))
except ValueError:
return []
cpu_list = sorted(list(set(rl)))
# Remove negated cpus after expanding
for cpu in negation_list:
if cpu in cpu_list:
cpu_list.remove(cpu)
return cpu_list
# Packs CPU list, i.e. 1, 2, 3 will be converted to 1-3. It unpacks the
# CPU list through cpulist_unpack first, so see its description about the
# details of the input syntax
def cpulist_pack(self, l):
l = self.cpulist_unpack(l)
if l is None or len(l) == 0:
return l
i = 0
j = i
rl = []
while i + 1 < len(l):
if l[i + 1] - l[i] != 1:
if j != i:
rl.append(str(l[j]) + "-" + str(l[i]))
else:
rl.append(str(l[i]))
j = i + 1
i += 1
if j + 1 < len(l):
rl.append(str(l[j]) + "-" + str(l[-1]))
else:
rl.append(str(l[-1]))
return rl
# Inverts CPU list (i.e. makes its complement)
def cpulist_invert(self, l):
cpus = self.cpulist_unpack(l)
online = self.cpulist_unpack(self.read_file("/sys/devices/system/cpu/online"))
return list(set(online) - set(cpus))
# Converts CPU list to hexadecimal CPU mask
def cpulist2hex(self, l):
if l is None:
return None
ul = self.cpulist_unpack(l)
if ul is None:
return None
m = self.cpulist2bitmask(ul)
s = "%x" % m
ls = len(s)
if ls % 8 != 0:
ls += 8 - ls % 8
s = s.zfill(ls)
return ",".join(s[i:i + 8] for i in range(0, len(s), 8))
def cpulist2bitmask(self, l):
m = 0
for v in l:
m |= pow(2, v)
return m
def cpulist2string(self, l, prefix = ""):
return ",".join((prefix + str(v)) for v in l)
# Converts string s consisting of "dev1,dev2,dev3,..." to list ["dev1", "dev2, "dev3", ...],
# whitespaces are ignored, cpu lists are supported with the prefix "cpulist:", e.g.
# "cpulist:0-2,4" is converted to ["cpu0", "cpu1", "cpu2", "cpu4"]. If device name starts
# with "cpulist:" write it as "cpulist:cpulist:". Escape commas in name with the "\,".
def devstr2devs(self, s):
if s[0:8].lower() == "cpulist:":
s = s[8:]
if s[0:8].lower() != "cpulist:":
return [("cpu" + str(v)) for v in self.cpulist_unpack(s)]
l = re.split(r"\s*(?<!\\),\s*", s)
return [str(v).replace(r"\,", ",") for v in l]
# Do not make balancing on patched Python 2 interpreter (rhbz#1028122).
# It means less CPU usage on patchet interpreter. On non-patched interpreter
# it is not allowed to sleep longer than 50 ms.
def wait(self, terminate, time):
try:
return terminate.wait(time, False)
except:
return terminate.wait(time)
def get_size(self, s):
s = str(s).strip().upper()
for unit in ["KB", "MB", "GB", ""]:
unit_ix = s.rfind(unit)
if unit_ix == -1:
continue
try:
val = int(s[:unit_ix])
u = s[unit_ix:]
if u == "KB":
val *= 1024
elif u == "MB":
val *= 1024 * 1024
elif u == "GB":
val *= 1024 * 1024 * 1024
elif u != "":
val = None
return val
except ValueError:
return None
def get_active_profile(self):
profile_name = ""
mode = ""
try:
with open(consts.ACTIVE_PROFILE_FILE, "r") as f:
profile_name = f.read().strip()
except IOError as e:
if e.errno != errno.ENOENT:
raise TunedException("Failed to read active profile: %s" % e)
except (OSError, EOFError) as e:
raise TunedException("Failed to read active profile: %s" % e)
try:
with open(consts.PROFILE_MODE_FILE, "r") as f:
mode = f.read().strip()
if mode not in ["", consts.ACTIVE_PROFILE_AUTO, consts.ACTIVE_PROFILE_MANUAL]:
raise TunedException("Invalid value in file %s." % consts.PROFILE_MODE_FILE)
except IOError as e:
if e.errno != errno.ENOENT:
raise TunedException("Failed to read profile mode: %s" % e)
except (OSError, EOFError) as e:
raise TunedException("Failed to read profile mode: %s" % e)
if mode == "":
manual = None
else:
manual = mode == consts.ACTIVE_PROFILE_MANUAL
if profile_name == "":
profile_name = None
return (profile_name, manual)
def save_active_profile(self, profile_name, manual):
try:
with open(consts.ACTIVE_PROFILE_FILE, "w") as f:
if profile_name is not None:
f.write(profile_name + "\n")
except (OSError,IOError) as e:
raise TunedException("Failed to save active profile: %s" % e.strerror)
try:
with open(consts.PROFILE_MODE_FILE, "w") as f:
mode = consts.ACTIVE_PROFILE_MANUAL if manual else consts.ACTIVE_PROFILE_AUTO
f.write(mode + "\n")
except (OSError,IOError) as e:
raise TunedException("Failed to save profile mode: %s" % e.strerror)
def get_post_loaded_profile(self):
profile_name = ""
try:
with open(consts.POST_LOADED_PROFILE_FILE, "r") as f:
profile_name = f.read().strip()
except IOError as e:
if e.errno != errno.ENOENT:
raise TunedException("Failed to read the active post-loaded profile: %s" % e)
except (OSError, EOFError) as e:
raise TunedException("Failed to read the active post-loaded profile: %s" % e)
if profile_name == "":
profile_name = None
return profile_name
def save_post_loaded_profile(self, profile_name):
try:
with open(consts.POST_LOADED_PROFILE_FILE, "w") as f:
if profile_name is not None:
f.write(profile_name + "\n")
except (OSError,IOError) as e:
raise TunedException("Failed to save the active post-loaded profile: %s" % e.strerror)
# Translates characters in 'text' from 'source_chars' to 'dest_chars'
def tr(self, text, source_chars, dest_chars):
try:
trans = str.maketrans(source_chars, dest_chars)
except AttributeError:
import string
trans = string.maketrans(source_chars, dest_chars)
return text.translate(trans)
# Checks if name contains only valid characters and has valid length or is empty string or None
def is_valid_name(self, name):
return not name or (all(c in consts.NAMES_ALLOWED_CHARS for c in name) and len(name) <= consts.NAMES_MAX_LENGTH)
utils/profile_recommender.py 0000644 00000013463 15035135375 0012314 0 ustar 00 import os
import re
import errno
import procfs
import subprocess
from tuned.utils.config_parser import ConfigParser, Error
try:
import syspurpose.files
have_syspurpose = True
except:
have_syspurpose = False
import tuned.consts as consts
import tuned.logs
from tuned.utils.commands import commands
log = tuned.logs.get()
class ProfileRecommender:
def __init__(self, is_hardcoded = False):
self._is_hardcoded = is_hardcoded
self._commands = commands()
self._chassis_type = None
def recommend(self):
profile = consts.DEFAULT_PROFILE
if self._is_hardcoded:
return profile
has_root = os.geteuid() == 0
if not has_root:
log.warning("Profile recommender is running without root privileges. Profiles with virt recommendation condition will be omitted.")
matching = self.process_config(consts.RECOMMEND_CONF_FILE,
has_root=has_root)
if matching is not None:
return matching
files = {}
for directory in consts.RECOMMEND_DIRECTORIES:
contents = []
try:
contents = os.listdir(directory)
except OSError as e:
if e.errno != errno.ENOENT:
log.error("error accessing %s: %s" % (directory, e))
for name in contents:
path = os.path.join(directory, name)
files[name] = path
for name in sorted(files.keys()):
path = files[name]
matching = self.process_config(path, has_root=has_root)
if matching is not None:
return matching
return profile
def process_config(self, fname, has_root=True):
matching_profile = None
syspurpose_error_logged = False
try:
if not os.path.isfile(fname):
return None
config = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False)
config.optionxform = str
with open(fname) as f:
config.read_file(f, fname)
for section in config.sections():
match = True
for option in config.options(section):
value = config.get(section, option, raw=True)
if value == "":
value = r"^$"
if option == "virt":
if not has_root:
match = False
break
if not re.match(value,
self._commands.execute(["virt-what"])[1], re.S):
match = False
elif option == "system":
if not re.match(value,
self._commands.read_file(
consts.SYSTEM_RELEASE_FILE,
no_error = True), re.S):
match = False
elif option[0] == "/":
if not os.path.exists(option) or not re.match(value,
self._commands.read_file(option), re.S):
match = False
elif option[0:7] == "process":
ps = procfs.pidstats()
ps.reload_threads()
if len(ps.find_by_regex(re.compile(value))) == 0:
match = False
elif option == "chassis_type":
chassis_type = self._get_chassis_type()
if not re.match(value, chassis_type, re.IGNORECASE):
match = False
elif option == "syspurpose_role":
role = ""
if have_syspurpose:
s = syspurpose.files.SyspurposeStore(
syspurpose.files.USER_SYSPURPOSE,
raise_on_error = True)
try:
s.read_file()
role = s.contents["role"]
except (IOError, OSError, KeyError) as e:
if hasattr(e, "errno") and e.errno != errno.ENOENT:
log.error("Failed to load the syspurpose\
file: %s" % e)
else:
if not syspurpose_error_logged:
log.error("Failed to process 'syspurpose_role' in '%s'\
, the syspurpose module is not available" % fname)
syspurpose_error_logged = True
if re.match(value, role, re.IGNORECASE) is None:
match = False
if match:
# remove the ",.*" suffix
r = re.compile(r",[^,]*$")
matching_profile = r.sub("", section)
break
except (IOError, OSError, Error) as e:
log.error("error processing '%s', %s" % (fname, e))
return matching_profile
def _get_chassis_type(self):
if self._chassis_type is not None:
log.debug("returning cached chassis type '%s'" % self._chassis_type)
return self._chassis_type
# Check DMI sysfs first
# Based on SMBios 3.3.0 specs (https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.3.0.pdf)
DMI_CHASSIS_TYPES = ["", "Other", "Unknown", "Desktop", "Low Profile Desktop", "Pizza Box", "Mini Tower", "Tower",
"Portable", "Laptop", "Notebook", "Hand Held", "Docking Station", "All In One", "Sub Notebook",
"Space-saving", "Lunch Box", "Main Server Chassis", "Expansion Chassis", "Sub Chassis",
"Bus Expansion Chassis", "Peripheral Chassis", "RAID Chassis", "Rack Mount Chassis", "Sealed-case PC",
"Multi-system", "CompactPCI", "AdvancedTCA", "Blade", "Blade Enclosing", "Tablet",
"Convertible", "Detachable", "IoT Gateway", "Embedded PC", "Mini PC", "Stick PC"]
try:
with open('/sys/devices/virtual/dmi/id/chassis_type', 'r') as sysfs_chassis_type:
chassis_type_id = int(sysfs_chassis_type.read())
self._chassis_type = DMI_CHASSIS_TYPES[chassis_type_id]
except IndexError:
log.error("Unknown chassis type id read from dmi sysfs: %d" % chassis_type_id)
except (OSError, IOError) as e:
log.warn("error accessing dmi sysfs file: %s" % e)
if self._chassis_type:
log.debug("chassis type - %s" % self._chassis_type)
return self._chassis_type
# Fallback - try parsing dmidecode output
try:
p_dmi = subprocess.Popen(['dmidecode', '-s', 'chassis-type'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
close_fds=True)
(dmi_output, dmi_error) = p_dmi.communicate()
if p_dmi.returncode:
log.error("dmidecode finished with error (ret %d): '%s'" % (p_dmi.returncode, dmi_error))
else:
self._chassis_type = dmi_output.strip().decode()
except (OSError, IOError) as e:
log.warn("error executing dmidecode tool : %s" % e)
if not self._chassis_type:
log.debug("could not determine chassis type.")
self._chassis_type = ""
else:
log.debug("chassis type - %s" % self._chassis_type)
return self._chassis_type
utils/plugin_loader.py 0000644 00000003403 15035135375 0011111 0 ustar 00 import tuned.logs
import os
__all__ = ["PluginLoader"]
log = tuned.logs.get()
class PluginLoader(object):
__slots__ = ["_namespace", "_prefix", "_interface"]
def _set_loader_parameters(self):
"""
This method has to be implemented in child class and should
set _namespace, _prefix, and _interface member attributes.
"""
raise NotImplementedError()
def __init__(self):
super(PluginLoader, self).__init__()
self._namespace = None
self._prefix = None
self._interface = None
self._set_loader_parameters()
assert type(self._namespace) is str
assert type(self._prefix) is str
assert type(self._interface) is type and issubclass(self._interface, object)
def load_plugin(self, plugin_name):
assert type(plugin_name) is str
module_name = "%s.%s%s" % (self._namespace, self._prefix, plugin_name)
return self._get_class(module_name)
def _get_class(self, module_name):
log.debug("loading module %s" % module_name)
module = __import__(module_name)
path = module_name.split(".")
path.pop(0)
while len(path) > 0:
module = getattr(module, path.pop(0))
for name in module.__dict__:
cls = getattr(module, name)
if type(cls) is type and issubclass(cls, self._interface):
return cls
raise ImportError("Cannot find the plugin class.")
def load_all_plugins(self):
plugins_package = __import__(self._namespace)
plugin_clss = []
for module_name in os.listdir(plugins_package.plugins.__path__[0]):
try:
module_name = os.path.splitext(module_name)[0]
if not module_name.startswith("plugin_"):
continue
plugin_class = self._get_class(
"%s.%s" % (self._namespace, module_name)
)
if plugin_class not in plugin_clss:
plugin_clss.append(plugin_class)
except ImportError:
pass
return plugin_clss
utils/config_parser.py 0000644 00000003037 15035135375 0011111 0 ustar 00 # ConfigParser wrapper providing compatibility layer for python 2.7/3
try:
python3 = True
import configparser as cp
except ImportError:
python3 = False
import ConfigParser as cp
from StringIO import StringIO
import re
class Error(cp.Error):
pass
if python3:
class ConfigParser(cp.ConfigParser):
pass
else:
class ConfigParser(cp.ConfigParser):
def __init__(self, delimiters=None, inline_comment_prefixes=None, strict=False, *args, **kwargs):
delims = "".join(list(delimiters))
# REs taken from the python-2.7 ConfigParser
self.OPTCRE = re.compile(
r'(?P<option>[^' + delims + r'\s][^' + delims + ']*)'
r'\s*(?P<vi>[' + delims + r'])\s*'
r'(?P<value>.*)$'
)
self.OPTCRE_NV = re.compile(
r'(?P<option>[^' + delims + r'\s][^' + delims + ']*)'
r'\s*(?:'
r'(?P<vi>[' + delims + r'])\s*'
r'(?P<value>.*))?$'
)
cp.ConfigParser.__init__(self, *args, **kwargs)
self._inline_comment_prefixes = inline_comment_prefixes or []
self._re = re.compile(r"\s+(%s).*" % ")|(".join(list(self._inline_comment_prefixes)))
def read_string(self, string, source="<string>"):
sfile = StringIO(string)
self.read_file(sfile, source)
def readfp(self, fp, filename=None):
cp.ConfigParser.readfp(self, fp, filename)
# remove inline comments
all_sections = [self._defaults]
all_sections.extend(self._sections.values())
for options in all_sections:
for name, val in options.items():
options[name] = self._re.sub("", val)
def read_file(self, f, source="<???>"):
self.readfp(f, source)
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admin/exceptions.py 0000644 00000000137 15035135375 0010377 0 ustar 00 import tuned.exceptions
class TunedAdminDBusException(tuned.exceptions.TunedException):
pass
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z Admin._dbus_get_active_profilec C s | j j� \}}|S )N)r �get_active_profile)r r+ �manualr" r" r# �_get_active_profile| s zAdmin._get_active_profilec C s. | j j� \}}|d kr |d k }|r(tjS tjS )N)r rL r ZACTIVE_PROFILE_MANUALZACTIVE_PROFILE_AUTO)r r@ rM r" r" r# �_get_profile_mode� s zAdmin._get_profile_modec C s | j j� }|dkrd }|S )Nr
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z#Admin._dbus_get_post_loaded_profilec C s | j j� }|S )N)r Zget_post_loaded_profile)r r+ r" r" r# �_get_post_loaded_profile� s
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zAdmin._print_profile_namec C s |rt d| � d S )Nz Current post-loaded profile: %s)r& )r r+ r" r" r# �_print_post_loaded_profile� s z Admin._print_post_loaded_profilec C s4 | j � }| j|�}|r(| j� }| j|� | jj|�S )N)rK rY rQ rZ r rF )r rJ r= rP r" r" r# rE � s
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| j j� }|r(td� n0td� td� td� td� td� td� tdtj � | j j|�S ) NzIVerification succeeded, current system settings match the preset profile.zLVerification failed, current system settings differ from the preset profile.z=You can mostly fix this by restarting the TuneD daemon, e.g.:z systemctl restart tuned�orz service tuned restartzNSometimes (if some plugins like bootloader are used) a reboot may be required.z&See TuneD log file ('%s') for details.)r Z verify_profile_ignore_missingZverify_profiler& r ZLOG_FILErF )r �ignore_missingrb r" r" r# �_action_dbus_verify_profilee s
z!Admin._action_dbus_verify_profilec C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r| r" r" r# �_action_verify_profilev s z Admin._action_verify_profilec C s: d}| j j| j|�| _| j j� }|s.| jd� | j j|�S )Nrj rk z Cannot disable active profile.r> )r rp r r Zoffr rF )r r rb r" r" r# �_action_dbus_offz s
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z'Admin._action_dbus_instance_get_devicesc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r� r" r" r# � _action_instance_get_devices� s z"Admin._action_instance_get_devicesN)r
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| j d�S )N�recommend_profile)r/ )r r r r rC � s z DBusController.recommend_profilec C s
| j d�S )N�verify_profile)r/ )r r r r rD � s z DBusController.verify_profilec C s
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z Admin._dbus_get_active_profilec C s | j j� \}}|S )N)r �get_active_profile)r r+ �manualr" r" r# �_get_active_profile| s zAdmin._get_active_profilec C s. | j j� \}}|d kr |d k }|r(tjS tjS )N)r rL r ZACTIVE_PROFILE_MANUALZACTIVE_PROFILE_AUTO)r r@ rM r" r" r# �_get_profile_mode� s zAdmin._get_profile_modec C s | j j� }|dkrd }|S )Nr
)r �post_loaded_profile)r r+ r" r" r# � _dbus_get_post_loaded_profile� s
z#Admin._dbus_get_post_loaded_profilec C s | j j� }|S )N)r Zget_post_loaded_profile)r r+ r" r" r# �_get_post_loaded_profile� s
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zAdmin._print_profile_namec C s |rt d| � d S )Nz Current post-loaded profile: %s)r& )r r+ r" r" r# �_print_post_loaded_profile� s z Admin._print_post_loaded_profilec C s4 | j � }| j|�}|r(| j� }| j|� | jj|�S )N)rK rY rQ rZ r rF )r rJ r= rP r" r" r# rE � s
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zAdmin._action_activec C s t d| � d S )NzProfile selection mode: )r& )r �moder" r" r# �_print_profile_mode� s zAdmin._print_profile_modec C sB | j j� \}}| j|� |dkr6| j|� | j jd�S | j jd�S )Nr
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zAdmin._action_profile_modec C s> |r,| j j� r:| j j� r:| jd� d}n| jd| � |S )NzCannot enable the tuning.Fz Unable to switch profile: %s)r Z
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� | jjd�S | jjd�S dS )Nz�Operation timed out after waiting %d seconds(s), you may try to increase timeout by using --timeout command line option or using --async.FzError changing profile: %sT) �time�
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)�endr% zUError: Failed to stop log capture. Restart the TuneD daemon to prevent a memory leak.) r r Zlog_capture_finishr& r' r( �flushr r )r Zlog_msgsr! r" r" r# r8 s zAdmin._log_capture_finishc C s� t |�dkr| j� S dj|�}|dkr2| jjd�S | jj� | j rn| jd k rn| j d d }| jj
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rp r Z auto_profilerF rd re rf r9 rg )r r+ r rb rc r" r" r# �_action_dbus_auto_profileI s
z Admin._action_dbus_auto_profilec C s | j j� }| j|d�S )NF)r � recommendrs )r r+ r" r" r# �_action_auto_profileY s
zAdmin._action_auto_profilec C s t | jj� � | jjd�S )NT)r& r ru rF )r r" r" r# � _action_dbus_recommend_profile] s z$Admin._action_dbus_recommend_profilec C s t | jj� � dS )NT)r& r rw )r r" r" r# �_action_recommend_profilea s z Admin._action_recommend_profilec C sr |r| j j� }n
| j j� }|r(td� n0td� td� td� td� td� td� tdtj � | j j|�S ) NzIVerification succeeded, current system settings match the preset profile.zLVerification failed, current system settings differ from the preset profile.z=You can mostly fix this by restarting the TuneD daemon, e.g.:z systemctl restart tuned�orz service tuned restartzNSometimes (if some plugins like bootloader are used) a reboot may be required.z&See TuneD log file ('%s') for details.)r Z verify_profile_ignore_missingZverify_profiler& r ZLOG_FILErF )r �ignore_missingrb r" r" r# �_action_dbus_verify_profilee s
z!Admin._action_dbus_verify_profilec C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r| r" r" r# �_action_verify_profilev s z Admin._action_verify_profilec C s: d}| j j| j|�| _| j j� }|s.| jd� | j j|�S )Nrj rk z Cannot disable active profile.r> )r rp r r Zoffr rF )r r rb r" r" r# �_action_dbus_offz s
zAdmin._action_dbus_offc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r" r" r# � _action_off� s zAdmin._action_offrD c C s( |dkr| j � S |dkr$| j|d�S dS )aD Print accessible profiles or plugins got from TuneD dbus api
Keyword arguments:
list_choice -- argument from command line deciding what will be listed
verbose -- if True then list plugin's config options and their hints
if possible. Functional only with plugin listing, with profiles
this argument is omitted
rD �plugins)�verboseN)rG �_action_dbus_list_plugins)r � list_choicer� r" r" r# rm � s zAdmin._action_dbus_listc C s( |dkr| j � S |dkr$| j|d�S dS )aa Print accessible profiles or plugins with no daemon mode
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verbose -- Plugins cannot be listed in this mode, so verbose argument
is here only because argparse module always supplies verbose
option and if verbose was not here it would result in error
rD r� )r� N)rI �_action_list_plugins)r r� r� r" r" r# � _action_list� s zAdmin._action_listc C s� | j j� }xv|j� D ]j}t|� | st|| �dkr8q| j j|�}x8|| D ],}td| � |j|d�}|rNtd| � qNW qW | j jd�S )zvPrint accessible plugins
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r z %sNz %sT)r Z get_plugins�keysr& rl Zget_plugin_hints�getrF )r r� r� �pluginZhintsZ parameterZhintr" r" r# r� � s
z Admin._action_dbus_list_pluginsc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r� r" r" r# r� � s zAdmin._action_list_pluginsc C s0 | j j||�\}}|s$| jd| � | j j|�S )Nz Unable to acquire devices: %s)r Zinstance_acquire_devicesr rF )r �devices�instancerb rc r" r" r# �%_action_dbus_instance_acquire_devices� s z+Admin._action_dbus_instance_acquire_devicesc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r� r� r" r" r# � _action_instance_acquire_devices� s z&Admin._action_instance_acquire_devicesc C s^ | j j|�\}}}|s0| jd| � | j jd�S x |D ]\}}td||f � q6W | j jd�S )Nz Unable to list instances: %sFz%s (%s)T)r Z
get_instancesr rF r& )r � plugin_namerb rc Zpairsr� r� r" r" r# �_action_dbus_get_instances� s z Admin._action_dbus_get_instancesc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r� r" r" r# �_action_get_instances� s zAdmin._action_get_instancesc C sR | j j|�\}}}|s0| jd| � | j jd�S x|D ] }t|� q6W | j jd�S )NzUnable to list devices: %sFT)r Zinstance_get_devicesr rF r& )r r� rb rc r� Zdevicer" r" r# �!_action_dbus_instance_get_devices� s
z'Admin._action_dbus_instance_get_devicesc C s t d� dS )Nz Not supported in no_daemon mode.F)r& )r r� r" r" r# � _action_instance_get_devices� s z"Admin._action_instance_get_devicesN)r
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| j d�S )N�profiles)r/ )r r r r r6 c s zDBusController.profilesc C s
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| j d�S )N�recommend_profile)r/ )r r r r rC � s z DBusController.recommend_profilec C s
| j d�S )N�verify_profile)r/ )r r r r rD � s z DBusController.verify_profilec C s
| j d�S )N� verify_profile_ignore_missing)r/ )r r r r rE � s z,DBusController.verify_profile_ignore_missingc C s
| j d�S )N�disable)r/ )r r r r �off� s zDBusController.offc C s
| j d�S )zzReturn dict with plugin names and their hints
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�get_plugin_hints)r/ )r rJ r r r rK � s z DBusController.get_plugin_hintsc C s | j d||�S )N�instance_acquire_devices)r/ )r Zdevices�instancer r r rL � s z'DBusController.instance_acquire_devicesc C s | j d|�S )N�
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from __future__ import print_function
import tuned.admin
from tuned.utils.commands import commands
from tuned.profiles import Locator as profiles_locator
from .exceptions import TunedAdminDBusException
from tuned.exceptions import TunedException
import tuned.consts as consts
from tuned.utils.profile_recommender import ProfileRecommender
import os
import sys
import errno
import time
import threading
import logging
class Admin(object):
def __init__(self, dbus = True, debug = False, asynco = False,
timeout = consts.ADMIN_TIMEOUT,
log_level = logging.ERROR):
self._dbus = dbus
self._debug = debug
self._async = asynco
self._timeout = timeout
self._cmd = commands(debug)
self._profiles_locator = profiles_locator(consts.LOAD_DIRECTORIES)
self._daemon_action_finished = threading.Event()
self._daemon_action_profile = ""
self._daemon_action_result = True
self._daemon_action_errstr = ""
self._controller = None
self._log_token = None
self._log_level = log_level
self._profile_recommender = ProfileRecommender()
if self._dbus:
self._controller = tuned.admin.DBusController(consts.DBUS_BUS, consts.DBUS_INTERFACE, consts.DBUS_OBJECT, debug)
try:
self._controller.set_signal_handler(consts.SIGNAL_PROFILE_CHANGED, self._signal_profile_changed_cb)
except TunedAdminDBusException as e:
self._error(e)
self._dbus = False
def _error(self, message):
print(message, file=sys.stderr)
def _signal_profile_changed_cb(self, profile_name, result, errstr):
# ignore successive signals if the signal is not yet processed
if not self._daemon_action_finished.is_set():
self._daemon_action_profile = profile_name
self._daemon_action_result = result
self._daemon_action_errstr = errstr
self._daemon_action_finished.set()
def _tuned_is_running(self):
try:
os.kill(int(self._cmd.read_file(consts.PID_FILE)), 0)
except OSError as e:
return e.errno == errno.EPERM
except (ValueError, IOError) as e:
return False
return True
# run the action specified by the action_name with args
def action(self, action_name, *args, **kwargs):
if action_name is None or action_name == "":
return False
action = None
action_dbus = None
res = False
try:
action_dbus = getattr(self, "_action_dbus_" + action_name)
except AttributeError as e:
self._dbus = False
try:
action = getattr(self, "_action_" + action_name)
except AttributeError as e:
if not self._dbus:
self._error(str(e) + ", action '%s' is not implemented" % action_name)
return False
if self._dbus:
try:
self._controller.set_on_exit_action(
self._log_capture_finish)
self._controller.set_action(action_dbus, *args, **kwargs)
res = self._controller.run()
except TunedAdminDBusException as e:
self._error(e)
self._dbus = False
if not self._dbus:
res = action(*args, **kwargs)
return res
def _print_profiles(self, profile_names):
print("Available profiles:")
for profile in profile_names:
if profile[1] is not None and profile[1] != "":
print(self._cmd.align_str("- %s" % profile[0], 30, "- %s" % profile[1]))
else:
print("- %s" % profile[0])
def _action_dbus_list_profiles(self):
try:
profile_names = self._controller.profiles2()
except TunedAdminDBusException as e:
# fallback to older API
profile_names = [(profile, "") for profile in self._controller.profiles()]
self._print_profiles(profile_names)
self._action_dbus_active()
return self._controller.exit(True)
def _action_list_profiles(self):
self._print_profiles(self._profiles_locator.get_known_names_summary())
self._action_active()
return True
def _dbus_get_active_profile(self):
profile_name = self._controller.active_profile()
if profile_name == "":
profile_name = None
self._controller.exit(True)
return profile_name
def _get_active_profile(self):
profile_name, manual = self._cmd.get_active_profile()
return profile_name
def _get_profile_mode(self):
(profile, manual) = self._cmd.get_active_profile()
if manual is None:
manual = profile is not None
return consts.ACTIVE_PROFILE_MANUAL if manual else consts.ACTIVE_PROFILE_AUTO
def _dbus_get_post_loaded_profile(self):
profile_name = self._controller.post_loaded_profile()
if profile_name == "":
profile_name = None
return profile_name
def _get_post_loaded_profile(self):
profile_name = self._cmd.get_post_loaded_profile()
return profile_name
def _print_profile_info(self, profile, profile_info):
if profile_info[0] == True:
print("Profile name:")
print(profile_info[1])
print()
print("Profile summary:")
print(profile_info[2])
print()
print("Profile description:")
print(profile_info[3])
return True
else:
print("Unable to get information about profile '%s'" % profile)
return False
def _action_dbus_profile_info(self, profile = ""):
if profile == "":
profile = self._dbus_get_active_profile()
if profile:
res = self._print_profile_info(profile, self._controller.profile_info(profile))
else:
print("No current active profile.")
res = False
return self._controller.exit(res)
def _action_profile_info(self, profile = ""):
if profile == "":
try:
profile = self._get_active_profile()
if profile is None:
print("No current active profile.")
return False
except TunedException as e:
self._error(str(e))
return False
return self._print_profile_info(profile, self._profiles_locator.get_profile_attrs(profile, [consts.PROFILE_ATTR_SUMMARY, consts.PROFILE_ATTR_DESCRIPTION], ["", ""]))
def _print_profile_name(self, profile_name):
if profile_name is None:
print("No current active profile.")
return False
else:
print("Current active profile: %s" % profile_name)
return True
def _print_post_loaded_profile(self, profile_name):
if profile_name:
print("Current post-loaded profile: %s" % profile_name)
def _action_dbus_active(self):
active_profile = self._dbus_get_active_profile()
res = self._print_profile_name(active_profile)
if res:
post_loaded_profile = self._dbus_get_post_loaded_profile()
self._print_post_loaded_profile(post_loaded_profile)
return self._controller.exit(res)
def _action_active(self):
try:
profile_name = self._get_active_profile()
post_loaded_profile = self._get_post_loaded_profile()
# The result of the DBus call active_profile includes
# the post-loaded profile, so add it here as well
if post_loaded_profile:
if profile_name:
profile_name += " "
else:
profile_name = ""
profile_name += post_loaded_profile
except TunedException as e:
self._error(str(e))
return False
if profile_name is not None and not self._tuned_is_running():
print("It seems that tuned daemon is not running, preset profile is not activated.")
print("Preset profile: %s" % profile_name)
if post_loaded_profile:
print("Preset post-loaded profile: %s" % post_loaded_profile)
return True
res = self._print_profile_name(profile_name)
self._print_post_loaded_profile(post_loaded_profile)
return res
def _print_profile_mode(self, mode):
print("Profile selection mode: " + mode)
def _action_dbus_profile_mode(self):
mode, error = self._controller.profile_mode()
self._print_profile_mode(mode)
if error != "":
self._error(error)
return self._controller.exit(False)
return self._controller.exit(True)
def _action_profile_mode(self):
try:
mode = self._get_profile_mode()
self._print_profile_mode(mode)
return True
except TunedException as e:
self._error(str(e))
return False
def _profile_print_status(self, ret, msg):
if ret:
if not self._controller.is_running() and not self._controller.start():
self._error("Cannot enable the tuning.")
ret = False
else:
self._error("Unable to switch profile: %s" % msg)
return ret
def _action_dbus_wait_profile(self, profile_name):
if time.time() >= self._timestamp + self._timeout:
print("Operation timed out after waiting %d seconds(s), you may try to increase timeout by using --timeout command line option or using --async." % self._timeout)
return self._controller.exit(False)
if self._daemon_action_finished.isSet():
if self._daemon_action_profile == profile_name:
if not self._daemon_action_result:
print("Error changing profile: %s" % self._daemon_action_errstr)
return self._controller.exit(False)
return self._controller.exit(True)
return False
def _log_capture_finish(self):
if self._log_token is None or self._log_token == "":
return
try:
log_msgs = self._controller.log_capture_finish(
self._log_token)
self._log_token = None
print(log_msgs, end = "", file = sys.stderr)
sys.stderr.flush()
except TunedAdminDBusException as e:
self._error("Error: Failed to stop log capture. Restart the TuneD daemon to prevent a memory leak.")
def _action_dbus_profile(self, profiles):
if len(profiles) == 0:
return self._action_dbus_list()
profile_name = " ".join(profiles)
if profile_name == "":
return self._controller.exit(False)
self._daemon_action_finished.clear()
if not self._async and self._log_level is not None:
# 25 seconds default DBus timeout + 5 secs safety margin
timeout = self._timeout + 25 + 5
self._log_token = self._controller.log_capture_start(
self._log_level, timeout)
(ret, msg) = self._controller.switch_profile(profile_name)
if self._async or not ret:
return self._controller.exit(self._profile_print_status(ret, msg))
else:
self._timestamp = time.time()
self._controller.set_action(self._action_dbus_wait_profile, profile_name)
return self._profile_print_status(ret, msg)
def _restart_tuned(self):
print("Trying to (re)start tuned...")
(ret, msg) = self._cmd.execute(["service", "tuned", "restart"])
if ret == 0:
print("TuneD (re)started, changes applied.")
else:
print("TuneD (re)start failed, you need to (re)start TuneD by hand for changes to apply.")
def _set_profile(self, profile_name, manual):
if profile_name in self._profiles_locator.get_known_names():
try:
self._cmd.save_active_profile(profile_name, manual)
self._restart_tuned()
return True
except TunedException as e:
self._error(str(e))
self._error("Unable to switch profile.")
return False
else:
self._error("Requested profile '%s' doesn't exist." % profile_name)
return False
def _action_profile(self, profiles):
if len(profiles) == 0:
return self._action_list_profiles()
profile_name = " ".join(profiles)
if profile_name == "":
return False
return self._set_profile(profile_name, True)
def _action_dbus_auto_profile(self):
profile_name = self._controller.recommend_profile()
self._daemon_action_finished.clear()
if not self._async and self._log_level is not None:
# 25 seconds default DBus timeout + 5 secs safety margin
timeout = self._timeout + 25 + 5
self._log_token = self._controller.log_capture_start(
self._log_level, timeout)
(ret, msg) = self._controller.auto_profile()
if self._async or not ret:
return self._controller.exit(self._profile_print_status(ret, msg))
else:
self._timestamp = time.time()
self._controller.set_action(self._action_dbus_wait_profile, profile_name)
return self._profile_print_status(ret, msg)
def _action_auto_profile(self):
profile_name = self._profile_recommender.recommend()
return self._set_profile(profile_name, False)
def _action_dbus_recommend_profile(self):
print(self._controller.recommend_profile())
return self._controller.exit(True)
def _action_recommend_profile(self):
print(self._profile_recommender.recommend())
return True
def _action_dbus_verify_profile(self, ignore_missing):
if ignore_missing:
ret = self._controller.verify_profile_ignore_missing()
else:
ret = self._controller.verify_profile()
if ret:
print("Verification succeeded, current system settings match the preset profile.")
else:
print("Verification failed, current system settings differ from the preset profile.")
print("You can mostly fix this by restarting the TuneD daemon, e.g.:")
print(" systemctl restart tuned")
print("or")
print(" service tuned restart")
print("Sometimes (if some plugins like bootloader are used) a reboot may be required.")
print("See TuneD log file ('%s') for details." % consts.LOG_FILE)
return self._controller.exit(ret)
def _action_verify_profile(self, ignore_missing):
print("Not supported in no_daemon mode.")
return False
def _action_dbus_off(self):
# 25 seconds default DBus timeout + 5 secs safety margin
timeout = 25 + 5
self._log_token = self._controller.log_capture_start(
self._log_level, timeout)
ret = self._controller.off()
if not ret:
self._error("Cannot disable active profile.")
return self._controller.exit(ret)
def _action_off(self):
print("Not supported in no_daemon mode.")
return False
def _action_dbus_list(self, list_choice="profiles", verbose=False):
"""Print accessible profiles or plugins got from TuneD dbus api
Keyword arguments:
list_choice -- argument from command line deciding what will be listed
verbose -- if True then list plugin's config options and their hints
if possible. Functional only with plugin listing, with profiles
this argument is omitted
"""
if list_choice == "profiles":
return self._action_dbus_list_profiles()
elif list_choice == "plugins":
return self._action_dbus_list_plugins(verbose=verbose)
def _action_list(self, list_choice="profiles", verbose=False):
"""Print accessible profiles or plugins with no daemon mode
Keyword arguments:
list_choice -- argument from command line deciding what will be listed
verbose -- Plugins cannot be listed in this mode, so verbose argument
is here only because argparse module always supplies verbose
option and if verbose was not here it would result in error
"""
if list_choice == "profiles":
return self._action_list_profiles()
elif list_choice == "plugins":
return self._action_list_plugins(verbose=verbose)
def _action_dbus_list_plugins(self, verbose=False):
"""Print accessible plugins
Keyword arguments:
verbose -- if is set to True then parameters and hints are printed
"""
plugins = self._controller.get_plugins()
for plugin in plugins.keys():
print(plugin)
if not verbose or len(plugins[plugin]) == 0:
continue
hints = self._controller.get_plugin_hints(plugin)
for parameter in plugins[plugin]:
print("\t%s" %(parameter))
hint = hints.get(parameter, None)
if hint:
print("\t\t%s" %(hint))
return self._controller.exit(True)
def _action_list_plugins(self, verbose=False):
print("Not supported in no_daemon mode.")
return False
def _action_dbus_instance_acquire_devices(self, devices, instance):
(ret, msg) = self._controller.instance_acquire_devices(devices, instance)
if not ret:
self._error("Unable to acquire devices: %s" % msg)
return self._controller.exit(ret)
def _action_instance_acquire_devices(self, devices, instance):
print("Not supported in no_daemon mode.")
return False
def _action_dbus_get_instances(self, plugin_name):
(ret, msg, pairs) = self._controller.get_instances(plugin_name)
if not ret:
self._error("Unable to list instances: %s" % msg)
return self._controller.exit(False)
for instance, plugin in pairs:
print("%s (%s)" % (instance, plugin))
return self._controller.exit(True)
def _action_get_instances(self, plugin_name):
print("Not supported in no_daemon mode.")
return False
def _action_dbus_instance_get_devices(self, instance):
(ret, msg, devices) = self._controller.instance_get_devices(instance)
if not ret:
self._error("Unable to list devices: %s" % msg)
return self._controller.exit(False)
for device in devices:
print(device)
return self._controller.exit(True)
def _action_instance_get_devices(self, instance):
print("Not supported in no_daemon mode.")
return False
admin/dbus_controller.py 0000644 00000011527 15035135375 0011423 0 ustar 00 import dbus
import dbus.exceptions
import time
from dbus.mainloop.glib import DBusGMainLoop
from gi.repository import GLib, GObject
from .exceptions import TunedAdminDBusException
__all__ = ["DBusController"]
class DBusController(object):
def __init__(self, bus_name, interface_name, object_name, debug = False):
self._bus_name = bus_name
self._interface_name = interface_name
self._object_name = object_name
self._proxy = None
self._interface = None
self._debug = debug
self._main_loop = None
self._action = None
self._on_exit_action = None
self._ret = True
self._exit = False
self._exception = None
def _init_proxy(self):
try:
if self._proxy is None:
DBusGMainLoop(set_as_default=True)
self._main_loop = GLib.MainLoop()
bus = dbus.SystemBus()
self._proxy = bus.get_object(self._bus_name, self._object_name)
self._interface = dbus.Interface(self._proxy, dbus_interface = self._interface_name)
except dbus.exceptions.DBusException:
raise TunedAdminDBusException("Cannot talk to TuneD daemon via DBus. Is TuneD daemon running?")
def _idle(self):
if self._action is not None:
# This may (and very probably will) run in child thread, so catch and pass exceptions to the main thread
try:
self._action_exit_code = self._action(*self._action_args, **self._action_kwargs)
except TunedAdminDBusException as e:
self._exception = e
self._exit = True
if self._exit:
if self._on_exit_action is not None:
self._on_exit_action(*self._on_exit_action_args,
**self._on_exit_action_kwargs)
self._main_loop.quit()
return False
else:
time.sleep(1)
return True
def set_on_exit_action(self, action, *args, **kwargs):
self._on_exit_action = action
self._on_exit_action_args = args
self._on_exit_action_kwargs = kwargs
def set_action(self, action, *args, **kwargs):
self._action = action
self._action_args = args
self._action_kwargs = kwargs
def run(self):
self._exception = None
GLib.idle_add(self._idle)
self._main_loop.run()
# Pass exception happened in child thread to the caller
if self._exception is not None:
raise self._exception
return self._ret
def _call(self, method_name, *args, **kwargs):
self._init_proxy()
try:
method = self._interface.get_dbus_method(method_name)
return method(*args, timeout=40)
except dbus.exceptions.DBusException as dbus_exception:
err_str = "DBus call to TuneD daemon failed"
if self._debug:
err_str += " (%s)" % str(dbus_exception)
raise TunedAdminDBusException(err_str)
def set_signal_handler(self, signal, cb):
self._init_proxy()
self._proxy.connect_to_signal(signal, cb)
def is_running(self):
return self._call("is_running")
def start(self):
return self._call("start")
def stop(self):
return self._call("stop")
def profiles(self):
return self._call("profiles")
def profiles2(self):
return self._call("profiles2")
def profile_info(self, profile_name):
return self._call("profile_info", profile_name)
def log_capture_start(self, log_level, timeout):
return self._call("log_capture_start", log_level, timeout)
def log_capture_finish(self, token):
return self._call("log_capture_finish", token)
def active_profile(self):
return self._call("active_profile")
def profile_mode(self):
return self._call("profile_mode")
def post_loaded_profile(self):
return self._call("post_loaded_profile")
def switch_profile(self, new_profile):
if new_profile == "":
return (False, "No profile specified")
return self._call("switch_profile", new_profile)
def auto_profile(self):
return self._call("auto_profile")
def recommend_profile(self):
return self._call("recommend_profile")
def verify_profile(self):
return self._call("verify_profile")
def verify_profile_ignore_missing(self):
return self._call("verify_profile_ignore_missing")
def off(self):
return self._call("disable")
def get_plugins(self):
"""Return dict with plugin names and their hints
Return:
dictionary -- {plugin_name: {parameter_name: default_value}}
"""
return self._call("get_all_plugins")
def get_plugin_documentation(self, plugin_name):
"""Return docstring of plugin's class"""
return self._call("get_plugin_documentation", plugin_name)
def get_plugin_hints(self, plugin_name):
"""Return dictionary with parameters of plugin and their hints
Parameters:
plugin_name -- name of plugin
Return:
dictionary -- {parameter_name: hint}
"""
return self._call("get_plugin_hints", plugin_name)
def instance_acquire_devices(self, devices, instance):
return self._call("instance_acquire_devices", devices, instance)
def get_instances(self, plugin_name):
return self._call("get_instances", plugin_name)
def instance_get_devices(self, instance):
return self._call("instance_get_devices", instance)
def exit(self, ret):
self.set_action(None)
self._ret = ret
self._exit = True
return ret
consts.py 0000644 00000017540 15035135375 0006445 0 ustar 00 import logging
import string
NAMES_ALLOWED_CHARS = string.ascii_letters + string.digits + " !@'+-.,/:;_$&*()%<=>?#[]{|}^~" + '"'
NAMES_MAX_LENGTH = 4096
GLOBAL_CONFIG_FILE = "/etc/tuned/tuned-main.conf"
ACTIVE_PROFILE_FILE = "/etc/tuned/active_profile"
PROFILE_MODE_FILE = "/etc/tuned/profile_mode"
POST_LOADED_PROFILE_FILE = "/etc/tuned/post_loaded_profile"
PROFILE_FILE = "tuned.conf"
RECOMMEND_CONF_FILE = "/etc/tuned/recommend.conf"
DAEMONIZE_PARENT_TIMEOUT = 5
NAMESPACE = "com.redhat.tuned"
DBUS_BUS = NAMESPACE
DBUS_INTERFACE = "com.redhat.tuned.control"
DBUS_OBJECT = "/Tuned"
DEFAULT_PROFILE = "balanced"
DEFAULT_STORAGE_FILE = "/run/tuned/save.pickle"
LOAD_DIRECTORIES = ["/usr/lib/tuned", "/etc/tuned"]
PERSISTENT_STORAGE_DIR = "/var/lib/tuned"
PLUGIN_MAIN_UNIT_NAME = "main"
# Magic section header because ConfigParser does not support "headerless" config
MAGIC_HEADER_NAME = "this_is_some_magic_section_header_because_of_compatibility"
RECOMMEND_DIRECTORIES = ["/usr/lib/tuned/recommend.d", "/etc/tuned/recommend.d"]
TMP_FILE_SUFFIX = ".tmp"
# max. number of consecutive errors to give up
ERROR_THRESHOLD = 3
# bootloader plugin configuration
BOOT_DIR = "/boot"
GRUB2_CFG_FILES = ["/etc/grub2.cfg", "/etc/grub2-efi.cfg"]
GRUB2_CFG_DIR = "/etc/grub.d"
GRUB2_TUNED_TEMPLATE_NAME = "00_tuned"
GRUB2_TUNED_TEMPLATE_PATH = GRUB2_CFG_DIR + "/" + GRUB2_TUNED_TEMPLATE_NAME
GRUB2_TEMPLATE_HEADER_BEGIN = "### BEGIN /etc/grub.d/" + GRUB2_TUNED_TEMPLATE_NAME + " ###"
GRUB2_TEMPLATE_HEADER_END = "### END /etc/grub.d/" + GRUB2_TUNED_TEMPLATE_NAME + " ###"
GRUB2_TUNED_VAR = "tuned_params"
GRUB2_TUNED_INITRD_VAR = "tuned_initrd"
GRUB2_DEFAULT_ENV_FILE = "/etc/default/grub"
INITRD_IMAGE_DIR = "/boot"
BOOT_CMDLINE_TUNED_VAR = "TUNED_BOOT_CMDLINE"
BOOT_CMDLINE_INITRD_ADD_VAR = "TUNED_BOOT_INITRD_ADD"
BOOT_CMDLINE_KARGS_DELETED_VAR = "TUNED_BOOT_KARGS_DELETED"
BOOT_CMDLINE_FILE = "/etc/tuned/bootcmdline"
PETITBOOT_DETECT_DIR = "/sys/firmware/opal"
MACHINE_ID_FILE = "/etc/machine-id"
KERNEL_UPDATE_HOOK_FILE = "/usr/lib/kernel/install.d/92-tuned.install"
BLS_ENTRIES_PATH = "/boot/loader/entries"
# scheduler plugin configuration
# how many times retry to move tasks to parent cgroup on cgroup cleanup
CGROUP_CLEANUP_TASKS_RETRY = 10
PROCFS_MOUNT_POINT = "/proc"
DEF_CGROUP_MOUNT_POINT = "/sys/fs/cgroup/cpuset"
DEF_CGROUP_MODE = 0o770
# service plugin configuration
SERVICE_SYSTEMD_CFG_PATH = "/etc/systemd/system/%s.service.d"
DEF_SERVICE_CFG_DIR_MODE = 0o755
# modules plugin configuration
MODULES_FILE = "/etc/modprobe.d/tuned.conf"
# systemd plugin configuration
SYSTEMD_SYSTEM_CONF_FILE = "/etc/systemd/system.conf"
SYSTEMD_CPUAFFINITY_VAR = "CPUAffinity"
# irqbalance plugin configuration
IRQBALANCE_SYSCONFIG_FILE = "/etc/sysconfig/irqbalance"
# acpi plugin configuration
ACPI_DIR = "/sys/firmware/acpi"
# built-in functions configuration
SYSFS_CPUS_PATH = "/sys/devices/system/cpu"
# number of backups
LOG_FILE_COUNT = 2
LOG_FILE_MAXBYTES = 100*1000
LOG_FILE = "/var/log/tuned/tuned.log"
PID_FILE = "/run/tuned/tuned.pid"
SYSTEM_RELEASE_FILE = "/etc/system-release-cpe"
# prefix for functions plugins
FUNCTION_PREFIX = "function_"
# prefix for exported environment variables when calling scripts
ENV_PREFIX = "TUNED_"
ROLLBACK_NONE = 0
ROLLBACK_SOFT = 1
ROLLBACK_FULL = 2
# tuned-gui
PREFIX_PROFILE_FACTORY = "System"
PREFIX_PROFILE_USER = "User"
# PPD-to-tuned API translation daemon configuration
PPD_NAMESPACE = "net.hadess.PowerProfiles"
PPD_DBUS_BUS = PPD_NAMESPACE
PPD_DBUS_OBJECT = "/net/hadess/PowerProfiles"
PPD_DBUS_INTERFACE = PPD_DBUS_BUS
PPD_CONFIG_FILE = "/etc/tuned/ppd.conf"
# After adding new option to tuned-main.conf add here its name with CFG_ prefix
# and eventually default value with CFG_DEF_ prefix (default is None)
# and function for check with CFG_FUNC_ prefix
# (see configobj for methods, default is get for string)
CFG_DAEMON = "daemon"
CFG_DYNAMIC_TUNING = "dynamic_tuning"
CFG_SLEEP_INTERVAL = "sleep_interval"
CFG_UPDATE_INTERVAL = "update_interval"
CFG_RECOMMEND_COMMAND = "recommend_command"
CFG_REAPPLY_SYSCTL = "reapply_sysctl"
CFG_DEFAULT_INSTANCE_PRIORITY = "default_instance_priority"
CFG_UDEV_BUFFER_SIZE = "udev_buffer_size"
CFG_LOG_FILE_COUNT = "log_file_count"
CFG_LOG_FILE_MAX_SIZE = "log_file_max_size"
CFG_UNAME_STRING = "uname_string"
CFG_CPUINFO_STRING = "cpuinfo_string"
CFG_ENABLE_DBUS = "enable_dbus"
CFG_ENABLE_UNIX_SOCKET = "enable_unix_socket"
CFG_UNIX_SOCKET_PATH = "unix_socket_path"
CFG_UNIX_SOCKET_SIGNAL_PATHS = "unix_socket_signal_paths"
CFG_UNIX_SOCKET_OWNERSHIP = "unix_socket_ownership"
CFG_UNIX_SOCKET_PERMISIONS = "unix_socket_permissions"
CFG_UNIX_SOCKET_CONNECTIONS_BACKLOG = "connections_backlog"
CFG_CPU_EPP_FLAG = "hwp_epp"
CFG_ROLLBACK = "rollback"
# no_daemon mode
CFG_DEF_DAEMON = True
CFG_FUNC_DAEMON = "getboolean"
# default configuration
CFG_DEF_DYNAMIC_TUNING = True
CFG_FUNC_DYNAMIC_TUNING = "getboolean"
# how long to sleep before checking for events (in seconds)
CFG_DEF_SLEEP_INTERVAL = 1
CFG_FUNC_SLEEP_INTERVAL = "getint"
# update interval for dynamic tuning (in seconds)
CFG_DEF_UPDATE_INTERVAL = 10
CFG_FUNC_UPDATE_INTERVAL = "getint"
# recommend command availability
CFG_DEF_RECOMMEND_COMMAND = True
CFG_FUNC_RECOMMEND_COMMAND = "getboolean"
# reapply system sysctl
CFG_DEF_REAPPLY_SYSCTL = True
CFG_FUNC_REAPPLY_SYSCTL = "getboolean"
# default instance priority
CFG_DEF_DEFAULT_INSTANCE_PRIORITY = 0
CFG_FUNC_DEFAULT_INSTANCE_PRIORITY = "getint"
# default pyudev.Monitor buffer size
CFG_DEF_UDEV_BUFFER_SIZE = 1024 * 1024
# default log file count
CFG_DEF_LOG_FILE_COUNT = 2
CFG_FUNC_LOG_FILE_COUNT = "getint"
# default log file max size
CFG_DEF_LOG_FILE_MAX_SIZE = 1024 * 1024
# default listening on dbus
CFG_DEF_ENABLE_DBUS = True
CFG_FUNC_ENABLE_DBUS = "getboolean"
# default listening on unix socket
# as it is not used commonly disabled by default
CFG_DEF_ENABLE_UNIX_SOCKET = False
CFG_FUNC_ENABLE_UNIX_SOCKET = "getboolean"
# default unix socket path
CFG_DEF_UNIX_SOCKET_PATH = "/run/tuned/tuned.sock"
CFG_DEF_UNIX_SOCKET_SIGNAL_PATHS = ""
# default unix socket ownership
# (uid and gid, python2 does not support names out of box, -1 leaves default)
CFG_DEF_UNIX_SOCKET_OWNERSHIP = "-1 -1"
# default unix socket permissions
CFG_DEF_UNIX_SOCKET_PERMISIONS = "0o600"
# default unix socket conections backlog
CFG_DEF_UNIX_SOCKET_CONNECTIONS_BACKLOG = "1024"
CFG_FUNC_UNIX_SOCKET_CONNECTIONS_BACKLOG = "getint"
# default rollback strategy
CFG_DEF_ROLLBACK = "auto"
PATH_CPU_DMA_LATENCY = "/dev/cpu_dma_latency"
# profile attributes which can be specified in the main section
PROFILE_ATTR_SUMMARY = "summary"
PROFILE_ATTR_DESCRIPTION = "description"
SIGNAL_PROFILE_CHANGED = "profile_changed"
STR_HINT_REBOOT = "you need to reboot for changes to take effect"
STR_VERIFY_PROFILE_DEVICE_VALUE_OK = "verify: passed: device %s: '%s' = '%s'"
STR_VERIFY_PROFILE_VALUE_OK = "verify: passed: '%s' = '%s'"
STR_VERIFY_PROFILE_OK = "verify: passed: '%s'"
STR_VERIFY_PROFILE_DEVICE_VALUE_MISSING = "verify: skipped, missing: device %s: '%s'"
STR_VERIFY_PROFILE_VALUE_MISSING = "verify: skipped, missing: '%s'"
STR_VERIFY_PROFILE_DEVICE_VALUE_FAIL = "verify: failed: device %s: '%s' = '%s', expected '%s'"
STR_VERIFY_PROFILE_VALUE_FAIL = "verify: failed: '%s' = '%s', expected '%s'"
STR_VERIFY_PROFILE_CMDLINE_FAIL = "verify: failed: cmdline arg '%s', expected '%s'"
STR_VERIFY_PROFILE_CMDLINE_FAIL_MISSING = "verify: failed: cmdline arg '%s' is missing, expected '%s'"
STR_VERIFY_PROFILE_FAIL = "verify: failed: '%s'"
# timout for tuned-adm operations in seconds
ADMIN_TIMEOUT = 600
# Strings for /etc/tuned/profile_mode specifying if the active profile
# was set automatically or manually
ACTIVE_PROFILE_AUTO = "auto"
ACTIVE_PROFILE_MANUAL = "manual"
LOG_LEVEL_CONSOLE = 60
LOG_LEVEL_CONSOLE_NAME = "CONSOLE"
CAPTURE_LOG_LEVEL = "console"
CAPTURE_LOG_LEVELS = {
"debug": logging.DEBUG,
"info": logging.INFO,
"warn": logging.WARN,
"error": logging.ERROR,
"console": LOG_LEVEL_CONSOLE,
"none": None,
}
version.py 0000644 00000000253 15035135375 0006612 0 ustar 00 TUNED_VERSION_MAJOR = 2
TUNED_VERSION_MINOR = 22
TUNED_VERSION_PATCH = 1
TUNED_VERSION_STR = "%d.%d.%d" % (TUNED_VERSION_MAJOR, TUNED_VERSION_MINOR, TUNED_VERSION_PATCH)
units/__init__.py 0000644 00000000027 15035135375 0010025 0 ustar 00 from .manager import *
units/manager.py 0000644 00000013654 15035135375 0007712 0 ustar 00 import collections
import os
import re
import traceback
import tuned.exceptions
import tuned.logs
import tuned.plugins.exceptions
import tuned.consts as consts
from tuned.utils.global_config import GlobalConfig
from tuned.utils.commands import commands
log = tuned.logs.get()
__all__ = ["Manager"]
class Manager(object):
"""
Manager creates plugin instances and keeps a track of them.
"""
def __init__(self, plugins_repository, monitors_repository,
def_instance_priority, hardware_inventory, config = None):
super(Manager, self).__init__()
self._plugins_repository = plugins_repository
self._monitors_repository = monitors_repository
self._def_instance_priority = def_instance_priority
self._hardware_inventory = hardware_inventory
self._instances = []
self._plugins = []
self._config = config or GlobalConfig()
self._cmd = commands()
@property
def plugins(self):
return self._plugins
@property
def instances(self):
return self._instances
@property
def plugins_repository(self):
return self._plugins_repository
def _unit_matches_cpuinfo(self, unit):
if unit.cpuinfo_regex is None:
return True
cpuinfo_string = self._config.get(consts.CFG_CPUINFO_STRING)
if cpuinfo_string is None:
cpuinfo_string = self._cmd.read_file("/proc/cpuinfo")
return re.search(unit.cpuinfo_regex, cpuinfo_string,
re.MULTILINE) is not None
def _unit_matches_uname(self, unit):
if unit.uname_regex is None:
return True
uname_string = self._config.get(consts.CFG_UNAME_STRING)
if uname_string is None:
uname_string = " ".join(os.uname())
return re.search(unit.uname_regex, uname_string,
re.MULTILINE) is not None
def create(self, instances_config):
instance_info_list = []
for instance_name, instance_info in list(instances_config.items()):
if not instance_info.enabled:
log.debug("skipping disabled instance '%s'" % instance_name)
continue
if not self._unit_matches_cpuinfo(instance_info):
log.debug("skipping instance '%s', cpuinfo does not match" % instance_name)
continue
if not self._unit_matches_uname(instance_info):
log.debug("skipping instance '%s', uname does not match" % instance_name)
continue
instance_info.options.setdefault("priority", self._def_instance_priority)
instance_info.options["priority"] = int(instance_info.options["priority"])
instance_info_list.append(instance_info)
instance_info_list.sort(key=lambda x: x.options["priority"])
plugins_by_name = collections.OrderedDict()
for instance_info in instance_info_list:
instance_info.options.pop("priority")
plugins_by_name[instance_info.type] = None
for plugin_name, none in list(plugins_by_name.items()):
try:
plugin = self._plugins_repository.create(plugin_name)
plugins_by_name[plugin_name] = plugin
self._plugins.append(plugin)
except tuned.plugins.exceptions.NotSupportedPluginException:
log.info("skipping plugin '%s', not supported on your system" % plugin_name)
continue
except Exception as e:
log.error("failed to initialize plugin %s" % plugin_name)
log.exception(e)
continue
instances = []
for instance_info in instance_info_list:
plugin = plugins_by_name[instance_info.type]
if plugin is None:
continue
log.debug("creating '%s' (%s)" % (instance_info.name, instance_info.type))
new_instance = plugin.create_instance(instance_info.name, instance_info.devices, instance_info.devices_udev_regex, \
instance_info.script_pre, instance_info.script_post, instance_info.options)
instances.append(new_instance)
for instance in instances:
instance.plugin.init_devices()
instance.plugin.assign_free_devices(instance)
instance.plugin.initialize_instance(instance)
# At this point we should be able to start the HW events
# monitoring/processing thread, without risking race conditions
self._hardware_inventory.start_processing_events()
self._instances.extend(instances)
def _try_call(self, caller, exc_ret, f, *args, **kwargs):
try:
return f(*args, **kwargs)
except Exception as e:
trace = traceback.format_exc()
log.error("BUG: Unhandled exception in %s: %s"
% (caller, str(e)))
log.error(trace)
return exc_ret
def destroy_all(self):
for instance in self._instances:
log.debug("destroying instance %s" % instance.name)
self._try_call("destroy_all", None,
instance.plugin.destroy_instance,
instance)
for plugin in self._plugins:
log.debug("cleaning plugin '%s'" % plugin.name)
self._try_call("destroy_all", None, plugin.cleanup)
del self._plugins[:]
del self._instances[:]
def update_monitors(self):
for monitor in self._monitors_repository.monitors:
log.debug("updating monitor %s" % monitor)
self._try_call("update_monitors", None, monitor.update)
def start_tuning(self):
for instance in self._instances:
self._try_call("start_tuning", None,
instance.apply_tuning)
def verify_tuning(self, ignore_missing):
ret = True
for instance in self._instances:
res = self._try_call("verify_tuning", False,
instance.verify_tuning, ignore_missing)
if res == False:
ret = False
return ret
def update_tuning(self):
for instance in self._instances:
self._try_call("update_tuning", None,
instance.update_tuning)
# rollback parameter is a helper telling plugins whether soft or full
# rollback is needed, e.g. for bootloader plugin we need grub.cfg
# tuning to persist across reboots and restarts of the daemon, so in
# this case the rollback is usually set to consts.ROLLBACK_SOFT,
# but we also need to clean it all up when TuneD is disabled or the
# profile is changed. In this case the rollback is set to
# consts.ROLLBACK_FULL. In practice it means to remove all temporal
# or helper files, unpatch third party config files, etc.
def stop_tuning(self, rollback = consts.ROLLBACK_SOFT):
self._hardware_inventory.stop_processing_events()
for instance in reversed(self._instances):
self._try_call("stop_tuning", None,
instance.unapply_tuning, rollback)
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plugins/plugin_sysctl.py 0000644 00000015372 15035135375 0011515 0 ustar 00 import re
from . import base
from .decorators import *
import tuned.logs
from subprocess import *
from tuned.utils.commands import commands
import tuned.consts as consts
import errno
import os
log = tuned.logs.get()
DEPRECATED_SYSCTL_OPTIONS = [ "base_reachable_time", "retrans_time" ]
SYSCTL_CONFIG_DIRS = [ "/run/sysctl.d",
"/etc/sysctl.d" ]
class SysctlPlugin(base.Plugin):
"""
`sysctl`::
Sets various kernel parameters at runtime.
+
This plug-in is used for applying custom `sysctl` settings and should
only be used to change system settings that are not covered by other
*TuneD* plug-ins. If the settings are covered by other *TuneD* plug-ins,
use those plug-ins instead.
+
The syntax for this plug-in is
`_key_=_value_`, where
`_key_` is the same as the key name provided by the
`sysctl` utility.
+
.Adjusting the kernel runtime kernel.sched_min_granularity_ns value
====
----
[sysctl]
kernel.sched_min_granularity_ns=3000000
----
====
"""
def __init__(self, *args, **kwargs):
super(SysctlPlugin, self).__init__(*args, **kwargs)
self._has_dynamic_options = True
self._cmd = commands()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
# FIXME: do we want to do this here?
# recover original values in case of crash
storage_key = self._storage_key(instance.name)
instance._sysctl_original = self._storage.get(storage_key, {})
if len(instance._sysctl_original) > 0:
log.info("recovering old sysctl settings from previous run")
self._instance_unapply_static(instance)
instance._sysctl_original = {}
self._storage.unset(storage_key)
instance._sysctl = instance.options
def _instance_cleanup(self, instance):
storage_key = self._storage_key(instance.name)
self._storage.unset(storage_key)
def _instance_apply_static(self, instance):
for option, value in list(instance._sysctl.items()):
original_value = self._read_sysctl(option)
if original_value is None:
log.error("sysctl option %s will not be set, failed to read the original value."
% option)
else:
new_value = self._variables.expand(
self._cmd.unquote(value))
new_value = self._process_assignment_modifiers(
new_value, original_value)
if new_value is not None:
instance._sysctl_original[option] = original_value
self._write_sysctl(option, new_value)
storage_key = self._storage_key(instance.name)
self._storage.set(storage_key, instance._sysctl_original)
if self._global_cfg.get_bool(consts.CFG_REAPPLY_SYSCTL, consts.CFG_DEF_REAPPLY_SYSCTL):
log.info("reapplying system sysctl")
self._apply_system_sysctl(instance._sysctl)
def _instance_verify_static(self, instance, ignore_missing, devices):
ret = True
# override, so always skip missing
ignore_missing = True
for option, value in list(instance._sysctl.items()):
curr_val = self._read_sysctl(option)
value = self._process_assignment_modifiers(self._variables.expand(value), curr_val)
if value is not None:
if self._verify_value(option, self._cmd.remove_ws(value), self._cmd.remove_ws(curr_val), ignore_missing) == False:
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
for option, value in list(instance._sysctl_original.items()):
self._write_sysctl(option, value)
def _apply_system_sysctl(self, instance_sysctl):
files = {}
for d in SYSCTL_CONFIG_DIRS:
try:
flist = os.listdir(d)
except OSError:
continue
for fname in flist:
if not fname.endswith(".conf"):
continue
if fname not in files:
files[fname] = d
for fname in sorted(files.keys()):
d = files[fname]
path = "%s/%s" % (d, fname)
self._apply_sysctl_config_file(path, instance_sysctl)
self._apply_sysctl_config_file("/etc/sysctl.conf", instance_sysctl)
def _apply_sysctl_config_file(self, path, instance_sysctl):
log.debug("Applying sysctl settings from file %s" % path)
try:
with open(path, "r") as f:
for lineno, line in enumerate(f, 1):
self._apply_sysctl_config_line(path, lineno, line, instance_sysctl)
log.debug("Finished applying sysctl settings from file %s"
% path)
except (OSError, IOError) as e:
if e.errno != errno.ENOENT:
log.error("Error reading sysctl settings from file %s: %s"
% (path, str(e)))
def _apply_sysctl_config_line(self, path, lineno, line, instance_sysctl):
line = line.strip()
if len(line) == 0 or line[0] == "#" or line[0] == ";":
return
tmp = line.split("=", 1)
if len(tmp) != 2:
log.error("Syntax error in file %s, line %d"
% (path, lineno))
return
option, value = tmp
option = option.strip()
if len(option) == 0:
log.error("Syntax error in file %s, line %d"
% (path, lineno))
return
value = value.strip()
if option in instance_sysctl:
instance_value = self._variables.expand(instance_sysctl[option])
if instance_value != value:
log.info("Overriding sysctl parameter '%s' from '%s' to '%s'"
% (option, instance_value, value))
self._write_sysctl(option, value, ignore_missing = True)
def _get_sysctl_path(self, option):
# The sysctl name in sysctl tool and in /proc/sys differs.
# All dots (.) in sysctl name are represented by /proc/sys
# directories and all slashes in the name (/) are converted
# to dots (.) in the /proc/sys filenames.
return "/proc/sys/%s" % self._cmd.tr(option, "./", "/.")
def _read_sysctl(self, option):
path = self._get_sysctl_path(option)
try:
with open(path, "r") as f:
line = ""
for i, line in enumerate(f):
if i > 0:
log.error("Failed to read sysctl parameter '%s', multi-line values are unsupported"
% option)
return None
value = line.strip()
log.debug("Value of sysctl parameter '%s' is '%s'"
% (option, value))
return value
except (OSError, IOError) as e:
if e.errno == errno.ENOENT:
log.error("Failed to read sysctl parameter '%s', the parameter does not exist"
% option)
else:
log.error("Failed to read sysctl parameter '%s': %s"
% (option, str(e)))
return None
def _write_sysctl(self, option, value, ignore_missing = False):
path = self._get_sysctl_path(option)
if os.path.basename(path) in DEPRECATED_SYSCTL_OPTIONS:
log.error("Refusing to set deprecated sysctl option %s"
% option)
return False
try:
log.debug("Setting sysctl parameter '%s' to '%s'"
% (option, value))
with open(path, "w") as f:
f.write(value)
return True
except (OSError, IOError) as e:
if e.errno == errno.ENOENT:
log_func = log.debug if ignore_missing else log.error
log_func("Failed to set sysctl parameter '%s' to '%s', the parameter does not exist"
% (option, value))
else:
log.error("Failed to set sysctl parameter '%s' to '%s': %s"
% (option, value, str(e)))
return False
plugins/__init__.py 0000644 00000000061 15035135375 0010342 0 ustar 00 from .repository import *
from . import instance
plugins/plugin_vm.py 0000644 00000006751 15035135375 0010617 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
import os
import errno
import struct
import glob
from tuned.utils.commands import commands
log = tuned.logs.get()
cmd = commands()
class VMPlugin(base.Plugin):
"""
`vm`::
Enables or disables transparent huge pages depending on value of the
[option]`transparent_hugepages` option. The option can have one of three
possible values `always`, `madvise` and `never`.
+
.Disable transparent hugepages
====
----
[vm]
transparent_hugepages=never
----
====
+
The [option]`transparent_hugepage.defrag` option specifies the
defragmentation policy. Possible values for this option are `always`,
`defer`, `defer+madvise`, `madvise` and `never`. For a detailed
explanation of these values refer to
link:https://www.kernel.org/doc/Documentation/vm/transhuge.txt[Transparent Hugepage Support].
"""
@classmethod
def _get_config_options(self):
return {
"transparent_hugepages" : None,
"transparent_hugepage" : None,
"transparent_hugepage.defrag" : None,
}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
@classmethod
def _thp_path(self):
path = "/sys/kernel/mm/transparent_hugepage"
if not os.path.exists(path):
# RHEL-6 support
path = "/sys/kernel/mm/redhat_transparent_hugepage"
return path
@command_set("transparent_hugepages")
def _set_transparent_hugepages(self, value, sim, remove):
if value not in ["always", "never", "madvise"]:
if not sim:
log.warn("Incorrect 'transparent_hugepages' value '%s'." % str(value))
return None
cmdline = cmd.read_file("/proc/cmdline", no_error = True)
if cmdline.find("transparent_hugepage=") > 0:
if not sim:
log.info("transparent_hugepage is already set in kernel boot cmdline, ignoring value from profile")
return None
sys_file = os.path.join(self._thp_path(), "enabled")
if os.path.exists(sys_file):
if not sim:
cmd.write_to_file(sys_file, value, \
no_error = [errno.ENOENT] if remove else False)
return value
else:
if not sim:
log.warn("Option 'transparent_hugepages' is not supported on current hardware.")
return None
# just an alias to transparent_hugepages
@command_set("transparent_hugepage")
def _set_transparent_hugepage(self, value, sim, remove):
self._set_transparent_hugepages(value, sim, remove)
@command_get("transparent_hugepages")
def _get_transparent_hugepages(self):
sys_file = os.path.join(self._thp_path(), "enabled")
if os.path.exists(sys_file):
return cmd.get_active_option(cmd.read_file(sys_file))
else:
return None
# just an alias to transparent_hugepages
@command_get("transparent_hugepage")
def _get_transparent_hugepage(self):
return self._get_transparent_hugepages()
@command_set("transparent_hugepage.defrag")
def _set_transparent_hugepage_defrag(self, value, sim, remove):
sys_file = os.path.join(self._thp_path(), "defrag")
if os.path.exists(sys_file):
if not sim:
cmd.write_to_file(sys_file, value, \
no_error = [errno.ENOENT] if remove else False)
return value
else:
if not sim:
log.warn("Option 'transparent_hugepage.defrag' is not supported on current hardware.")
return None
@command_get("transparent_hugepage.defrag")
def _get_transparent_hugepage_defrag(self):
sys_file = os.path.join(self._thp_path(), "defrag")
if os.path.exists(sys_file):
return cmd.get_active_option(cmd.read_file(sys_file))
else:
return None
plugins/exceptions.py 0000644 00000000143 15035135375 0010765 0 ustar 00 import tuned.exceptions
class NotSupportedPluginException(tuned.exceptions.TunedException):
pass
plugins/plugin_usb.py 0000644 00000003737 15035135375 0010767 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import glob
import errno
log = tuned.logs.get()
class USBPlugin(base.Plugin):
"""
`usb`::
Sets autosuspend timeout of USB devices to the value specified by the
[option]`autosuspend` option in seconds. If the [option]`devices`
option is specified, the [option]`autosuspend` option applies to only
the USB devices specified, otherwise it applies to all USB devices.
+
The value `0` means that autosuspend is disabled.
+
.To turn off USB autosuspend for USB devices `1-1` and `1-2`
====
----
[usb]
devices=1-1,1-2
autosuspend=0
----
====
"""
def _init_devices(self):
self._devices_supported = True
self._free_devices = set()
self._assigned_devices = set()
for device in self._hardware_inventory.get_devices("usb").match_property("DEVTYPE", "usb_device"):
self._free_devices.add(device.sys_name)
self._cmd = commands()
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("usb", x) for x in devices]
@classmethod
def _get_config_options(self):
return {
"autosuspend" : None,
}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
def _autosuspend_sysfile(self, device):
return "/sys/bus/usb/devices/%s/power/autosuspend" % device
@command_set("autosuspend", per_device=True)
def _set_autosuspend(self, value, device, sim, remove):
enable = self._option_bool(value)
if enable is None:
return None
val = "1" if enable else "0"
if not sim:
sys_file = self._autosuspend_sysfile(device)
self._cmd.write_to_file(sys_file, val, \
no_error = [errno.ENOENT] if remove else False)
return val
@command_get("autosuspend")
def _get_autosuspend(self, device, ignore_missing=False):
sys_file = self._autosuspend_sysfile(device)
return self._cmd.read_file(sys_file, no_error=ignore_missing).strip()
plugins/plugin_cpu.py 0000644 00000067072 15035135375 0010767 0 ustar 00 from . import hotplug
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import tuned.consts as consts
import os
import errno
import struct
import errno
import platform
import procfs
log = tuned.logs.get()
cpuidle_states_path = "/sys/devices/system/cpu/cpu0/cpuidle"
class CPULatencyPlugin(hotplug.Plugin):
"""
`cpu`::
Sets the CPU governor to the value specified by the [option]`governor`
option and dynamically changes the Power Management Quality of
Service (PM QoS) CPU Direct Memory Access (DMA) latency according
to the CPU load.
`governor`:::
The [option]`governor` option of the 'cpu' plug-in supports specifying
CPU governors. Multiple governors are separated using '|'. The '|'
character is meant to represent a logical 'or' operator. Note that the
same syntax is used for the [option]`energy_perf_bias` option. *TuneD*
will set the first governor that is available on the system.
+
For example, with the following profile, *TuneD* will set the 'ondemand'
governor, if it is available. If it is not available, but the 'powersave'
governor is available, 'powersave' will be set. If neither of them are
available, the governor will not be changed.
+
.Specifying a CPU governor
====
----
[cpu]
governor=ondemand|powersave
----
====
`sampling_down_factor`:::
The sampling rate determines how frequently the governor checks
to tune the CPU. The [option]`sampling_down_factor` is a tunable
that multiplies the sampling rate when the CPU is at its highest
clock frequency thereby delaying load evaluation and improving
performance. Allowed values for sampling_down_factor are 1 to 100000.
+
.The recommended setting for jitter reduction
====
----
[cpu]
sampling_down_factor = 100
----
====
`energy_perf_bias`:::
[option]`energy_perf_bias` supports managing energy
vs. performance policy via x86 Model Specific Registers using the
`x86_energy_perf_policy` tool. Multiple alternative Energy Performance
Bias (EPB) values are supported. The alternative values are separated
using the '|' character. The following EPB values are supported
starting with kernel 4.13: "performance", "balance-performance",
"normal", "balance-power" and "power". On newer processors is value
writen straight to file (see rhbz#2095829)
+
.Specifying alternative Energy Performance Bias values
====
----
[cpu]
energy_perf_bias=powersave|power
----
*TuneD* will try to set EPB to 'powersave'. If that fails, it will
try to set it to 'power'.
====
`energy_performance_preference`:::
[option]`energy_performance_preference` supports managing energy
vs. performance hints on newer Intel and AMD processors with active P-State
CPU scaling drivers (intel_pstate or amd-pstate). Multiple alternative
Energy Performance Preferences (EPP) values are supported. The alternative
values are separated using the '|' character. Available values can be found
in `energy_performance_available_preferences` file in `CPUFreq` policy
directory in `sysfs`.
in
+
.Specifying alternative Energy Performance Hints values
====
----
[cpu]
energy_performance_preference=balance_power|power
----
*TuneD* will try to set EPP to 'balance_power'. If that fails, it will
try to set it to 'power'.
====
`latency_low, latency_high, load_threshold`:::
+
If the CPU load is lower than the value specified by
the[option]`load_threshold` option, the latency is set to the value
specified either by the [option]`latency_high` option or by the
[option]`latency_low` option.
+
`force_latency`:::
You can also force the latency to a specific value and prevent it from
dynamically changing further. To do so, set the [option]`force_latency`
option to the required latency value.
+
The maximum latency value can be specified in several ways:
+
* by a numerical value in microseconds (for example, `force_latency=10`)
* as the kernel CPU idle level ID of the maximum C-state allowed
(for example, force_latency = cstate.id:1)
* as a case sensitive name of the maximum C-state allowed
(for example, force_latency = cstate.name:C1)
* by using 'None' as a fallback value to prevent errors when alternative
C-state IDs/names do not exist. When 'None' is used in the alternatives
pipeline, all the alternatives that follow 'None' are ignored.
+
It is also possible to specify multiple fallback values separated by '|' as
the C-state names and/or IDs may not be available on some systems.
+
.Specifying fallback C-state values
====
----
[cpu]
force_latency=cstate.name:C6|cstate.id:4|10
----
This configuration tries to obtain and set the latency of C-state named C6.
If the C-state C6 does not exist, kernel CPU idle level ID 4 (state4) latency
is searched for in sysfs. Finally, if the state4 directory in sysfs is not found,
the last latency fallback value is `10` us. The value is encoded and written into
the kernel's PM QoS file `/dev/cpu_dma_latency`.
====
+
.Specifying fallback C-state values using 'None'.
====
----
[cpu]
force_latency=cstate.name:XYZ|None
----
In this case, if C-state with the name `XYZ` does not exist
[option]`force_latency`, no latency value will be written into the
kernel's PM QoS file, and no errors will be reported due to the
presence of 'None'.
====
`min_perf_pct, max_perf_pct, no_turbo`:::
These options set the internals of the Intel P-State driver exposed via the kernel's
`sysfs` interface.
+
.Adjusting the configuration of the Intel P-State driver
====
----
[cpu]
min_perf_pct=100
----
Limit the minimum P-State that will be requested by the driver. It states
it as a percentage of the max (non-turbo) performance level.
====
+
`pm_qos_resume_latency_us`:::
This option allow to set specific latency for all cpus or specific ones.
====
----
[cpu]
pm_qos_resume_latency_us=n/a
----
Special value that disables C-states completely.
====
----
[cpu]
pm_qos_resume_latency_us=0
----
Allows all C-states.
====
----
[cpu]
pm_qos_resume_latency_us=100
----
Allows any C-state with a resume latency less than value.
"""
def __init__(self, *args, **kwargs):
super(CPULatencyPlugin, self).__init__(*args, **kwargs)
self._has_pm_qos = True
self._arch = "x86_64"
self._is_x86 = False
self._is_intel = False
self._is_amd = False
self._has_energy_perf_bias = False
self._has_intel_pstate = False
self._has_amd_pstate = False
self._has_pm_qos_resume_latency_us = None
self._min_perf_pct_save = None
self._max_perf_pct_save = None
self._no_turbo_save = None
self._governors_map = {}
self._cmd = commands()
self._flags = None
def _init_devices(self):
self._devices_supported = True
self._free_devices = set()
# current list of devices
for device in self._hardware_inventory.get_devices("cpu"):
self._free_devices.add(device.sys_name)
self._assigned_devices = set()
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("cpu", x) for x in devices]
@classmethod
def _get_config_options(self):
return {
"load_threshold" : 0.2,
"latency_low" : 100,
"latency_high" : 1000,
"force_latency" : None,
"governor" : None,
"sampling_down_factor" : None,
"energy_perf_bias" : None,
"min_perf_pct" : None,
"max_perf_pct" : None,
"no_turbo" : None,
"pm_qos_resume_latency_us": None,
"energy_performance_preference" : None,
}
def _check_arch(self):
intel_archs = [ "x86_64", "i686", "i585", "i486", "i386" ]
self._arch = platform.machine()
if self._arch in intel_archs:
# Possible other x86 vendors (from arch/x86/kernel/cpu/*):
# "CentaurHauls", "CyrixInstead", "Geode by NSC", "HygonGenuine", "GenuineTMx86",
# "TransmetaCPU", "UMC UMC UMC"
cpu = procfs.cpuinfo()
vendor = cpu.tags.get("vendor_id")
if vendor == "GenuineIntel":
self._is_intel = True
elif vendor == "AuthenticAMD" or vendor == "HygonGenuine":
self._is_amd = True
else:
# We always assign Intel, unless we know better
self._is_intel = True
log.info("We are running on an x86 %s platform" % vendor)
else:
log.info("We are running on %s (non x86)" % self._arch)
if self._is_intel:
# Check for x86_energy_perf_policy, ignore if not available / supported
self._check_energy_perf_bias()
# Check for intel_pstate
self._check_intel_pstate()
if self._is_amd:
# Check for amd-pstate
self._check_amd_pstate()
def _check_energy_perf_bias(self):
self._has_energy_perf_bias = False
retcode_unsupported = 1
retcode, out = self._cmd.execute(["x86_energy_perf_policy", "-r"], no_errors = [errno.ENOENT, retcode_unsupported])
# With recent versions of the tool, a zero exit code is
# returned even if EPB is not supported. The output is empty
# in that case, however.
if retcode == 0 and out != "":
self._has_energy_perf_bias = True
elif retcode < 0:
log.warning("unable to run x86_energy_perf_policy tool, ignoring CPU energy performance bias, is the tool installed?")
else:
log.warning("your CPU doesn't support MSR_IA32_ENERGY_PERF_BIAS, ignoring CPU energy performance bias")
def _check_intel_pstate(self):
self._has_intel_pstate = os.path.exists("/sys/devices/system/cpu/intel_pstate")
if self._has_intel_pstate:
log.info("intel_pstate detected")
def _check_amd_pstate(self):
self._has_amd_pstate = os.path.exists("/sys/devices/system/cpu/amd_pstate")
if self._has_amd_pstate:
log.info("amd-pstate detected")
def _get_cpuinfo_flags(self):
if self._flags is None:
self._flags = procfs.cpuinfo().tags.get("flags", [])
return self._flags
def _is_cpu_online(self, device):
sd = str(device)
return self._cmd.is_cpu_online(str(device).replace("cpu", ""))
def _cpu_has_scaling_governor(self, device):
return os.path.exists("/sys/devices/system/cpu/%s/cpufreq/scaling_governor" % device)
def _check_cpu_can_change_governor(self, device):
if not self._is_cpu_online(device):
log.debug("'%s' is not online, skipping" % device)
return False
if not self._cpu_has_scaling_governor(device):
log.debug("there is no scaling governor fo '%s', skipping" % device)
return False
return True
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
# only the first instance of the plugin can control the latency
if list(self._instances.values())[0] == instance:
instance._first_instance = True
try:
self._cpu_latency_fd = os.open(consts.PATH_CPU_DMA_LATENCY, os.O_WRONLY)
except OSError:
log.error("Unable to open '%s', disabling PM_QoS control" % consts.PATH_CPU_DMA_LATENCY)
self._has_pm_qos = False
self._latency = None
if instance.options["force_latency"] is None and instance.options["pm_qos_resume_latency_us"] is None:
instance._load_monitor = self._monitors_repository.create("load", None)
instance._has_dynamic_tuning = True
else:
instance._load_monitor = None
self._check_arch()
else:
instance._first_instance = False
log.info("Latency settings from non-first CPU plugin instance '%s' will be ignored." % instance.name)
try:
instance._first_device = list(instance.assigned_devices)[0]
except IndexError:
instance._first_device = None
def _instance_cleanup(self, instance):
if instance._first_instance:
if self._has_pm_qos:
os.close(self._cpu_latency_fd)
if instance._load_monitor is not None:
self._monitors_repository.delete(instance._load_monitor)
def _get_intel_pstate_attr(self, attr):
return self._cmd.read_file("/sys/devices/system/cpu/intel_pstate/%s" % attr, None).strip()
def _set_intel_pstate_attr(self, attr, val):
if val is not None:
self._cmd.write_to_file("/sys/devices/system/cpu/intel_pstate/%s" % attr, val)
def _getset_intel_pstate_attr(self, attr, value):
if value is None:
return None
v = self._get_intel_pstate_attr(attr)
self._set_intel_pstate_attr(attr, value)
return v
def _instance_apply_static(self, instance):
super(CPULatencyPlugin, self)._instance_apply_static(instance)
if not instance._first_instance:
return
force_latency_value = self._variables.expand(
instance.options["force_latency"])
if force_latency_value is not None:
self._set_latency(force_latency_value)
if self._has_intel_pstate:
new_value = self._variables.expand(
instance.options["min_perf_pct"])
self._min_perf_pct_save = self._getset_intel_pstate_attr(
"min_perf_pct", new_value)
new_value = self._variables.expand(
instance.options["max_perf_pct"])
self._max_perf_pct_save = self._getset_intel_pstate_attr(
"max_perf_pct", new_value)
new_value = self._variables.expand(
instance.options["no_turbo"])
self._no_turbo_save = self._getset_intel_pstate_attr(
"no_turbo", new_value)
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
super(CPULatencyPlugin, self)._instance_unapply_static(instance, rollback)
if instance._first_instance and self._has_intel_pstate:
self._set_intel_pstate_attr("min_perf_pct", self._min_perf_pct_save)
self._set_intel_pstate_attr("max_perf_pct", self._max_perf_pct_save)
self._set_intel_pstate_attr("no_turbo", self._no_turbo_save)
def _instance_apply_dynamic(self, instance, device):
self._instance_update_dynamic(instance, device)
def _instance_update_dynamic(self, instance, device):
assert(instance._first_instance)
if device != instance._first_device:
return
load = instance._load_monitor.get_load()["system"]
if load < instance.options["load_threshold"]:
self._set_latency(instance.options["latency_high"])
else:
self._set_latency(instance.options["latency_low"])
def _instance_unapply_dynamic(self, instance, device):
pass
def _str2int(self, s):
try:
return int(s)
except (ValueError, TypeError):
return None
def _read_cstates_latency(self):
self.cstates_latency = {}
for d in os.listdir(cpuidle_states_path):
cstate_path = cpuidle_states_path + "/%s/" % d
name = self._cmd.read_file(cstate_path + "name", err_ret = None, no_error = True)
latency = self._cmd.read_file(cstate_path + "latency", err_ret = None, no_error = True)
if name is not None and latency is not None:
latency = self._str2int(latency)
if latency is not None:
self.cstates_latency[name.strip()] = latency
def _get_latency_by_cstate_name(self, name, no_zero=False):
log.debug("getting latency for cstate with name '%s'" % name)
if self.cstates_latency is None:
log.debug("reading cstates latency table")
self._read_cstates_latency()
latency = self.cstates_latency.get(name, None)
if no_zero and latency == 0:
log.debug("skipping latency 0 as set by param")
return None
log.debug("cstate name mapped to latency: %s" % str(latency))
return latency
def _get_latency_by_cstate_id(self, lid, no_zero=False):
log.debug("getting latency for cstate with ID '%s'" % str(lid))
lid = self._str2int(lid)
if lid is None:
log.debug("cstate ID is invalid")
return None
latency_path = cpuidle_states_path + "/%s/latency" % ("state%d" % lid)
latency = self._str2int(self._cmd.read_file(latency_path, err_ret = None, no_error = True))
if no_zero and latency == 0:
log.debug("skipping latency 0 as set by param")
return None
log.debug("cstate ID mapped to latency: %s" % str(latency))
return latency
# returns (latency, skip), skip means we want to skip latency settings
def _parse_latency(self, latency, allow_na=False):
self.cstates_latency = None
latencies = str(latency).split("|")
log.debug("parsing latency '%s', allow_na '%s'" % (latency, allow_na))
for latency in latencies:
try:
latency = int(latency)
log.debug("parsed directly specified latency value: %d" % latency)
except ValueError:
if latency[0:18] == "cstate.id_no_zero:":
latency = self._get_latency_by_cstate_id(latency[18:], no_zero=True)
elif latency[0:10] == "cstate.id:":
latency = self._get_latency_by_cstate_id(latency[10:])
elif latency[0:20] == "cstate.name_no_zero:":
latency = self._get_latency_by_cstate_name(latency[20:], no_zero=True)
elif latency[0:12] == "cstate.name:":
latency = self._get_latency_by_cstate_name(latency[12:])
elif latency in ["none", "None"]:
log.debug("latency 'none' specified")
return None, True
elif allow_na and latency == "n/a":
log.debug("latency 'n/a' specified")
pass
else:
log.debug("invalid latency specified: '%s'" % str(latency))
latency = None
if latency is not None:
break
return latency, False
def _set_latency(self, latency):
latency, skip = self._parse_latency(latency)
if not skip and self._has_pm_qos:
if latency is None:
log.error("unable to evaluate latency value (probably wrong settings in the 'cpu' section of current profile), disabling PM QoS")
self._has_pm_qos = False
elif self._latency != latency:
log.info("setting new cpu latency %d" % latency)
latency_bin = struct.pack("i", latency)
os.write(self._cpu_latency_fd, latency_bin)
self._latency = latency
def _get_available_governors(self, device):
return self._cmd.read_file("/sys/devices/system/cpu/%s/cpufreq/scaling_available_governors" % device).strip().split()
@command_set("governor", per_device=True)
def _set_governor(self, governors, device, sim, remove):
if not self._check_cpu_can_change_governor(device):
return None
governors = str(governors)
governors = governors.split("|")
governors = [governor.strip() for governor in governors]
for governor in governors:
if len(governor) == 0:
log.error("The 'governor' option contains an empty value.")
return None
available_governors = self._get_available_governors(device)
for governor in governors:
if governor in available_governors:
if not sim:
log.info("setting governor '%s' on cpu '%s'"
% (governor, device))
self._cmd.write_to_file("/sys/devices/system/cpu/%s/cpufreq/scaling_governor"
% device, governor, no_error = [errno.ENOENT] if remove else False)
break
elif not sim:
log.debug("Ignoring governor '%s' on cpu '%s', it is not supported"
% (governor, device))
else:
log.warn("None of the scaling governors is supported: %s"
% ", ".join(governors))
governor = None
return governor
@command_get("governor")
def _get_governor(self, device, ignore_missing=False):
governor = None
if not self._check_cpu_can_change_governor(device):
return None
data = self._cmd.read_file("/sys/devices/system/cpu/%s/cpufreq/scaling_governor" % device, no_error=ignore_missing).strip()
if len(data) > 0:
governor = data
if governor is None:
log.error("could not get current governor on cpu '%s'" % device)
return governor
def _sampling_down_factor_path(self, governor = "ondemand"):
return "/sys/devices/system/cpu/cpufreq/%s/sampling_down_factor" % governor
@command_set("sampling_down_factor", per_device = True, priority = 10)
def _set_sampling_down_factor(self, sampling_down_factor, device, sim, remove):
val = None
# hack to clear governors map when the profile starts unloading
# TODO: this should be handled better way, by e.g. currently non-implemented
# Plugin.profile_load_finished() method
if device in self._governors_map:
self._governors_map.clear()
self._governors_map[device] = None
governor = self._get_governor(device)
if governor is None:
log.debug("ignoring sampling_down_factor setting for CPU '%s', cannot match governor" % device)
return None
if governor not in list(self._governors_map.values()):
self._governors_map[device] = governor
path = self._sampling_down_factor_path(governor)
if not os.path.exists(path):
log.debug("ignoring sampling_down_factor setting for CPU '%s', governor '%s' doesn't support it" % (device, governor))
return None
val = str(sampling_down_factor)
if not sim:
log.info("setting sampling_down_factor to '%s' for governor '%s'" % (val, governor))
self._cmd.write_to_file(path, val, no_error = [errno.ENOENT] if remove else False)
return val
@command_get("sampling_down_factor")
def _get_sampling_down_factor(self, device, ignore_missing=False):
governor = self._get_governor(device, ignore_missing=ignore_missing)
if governor is None:
return None
path = self._sampling_down_factor_path(governor)
if not os.path.exists(path):
return None
return self._cmd.read_file(path).strip()
def _try_set_energy_perf_bias(self, cpu_id, value):
(retcode, out, err_msg) = self._cmd.execute(
["x86_energy_perf_policy",
"-c", cpu_id,
str(value)
],
return_err = True)
return (retcode, err_msg)
def _pstate_preference_path(self, cpu_id, available = False):
return "/sys/devices/system/cpu/cpufreq/policy%s/energy_performance_%s" % (cpu_id, "available_preferences" if available else "preference")
def _energy_perf_bias_path(self, cpu_id):
return "/sys/devices/system/cpu/cpu%s/power/energy_perf_bias" % cpu_id
@command_set("energy_perf_bias", per_device=True)
def _set_energy_perf_bias(self, energy_perf_bias, device, sim, remove):
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
cpu_id = device.lstrip("cpu")
vals = energy_perf_bias.split('|')
# It should be writen straight to sysfs energy_perf_bias file if requested on newer processors
# see rhbz#2095829
if consts.CFG_CPU_EPP_FLAG in self._get_cpuinfo_flags():
energy_perf_bias_path = self._energy_perf_bias_path(cpu_id)
if os.path.exists(energy_perf_bias_path):
if not sim:
for val in vals:
val = val.strip()
if self._cmd.write_to_file(energy_perf_bias_path, val, \
no_error = [errno.ENOENT] if remove else False):
log.info("energy_perf_bias successfully set to '%s' on cpu '%s'"
% (val, device))
break
else:
log.error("Failed to set energy_perf_bias on cpu '%s'. Is the value in the profile correct?"
% device)
return str(energy_perf_bias)
else:
log.error("Failed to set energy_perf_bias on cpu '%s' because energy_perf_bias file does not exist."
% device)
return None
elif self._has_energy_perf_bias:
if not sim:
for val in vals:
val = val.strip()
log.debug("Trying to set energy_perf_bias to '%s' on cpu '%s'"
% (val, device))
(retcode, err_msg) = self._try_set_energy_perf_bias(
cpu_id, val)
if retcode == 0:
log.info("energy_perf_bias successfully set to '%s' on cpu '%s'"
% (val, device))
break
elif retcode < 0:
log.error("Failed to set energy_perf_bias: %s"
% err_msg)
break
else:
log.debug("Could not set energy_perf_bias to '%s' on cpu '%s', trying another value"
% (val, device))
else:
log.error("Failed to set energy_perf_bias on cpu '%s'. Is the value in the profile correct?"
% device)
return str(energy_perf_bias)
else:
return None
def _try_parse_num(self, s):
try:
v = int(s)
except ValueError as e:
try:
v = int(s, 16)
except ValueError as e:
v = s
return v
# Before Linux 4.13
def _energy_perf_policy_to_human(self, s):
return {0:"performance", 6:"normal", 15:"powersave"}.get(self._try_parse_num(s), s)
# Since Linux 4.13
def _energy_perf_policy_to_human_v2(self, s):
return {0:"performance",
4:"balance-performance",
6:"normal",
8:"balance-power",
15:"power",
}.get(self._try_parse_num(s), s)
@command_get("energy_perf_bias")
def _get_energy_perf_bias(self, device, ignore_missing=False):
energy_perf_bias = None
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
cpu_id = device.lstrip("cpu")
if consts.CFG_CPU_EPP_FLAG in self._get_cpuinfo_flags():
energy_perf_bias_path = self._energy_perf_bias_path(cpu_id)
if os.path.exists(energy_perf_bias_path):
energy_perf_bias = self._energy_perf_policy_to_human_v2(self._cmd.read_file(energy_perf_bias_path))
elif self._has_energy_perf_bias:
retcode, lines = self._cmd.execute(["x86_energy_perf_policy", "-c", cpu_id, "-r"])
if retcode == 0:
for line in lines.splitlines():
l = line.split()
if len(l) == 2:
energy_perf_bias = self._energy_perf_policy_to_human(l[1])
break
elif len(l) == 3:
energy_perf_bias = self._energy_perf_policy_to_human_v2(l[2])
break
return energy_perf_bias
def _pm_qos_resume_latency_us_path(self, device):
return "/sys/devices/system/cpu/%s/power/pm_qos_resume_latency_us" % device
def _check_pm_qos_resume_latency_us(self, device):
if self._has_pm_qos_resume_latency_us is None:
self._has_pm_qos_resume_latency_us = os.path.exists(self._pm_qos_resume_latency_us_path(device))
if not self._has_pm_qos_resume_latency_us:
log.info("Option 'pm_qos_resume_latency_us' is not supported on current hardware.")
return self._has_pm_qos_resume_latency_us
@command_set("pm_qos_resume_latency_us", per_device=True)
def _set_pm_qos_resume_latency_us(self, pm_qos_resume_latency_us, device, sim, remove):
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
latency, skip = self._parse_latency(pm_qos_resume_latency_us, allow_na=True)
if skip or not self._check_pm_qos_resume_latency_us(device):
return None
if latency is None or (latency != "n/a" and latency < 0):
log.warning("Invalid pm_qos_resume_latency_us specified: '%s', cpu: '%s'." % (pm_qos_resume_latency_us, device))
return None
if not sim:
self._cmd.write_to_file(self._pm_qos_resume_latency_us_path(device), latency, \
no_error = [errno.ENOENT] if remove else False)
return latency
@command_get("pm_qos_resume_latency_us")
def _get_pm_qos_resume_latency_us(self, device, ignore_missing=False):
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
if not self._check_pm_qos_resume_latency_us(device):
return None
return self._cmd.read_file(self._pm_qos_resume_latency_us_path(device), no_error=ignore_missing).strip()
@command_set("energy_performance_preference", per_device=True)
def _set_energy_performance_preference(self, energy_performance_preference, device, sim, remove):
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
cpu_id = device.lstrip("cpu")
if os.path.exists(self._pstate_preference_path(cpu_id, True)):
vals = energy_performance_preference.split('|')
if not sim:
avail_vals = set(self._cmd.read_file(self._pstate_preference_path(cpu_id, True)).split())
for val in vals:
if val in avail_vals:
self._cmd.write_to_file(self._pstate_preference_path(cpu_id), val, \
no_error = [errno.ENOENT] if remove else False)
log.info("Setting energy_performance_preference value '%s' for cpu '%s'" % (val, device))
break
else:
log.warn("energy_performance_preference value '%s' unavailable for cpu '%s'" % (val, device))
else:
log.error("Failed to set energy_performance_preference on cpu '%s'. Is the value in the profile correct?"
% device)
return str(energy_performance_preference)
else:
log.debug("energy_performance_available_preferences file missing, which can happen if the system is booted without a P-state driver.")
return None
@command_get("energy_performance_preference")
def _get_energy_performance_preference(self, device, ignore_missing=False):
if not self._is_cpu_online(device):
log.debug("%s is not online, skipping" % device)
return None
cpu_id = device.lstrip("cpu")
# read the EPP hint used by the intel_pstate and amd-pstate CPU scaling drivers
if os.path.exists(self._pstate_preference_path(cpu_id, True)):
return self._cmd.read_file(self._pstate_preference_path(cpu_id)).strip()
else:
log.debug("energy_performance_available_preferences file missing, which can happen if the system is booted without a P-state driver.")
return None
plugins/plugin_disk.py 0000644 00000041231 15035135375 0011117 0 ustar 00 import errno
from . import hotplug
from .decorators import *
import tuned.logs
import tuned.consts as consts
from tuned.utils.commands import commands
import os
import re
log = tuned.logs.get()
class DiskPlugin(hotplug.Plugin):
"""
`disk`::
Plug-in for tuning various block device options. This plug-in can also
dynamically change the advanced power management and spindown timeout
setting for a drive according to the current drive utilization. The
dynamic tuning is controlled by the [option]`dynamic` and the global
[option]`dynamic_tuning` option in `tuned-main.conf`.
+
The disk plug-in operates on all supported block devices unless a
comma separated list of [option]`devices` is passed to it.
+
.Operate only on the sda block device
====
----
[disk]
# Comma separated list of devices, all devices if commented out.
devices=sda
----
====
+
The [option]`elevator` option sets the Linux I/O scheduler.
+
.Use the bfq I/O scheduler on xvda block device
====
----
[disk]
device=xvda
elevator=bfq
----
====
+
The [option]`scheduler_quantum` option only applies to the CFQ I/O
scheduler. It defines the number of I/O requests that CFQ sends to
one device at one time, essentially limiting queue depth. The default
value is 8 requests. The device being used may support greater queue
depth, but increasing the value of quantum will also increase latency,
especially for large sequential write work loads.
+
The [option]`apm` option sets the Advanced Power Management feature
on drives that support it. It corresponds to using the `-B` option of
the `hdparm` utility. The [option]`spindown` option puts the drive
into idle (low-power) mode, and also sets the standby (spindown)
timeout for the drive. It corresponds to using `-S` option of the
`hdparm` utility.
+
.Use a medium-agressive power management with spindown
====
----
[disk]
apm=128
spindown=6
----
====
+
The [option]`readahead` option controls how much extra data the
operating system reads from disk when performing sequential
I/O operations. Increasing the `readahead` value might improve
performance in application environments where sequential reading of
large files takes place. The default unit for readahead is KiB. This
can be adjusted to sectors by specifying the suffix 's'. If the
suffix is specified, there must be at least one space between the
number and suffix (for example, `readahead=8192 s`).
+
.Set the `readahead` to 4MB unless already set to a higher value
====
----
[disk]
readahead=>4096
----
====
The disk readahead value can be multiplied by the constant
specified by the [option]`readahead_multiply` option.
"""
def __init__(self, *args, **kwargs):
super(DiskPlugin, self).__init__(*args, **kwargs)
self._power_levels = [254, 225, 195, 165, 145, 125, 105, 85, 70, 55, 30, 20]
self._spindown_levels = [0, 250, 230, 210, 190, 170, 150, 130, 110, 90, 70, 60]
self._levels = len(self._power_levels)
self._level_steps = 6
self._load_smallest = 0.01
self._cmd = commands()
def _init_devices(self):
super(DiskPlugin, self)._init_devices()
self._devices_supported = True
self._use_hdparm = True
self._free_devices = set()
self._hdparm_apm_device_support = dict()
for device in self._hardware_inventory.get_devices("block"):
if self._device_is_supported(device):
self._free_devices.add(device.sys_name)
self._assigned_devices = set()
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("block", x) for x in devices]
def _is_hdparm_apm_supported(self, device):
if not self._use_hdparm:
return False
if device in self._hdparm_apm_device_support:
return self._hdparm_apm_device_support[device]
(rc, out, err_msg) = self._cmd.execute(["hdparm", "-C", "/dev/%s" % device], \
no_errors = [errno.ENOENT], return_err=True)
if rc == -errno.ENOENT:
log.warn("hdparm command not found, ignoring for other devices")
self._use_hdparm = False
return False
elif rc:
log.info("Device '%s' not supported by hdparm" % device)
log.debug("(rc: %s, msg: '%s')" % (rc, err_msg))
self._hdparm_apm_device_support[device] = False
return False
elif "unknown" in out:
log.info("Driver for device '%s' does not support apm command" % device)
self._hdparm_apm_device_support[device] = False
return False
self._hdparm_apm_device_support[device] = True
return True
@classmethod
def _device_is_supported(cls, device):
return device.device_type == "disk" and \
device.attributes.get("removable", None) == b"0" and \
(device.parent is None or \
device.parent.subsystem in ["scsi", "virtio", "xen", "nvme"])
def _hardware_events_init(self):
self._hardware_inventory.subscribe(self, "block", self._hardware_events_callback)
def _hardware_events_cleanup(self):
self._hardware_inventory.unsubscribe(self)
def _hardware_events_callback(self, event, device):
if self._device_is_supported(device) or event == "remove":
super(DiskPlugin, self)._hardware_events_callback(event, device)
def _added_device_apply_tuning(self, instance, device_name):
if instance._load_monitor is not None:
instance._load_monitor.add_device(device_name)
super(DiskPlugin, self)._added_device_apply_tuning(instance, device_name)
def _removed_device_unapply_tuning(self, instance, device_name):
if instance._load_monitor is not None:
instance._load_monitor.remove_device(device_name)
super(DiskPlugin, self)._removed_device_unapply_tuning(instance, device_name)
@classmethod
def _get_config_options(cls):
return {
"dynamic" : True, # FIXME: do we want this default?
"elevator" : None,
"apm" : None,
"spindown" : None,
"readahead" : None,
"readahead_multiply" : None,
"scheduler_quantum" : None,
}
@classmethod
def _get_config_options_used_by_dynamic(cls):
return [
"apm",
"spindown",
]
def _instance_init(self, instance):
instance._has_static_tuning = True
self._apm_errcnt = 0
self._spindown_errcnt = 0
if self._option_bool(instance.options["dynamic"]):
instance._has_dynamic_tuning = True
instance._load_monitor = \
self._monitors_repository.create(
"disk", instance.assigned_devices)
instance._device_idle = {}
instance._stats = {}
instance._idle = {}
instance._spindown_change_delayed = {}
else:
instance._has_dynamic_tuning = False
instance._load_monitor = None
def _instance_cleanup(self, instance):
if instance._load_monitor is not None:
self._monitors_repository.delete(instance._load_monitor)
instance._load_monitor = None
def _update_errcnt(self, rc, spindown):
if spindown:
s = "spindown"
cnt = self._spindown_errcnt
else:
s = "apm"
cnt = self._apm_errcnt
if cnt >= consts.ERROR_THRESHOLD:
return
if rc == 0:
cnt = 0
elif rc == -errno.ENOENT:
self._spindown_errcnt = self._apm_errcnt = consts.ERROR_THRESHOLD + 1
log.warn("hdparm command not found, ignoring future set_apm / set_spindown commands")
return
else:
cnt += 1
if cnt == consts.ERROR_THRESHOLD:
log.info("disabling set_%s command: too many consecutive errors" % s)
if spindown:
self._spindown_errcnt = cnt
else:
self._apm_errcnt = cnt
def _change_spindown(self, instance, device, new_spindown_level):
log.debug("changing spindown to %d" % new_spindown_level)
(rc, out) = self._cmd.execute(["hdparm", "-S%d" % new_spindown_level, "/dev/%s" % device], no_errors = [errno.ENOENT])
self._update_errcnt(rc, True)
instance._spindown_change_delayed[device] = False
def _drive_spinning(self, device):
(rc, out) = self._cmd.execute(["hdparm", "-C", "/dev/%s" % device], no_errors = [errno.ENOENT])
return not "standby" in out and not "sleeping" in out
def _instance_update_dynamic(self, instance, device):
if not self._is_hdparm_apm_supported(device):
return
load = instance._load_monitor.get_device_load(device)
if load is None:
return
if not device in instance._stats:
self._init_stats_and_idle(instance, device)
self._update_stats(instance, device, load)
self._update_idle(instance, device)
stats = instance._stats[device]
idle = instance._idle[device]
# level change decision
if idle["level"] + 1 < self._levels and idle["read"] >= self._level_steps and idle["write"] >= self._level_steps:
level_change = 1
elif idle["level"] > 0 and (idle["read"] == 0 or idle["write"] == 0):
level_change = -1
else:
level_change = 0
# change level if decided
if level_change != 0:
idle["level"] += level_change
new_power_level = self._power_levels[idle["level"]]
new_spindown_level = self._spindown_levels[idle["level"]]
log.debug("tuning level changed to %d" % idle["level"])
if self._spindown_errcnt < consts.ERROR_THRESHOLD:
if not self._drive_spinning(device) and level_change > 0:
log.debug("delaying spindown change to %d, drive has already spun down" % new_spindown_level)
instance._spindown_change_delayed[device] = True
else:
self._change_spindown(instance, device, new_spindown_level)
if self._apm_errcnt < consts.ERROR_THRESHOLD:
log.debug("changing APM_level to %d" % new_power_level)
(rc, out) = self._cmd.execute(["hdparm", "-B%d" % new_power_level, "/dev/%s" % device], no_errors = [errno.ENOENT])
self._update_errcnt(rc, False)
elif instance._spindown_change_delayed[device] and self._drive_spinning(device):
new_spindown_level = self._spindown_levels[idle["level"]]
self._change_spindown(instance, device, new_spindown_level)
log.debug("%s load: read %0.2f, write %0.2f" % (device, stats["read"], stats["write"]))
log.debug("%s idle: read %d, write %d, level %d" % (device, idle["read"], idle["write"], idle["level"]))
def _init_stats_and_idle(self, instance, device):
instance._stats[device] = { "new": 11 * [0], "old": 11 * [0], "max": 11 * [1] }
instance._idle[device] = { "level": 0, "read": 0, "write": 0 }
instance._spindown_change_delayed[device] = False
def _update_stats(self, instance, device, new_load):
instance._stats[device]["old"] = old_load = instance._stats[device]["new"]
instance._stats[device]["new"] = new_load
# load difference
diff = [new_old[0] - new_old[1] for new_old in zip(new_load, old_load)]
instance._stats[device]["diff"] = diff
# adapt maximum expected load if the difference is higher
old_max_load = instance._stats[device]["max"]
max_load = [max(pair) for pair in zip(old_max_load, diff)]
instance._stats[device]["max"] = max_load
# read/write ratio
instance._stats[device]["read"] = float(diff[1]) / float(max_load[1])
instance._stats[device]["write"] = float(diff[5]) / float(max_load[5])
def _update_idle(self, instance, device):
# increase counter if there is no load, otherwise reset the counter
for operation in ["read", "write"]:
if instance._stats[device][operation] < self._load_smallest:
instance._idle[device][operation] += 1
else:
instance._idle[device][operation] = 0
def _instance_apply_dynamic(self, instance, device):
# At the moment we support dynamic tuning just for devices compatible with hdparm apm commands
# If in future will be added new functionality not connected to this command,
# it is needed to change it here
if not self._is_hdparm_apm_supported(device):
log.info("There is no dynamic tuning available for device '%s' at time" % device)
else:
super(DiskPlugin, self)._instance_apply_dynamic(instance, device)
def _instance_unapply_dynamic(self, instance, device):
pass
def _sysfs_path(self, device, suffix, prefix = "/sys/block/"):
if "/" in device:
dev = os.path.join(prefix, device.replace("/", "!"), suffix)
if os.path.exists(dev):
return dev
return os.path.join(prefix, device, suffix)
def _elevator_file(self, device):
return self._sysfs_path(device, "queue/scheduler")
@command_set("elevator", per_device=True)
def _set_elevator(self, value, device, sim, remove):
sys_file = self._elevator_file(device)
if not sim:
self._cmd.write_to_file(sys_file, value, \
no_error = [errno.ENOENT] if remove else False)
return value
@command_get("elevator")
def _get_elevator(self, device, ignore_missing=False):
sys_file = self._elevator_file(device)
# example of scheduler file content:
# noop deadline [cfq]
return self._cmd.get_active_option(self._cmd.read_file(sys_file, no_error=ignore_missing))
@command_set("apm", per_device=True)
def _set_apm(self, value, device, sim, remove):
if not self._is_hdparm_apm_supported(device):
if not sim:
log.info("apm option is not supported for device '%s'" % device)
return None
else:
return str(value)
if self._apm_errcnt < consts.ERROR_THRESHOLD:
if not sim:
(rc, out) = self._cmd.execute(["hdparm", "-B", str(value), "/dev/" + device], no_errors = [errno.ENOENT])
self._update_errcnt(rc, False)
return str(value)
else:
return None
@command_get("apm")
def _get_apm(self, device, ignore_missing=False):
if not self._is_hdparm_apm_supported(device):
if not ignore_missing:
log.info("apm option is not supported for device '%s'" % device)
return None
value = None
err = False
(rc, out) = self._cmd.execute(["hdparm", "-B", "/dev/" + device], no_errors = [errno.ENOENT])
if rc == -errno.ENOENT:
return None
elif rc != 0:
err = True
else:
m = re.match(r".*=\s*(\d+).*", out, re.S)
if m:
try:
value = int(m.group(1))
except ValueError:
err = True
if err:
log.error("could not get current APM settings for device '%s'" % device)
return value
@command_set("spindown", per_device=True)
def _set_spindown(self, value, device, sim, remove):
if not self._is_hdparm_apm_supported(device):
if not sim:
log.info("spindown option is not supported for device '%s'" % device)
return None
else:
return str(value)
if self._spindown_errcnt < consts.ERROR_THRESHOLD:
if not sim:
(rc, out) = self._cmd.execute(["hdparm", "-S", str(value), "/dev/" + device], no_errors = [errno.ENOENT])
self._update_errcnt(rc, True)
return str(value)
else:
return None
@command_get("spindown")
def _get_spindown(self, device, ignore_missing=False):
if not self._is_hdparm_apm_supported(device):
if not ignore_missing:
log.info("spindown option is not supported for device '%s'" % device)
return None
# There's no way how to get current/old spindown value, hardcoding vendor specific 253
return 253
def _readahead_file(self, device):
return self._sysfs_path(device, "queue/read_ahead_kb")
def _parse_ra(self, value):
val = str(value).split(None, 1)
try:
v = int(val[0])
except ValueError:
return None
if len(val) > 1 and val[1][0] == "s":
# v *= 512 / 1024
v /= 2
return v
@command_set("readahead", per_device=True)
def _set_readahead(self, value, device, sim, remove):
sys_file = self._readahead_file(device)
val = self._parse_ra(value)
if val is None:
log.error("Invalid readahead value '%s' for device '%s'" % (value, device))
else:
if not sim:
self._cmd.write_to_file(sys_file, "%d" % val, \
no_error = [errno.ENOENT] if remove else False)
return val
@command_get("readahead")
def _get_readahead(self, device, ignore_missing=False):
sys_file = self._readahead_file(device)
value = self._cmd.read_file(sys_file, no_error=ignore_missing).strip()
if len(value) == 0:
return None
return int(value)
@command_custom("readahead_multiply", per_device=True)
def _multiply_readahead(self, enabling, multiplier, device, verify, ignore_missing):
if verify:
return None
storage_key = self._storage_key(
command_name = "readahead_multiply",
device_name = device)
if enabling:
old_readahead = self._get_readahead(device)
if old_readahead is None:
return
new_readahead = int(float(multiplier) * old_readahead)
self._storage.set(storage_key, old_readahead)
self._set_readahead(new_readahead, device, False)
else:
old_readahead = self._storage.get(storage_key)
if old_readahead is None:
return
self._set_readahead(old_readahead, device, False)
self._storage.unset(storage_key)
def _scheduler_quantum_file(self, device):
return self._sysfs_path(device, "queue/iosched/quantum")
@command_set("scheduler_quantum", per_device=True)
def _set_scheduler_quantum(self, value, device, sim, remove):
sys_file = self._scheduler_quantum_file(device)
if not sim:
self._cmd.write_to_file(sys_file, "%d" % int(value), \
no_error = [errno.ENOENT] if remove else False)
return value
@command_get("scheduler_quantum")
def _get_scheduler_quantum(self, device, ignore_missing=False):
sys_file = self._scheduler_quantum_file(device)
value = self._cmd.read_file(sys_file, no_error=ignore_missing).strip()
if len(value) == 0:
if not ignore_missing:
log.info("disk_scheduler_quantum option is not supported for device '%s'" % device)
return None
return int(value)
plugins/repository.py 0000644 00000002772 15035135375 0011035 0 ustar 00 from tuned.utils.plugin_loader import PluginLoader
import tuned.plugins.base
import tuned.logs
log = tuned.logs.get()
__all__ = ["Repository"]
class Repository(PluginLoader):
def __init__(self, monitor_repository, storage_factory, hardware_inventory, device_matcher, device_matcher_udev, plugin_instance_factory, global_cfg, variables):
super(Repository, self).__init__()
self._plugins = set()
self._monitor_repository = monitor_repository
self._storage_factory = storage_factory
self._hardware_inventory = hardware_inventory
self._device_matcher = device_matcher
self._device_matcher_udev = device_matcher_udev
self._plugin_instance_factory = plugin_instance_factory
self._global_cfg = global_cfg
self._variables = variables
@property
def plugins(self):
return self._plugins
def _set_loader_parameters(self):
self._namespace = "tuned.plugins"
self._prefix = "plugin_"
self._interface = tuned.plugins.base.Plugin
def create(self, plugin_name):
log.debug("creating plugin %s" % plugin_name)
plugin_cls = self.load_plugin(plugin_name)
plugin_instance = plugin_cls(self._monitor_repository, self._storage_factory, self._hardware_inventory, self._device_matcher,\
self._device_matcher_udev, self._plugin_instance_factory, self._global_cfg, self._variables)
self._plugins.add(plugin_instance)
return plugin_instance
def delete(self, plugin):
assert isinstance(plugin, self._interface)
log.debug("removing plugin %s" % plugin)
plugin.cleanup()
self._plugins.remove(plugin)
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ServicePlugina1
`service`::
Plug-in for handling sysvinit, sysv-rc, openrc and systemd services.
+
The syntax is as follows:
+
[subs="+quotes,+macros"]
----
[service]
service.__service_name__=__commands__[,file:__file__]
----
+
Supported service-handling `_commands_` are `start`, `stop`, `enable`
and `disable`. The optional `file:__file__` directive installs an overlay
configuration file `__file__`. Multiple commands must be comma (`,`)
or semicolon (`;`) separated. If the directives conflict, the last
one is used.
+
The service plugin supports configuration overlays only for systemd.
In other init systems, this directive is ignored. The configuration
overlay files are copied to `/etc/systemd/system/__service_name__.service.d/`
directories. Upon profile unloading, the directory is removed if it is empty.
+
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+
NOTE: With non-systemd init systems, the plug-in operates on the
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+
.Start and enable the `sendmail` service with an overlay file
====
----
[service]
service.sendmail=start,enable,file:${i:PROFILE_DIR}/tuned-sendmail.conf
----
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`cpu`::
Sets the CPU governor to the value specified by the [option]`governor`
option and dynamically changes the Power Management Quality of
Service (PM QoS) CPU Direct Memory Access (DMA) latency according
to the CPU load.
`governor`:::
The [option]`governor` option of the 'cpu' plug-in supports specifying
CPU governors. Multiple governors are separated using '|'. The '|'
character is meant to represent a logical 'or' operator. Note that the
same syntax is used for the [option]`energy_perf_bias` option. *TuneD*
will set the first governor that is available on the system.
+
For example, with the following profile, *TuneD* will set the 'ondemand'
governor, if it is available. If it is not available, but the 'powersave'
governor is available, 'powersave' will be set. If neither of them are
available, the governor will not be changed.
+
.Specifying a CPU governor
====
----
[cpu]
governor=ondemand|powersave
----
====
`sampling_down_factor`:::
The sampling rate determines how frequently the governor checks
to tune the CPU. The [option]`sampling_down_factor` is a tunable
that multiplies the sampling rate when the CPU is at its highest
clock frequency thereby delaying load evaluation and improving
performance. Allowed values for sampling_down_factor are 1 to 100000.
+
.The recommended setting for jitter reduction
====
----
[cpu]
sampling_down_factor = 100
----
====
`energy_perf_bias`:::
[option]`energy_perf_bias` supports managing energy
vs. performance policy via x86 Model Specific Registers using the
`x86_energy_perf_policy` tool. Multiple alternative Energy Performance
Bias (EPB) values are supported. The alternative values are separated
using the '|' character. The following EPB values are supported
starting with kernel 4.13: "performance", "balance-performance",
"normal", "balance-power" and "power". On newer processors is value
writen straight to file (see rhbz#2095829)
+
.Specifying alternative Energy Performance Bias values
====
----
[cpu]
energy_perf_bias=powersave|power
----
*TuneD* will try to set EPB to 'powersave'. If that fails, it will
try to set it to 'power'.
====
`energy_performance_preference`:::
[option]`energy_performance_preference` supports managing energy
vs. performance hints on newer Intel and AMD processors with active P-State
CPU scaling drivers (intel_pstate or amd-pstate). Multiple alternative
Energy Performance Preferences (EPP) values are supported. The alternative
values are separated using the '|' character. Available values can be found
in `energy_performance_available_preferences` file in `CPUFreq` policy
directory in `sysfs`.
in
+
.Specifying alternative Energy Performance Hints values
====
----
[cpu]
energy_performance_preference=balance_power|power
----
*TuneD* will try to set EPP to 'balance_power'. If that fails, it will
try to set it to 'power'.
====
`latency_low, latency_high, load_threshold`:::
+
If the CPU load is lower than the value specified by
the[option]`load_threshold` option, the latency is set to the value
specified either by the [option]`latency_high` option or by the
[option]`latency_low` option.
+
`force_latency`:::
You can also force the latency to a specific value and prevent it from
dynamically changing further. To do so, set the [option]`force_latency`
option to the required latency value.
+
The maximum latency value can be specified in several ways:
+
* by a numerical value in microseconds (for example, `force_latency=10`)
* as the kernel CPU idle level ID of the maximum C-state allowed
(for example, force_latency = cstate.id:1)
* as a case sensitive name of the maximum C-state allowed
(for example, force_latency = cstate.name:C1)
* by using 'None' as a fallback value to prevent errors when alternative
C-state IDs/names do not exist. When 'None' is used in the alternatives
pipeline, all the alternatives that follow 'None' are ignored.
+
It is also possible to specify multiple fallback values separated by '|' as
the C-state names and/or IDs may not be available on some systems.
+
.Specifying fallback C-state values
====
----
[cpu]
force_latency=cstate.name:C6|cstate.id:4|10
----
This configuration tries to obtain and set the latency of C-state named C6.
If the C-state C6 does not exist, kernel CPU idle level ID 4 (state4) latency
is searched for in sysfs. Finally, if the state4 directory in sysfs is not found,
the last latency fallback value is `10` us. The value is encoded and written into
the kernel's PM QoS file `/dev/cpu_dma_latency`.
====
+
.Specifying fallback C-state values using 'None'.
====
----
[cpu]
force_latency=cstate.name:XYZ|None
----
In this case, if C-state with the name `XYZ` does not exist
[option]`force_latency`, no latency value will be written into the
kernel's PM QoS file, and no errors will be reported due to the
presence of 'None'.
====
`min_perf_pct, max_perf_pct, no_turbo`:::
These options set the internals of the Intel P-State driver exposed via the kernel's
`sysfs` interface.
+
.Adjusting the configuration of the Intel P-State driver
====
----
[cpu]
min_perf_pct=100
----
Limit the minimum P-State that will be requested by the driver. It states
it as a percentage of the max (non-turbo) performance level.
====
+
`pm_qos_resume_latency_us`:::
This option allow to set specific latency for all cpus or specific ones.
====
----
[cpu]
pm_qos_resume_latency_us=n/a
----
Special value that disables C-states completely.
====
----
[cpu]
pm_qos_resume_latency_us=0
----
Allows all C-states.
====
----
[cpu]
pm_qos_resume_latency_us=100
----
Allows any C-state with a resume latency less than value.
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`net`::
Configures network driver, hardware and Netfilter settings.
Dynamic change of the interface speed according to the interface
utilization is also supported. The dynamic tuning is controlled by
the [option]`dynamic` and the global [option]`dynamic_tuning`
option in `tuned-main.conf`.
+
The [option]`wake_on_lan` option sets wake-on-lan to the specified
value as when using the `ethtool` utility.
+
.Set Wake-on-LAN for device eth0 on MagicPacket(TM)
====
----
[net]
devices=eth0
wake_on_lan=g
----
====
+
The [option]`coalesce` option allows changing coalescing settings
for the specified network devices. The syntax is:
+
[subs="+quotes,+macros"]
----
coalesce=__param1__ __value1__ __param2__ __value2__ ... __paramN__ __valueN__
----
Note that not all the coalescing parameters are supported by all
network cards. For the list of coalescing parameters of your network
device, use `ethtool -c device`.
+
.Setting coalescing parameters rx/tx-usecs for all network devices
====
----
[net]
coalesce=rx-usecs 3 tx-usecs 16
----
====
+
The [option]`features` option allows changing
the offload parameters and other features for the specified
network devices. To query the features of your network device,
use `ethtool -k device`. The syntax of the option is the same as
the [option]`coalesce` option.
+
.Turn off TX checksumming, generic segmentation and receive offload
====
----
[net]
features=tx off gso off gro off
----
====
The [option]`pause` option allows changing the pause parameters for
the specified network devices. To query the pause parameters of your
network device, use `ethtool -a device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Disable autonegotiation
====
----
[net]
pause=autoneg off
----
====
+
The [option]`ring` option allows changing the rx/tx ring parameters
for the specified network devices. To query the ring parameters of your
network device, use `ethtool -g device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Change the number of ring entries for the Rx/Tx rings to 1024/512 respectively
=====
-----
[net]
ring=rx 1024 tx 512
-----
=====
+
The [option]`channels` option allows changing the numbers of channels
for the specified network device. A channel is an IRQ and the set
of queues that can trigger that IRQ. To query the channels parameters of your
network device, use `ethtool -l device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Set the number of multi-purpose channels to 16
=====
-----
[net]
channels=combined 16
-----
=====
+
A network device either supports rx/tx or combined queue
mode. The [option]`channels` option automatically adjusts the
parameters based on the mode supported by the device as long as a
valid configuration is requested.
+
The [option]`nf_conntrack_hashsize` option sets the size of the hash
table which stores lists of conntrack entries by writing to
`/sys/module/nf_conntrack/parameters/hashsize`.
+
.Adjust the size of the conntrack hash table
====
----
[net]
nf_conntrack_hashsize=131072
----
====
+
The [option]`txqueuelen` option allows changing txqueuelen (the length
of the transmit queue). It uses `ip` utility that is in package iproute
recommended for TuneD, so the package needs to be installed for its correct
functionality. To query the txqueuelen parameters of your network device
use `ip link show` and the current value is shown after the qlen column.
+
.Adjust the length of the transmit queue
====
----
[net]
txqueuelen=5000
----
====
+
The [option]`mtu` option allows changing MTU (Maximum Transmission Unit).
It uses `ip` utility that is in package iproute recommended for TuneD, so
the package needs to be installed for its correct functionality. To query
the MTU parameters of your network device use `ip link show` and the
current value is shown after the MTU column.
+
.Adjust the size of the MTU
====
----
[net]
mtu=9000
----
====
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Enables or disables transparent huge pages depending on value of the
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possible values `always`, `madvise` and `never`.
+
.Disable transparent hugepages
====
----
[vm]
transparent_hugepages=never
----
====
+
The [option]`transparent_hugepage.defrag` option specifies the
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+
The syntax is as follows:
+
[subs="+quotes,+macros"]
----
[service]
service.__service_name__=__commands__[,file:__file__]
----
+
Supported service-handling `_commands_` are `start`, `stop`, `enable`
and `disable`. The optional `file:__file__` directive installs an overlay
configuration file `__file__`. Multiple commands must be comma (`,`)
or semicolon (`;`) separated. If the directives conflict, the last
one is used.
+
The service plugin supports configuration overlays only for systemd.
In other init systems, this directive is ignored. The configuration
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directories. Upon profile unloading, the directory is removed if it is empty.
+
With systemd, the `start` command is implemented by `restart` in order
to allow loading of the service configuration file overlay.
+
NOTE: With non-systemd init systems, the plug-in operates on the
current runlevel only.
+
.Start and enable the `sendmail` service with an overlay file
====
----
[service]
service.sendmail=start,enable,file:${i:PROFILE_DIR}/tuned-sendmail.conf
----
The internal variable `${i:PROFILE_DIR}` points to the directory
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`mounts`::
Enables or disables barriers for mounts according to the value of the
[option]`disable_barriers` option. The [option]`disable_barriers`
option has an optional value `force` which disables barriers even
on mountpoints with write back caches. Note that only extended file
systems (ext) are supported by this plug-in.
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Gets the information about disks, partitions and mountpoints. Stores information about used filesystem and
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Checks if the device has 'write back' cache. If the cache type cannot be determined, asume some other cache.
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Checks if a given mountpoint is mounted with barriers enabled or disabled.
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Remounts partition.
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plugins/__pycache__/plugin_script.cpython-36.pyc 0000644 00000010476 15035135375 0015764 0 ustar 00 3
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� ZS )� ScriptPluginac
`script`::
Executes an external script or binary when the profile is loaded or
unloaded. You can choose an arbitrary executable.
+
IMPORTANT: The `script` plug-in is provided mainly for compatibility
with earlier releases. Prefer other *TuneD* plug-ins if they cover
the required functionality.
+
*TuneD* calls the executable with one of the following arguments:
+
--
** `start` when loading the profile
** `stop` when unloading the profile
--
+
You need to correctly implement the `stop` action in your executable
and revert all settings that you changed during the `start`
action. Otherwise, the roll-back step after changing your *TuneD*
profile will not work.
+
Bash scripts can import the [filename]`/usr/lib/tuned/functions`
Bash library and use the functions defined there. Use these
functions only for functionality that is not natively provided
by *TuneD*. If a function name starts with an underscore, such as
`_wifi_set_power_level`, consider the function private and do not
use it in your scripts, because it might change in the future.
+
Specify the path to the executable using the `script` parameter in
the plug-in configuration.
+
.Running a Bash script from a profile
====
To run a Bash script named `script.sh` that is located in the profile
directory, use:
----
[script]
script=${i:PROFILE_DIR}/script.sh
----
====
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� �� � ytt |g| t t d|dt j
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plugins/__pycache__/plugin_scsi_host.cpython-36.pyc 0000644 00000011074 15035135375 0016451 0 ustar 00 3
�<�eQ � @ sj d dl Z ddlmZ ddlT d dlZd dljZd dlm Z d dl
Z
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� ZG dd� dej�ZdS )� N� )�hotplug)�*)�commandsc s� e Zd ZdZ� fdd�Z� fdd�Zdd� Zedd � �Zd
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� fdd�Z � fdd�Z � fdd�Z
edd� �Zdd� Zdd� Zdd� Zed d d �d d � �Zed �d$d"d#��Z� ZS )%�SCSIHostPlugina�
`scsi_host`::
Tunes options for SCSI hosts.
+
The plug-in sets Aggressive Link Power Management (ALPM) to the value specified
by the [option]`alpm` option. The option takes one of three values:
`min_power`, `medium_power` and `max_performance`.
+
NOTE: ALPM is only available on SATA controllers that use the Advanced
Host Controller Interface (AHCI).
+
.ALPM setting when extended periods of idle time are expected
====
----
[scsi_host]
alpm=min_power
----
====
c s t t| �j||� t� | _d S )N)�superr �__init__r �_cmd)�self�args�kwargs)� __class__� �&/usr/lib/python3.6/plugin_scsi_host.pyr " s zSCSIHostPlugin.__init__c sV t t| �j� d| _t� | _x,| jjd�D ] }| j|�r*| jj |j
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r r �
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Zdevicesr )r
r �_get_device_objects1 s z"SCSIHostPlugin._get_device_objectsc C s
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r r r �_hardware_events_cleanup; s z'SCSIHostPlugin._hardware_events_cleanupc s | j |�r tt| �j||� d S )N)r r r r )r
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r r! )r
r r r" E s z-SCSIHostPlugin._removed_device_unapply_tuningc C s dd iS )N�alpmr )r r r r �_get_config_optionsH s z"SCSIHostPlugin._get_config_optionsc C s d|_ d|_d S )NTF)Z_has_static_tuningZ_has_dynamic_tuning)r
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|�f � d S |S )NF)�no_errorzBALPM control file ('%s') not found, skipping ALPM setting for '%s') r+ r' r( �existsr Z
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zSCSIHostPlugin._set_alpmFc C s. | j |�}| jj|dd�j� }|dkr*|S d S )NT)r, � )r+ r Z read_file�strip)r
r Zignore_missingr4 r2 r r r � _get_alpmf s
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plugins/__pycache__/plugin_audio.cpython-36.pyc 0000644 00000010041 15035135375 0015545 0 ustar 00 3
�<�e� � @ sn d dl mZ d dlT ddlZddlmZ ddlZddlZddl Z ddl
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e� ZG dd� dej�ZdS )� )�hotplug)�*� N)�commandsc @ s� e Zd ZdZdd� Zdd� Zdd� Zdd � Zed
d � �Z d d
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dd� Z e ddd�dd� �Z
ed�d dd��Ze ddd�dd� �Zed�d dd ��Zd S ) � AudioPlugina�
`audio`::
Sets audio cards power saving options. The plug-in sets the auto suspend
timeout for audio codecs to the value specified by the [option]`timeout`
option.
+
Currently, the `snd_hda_intel` and `snd_ac97_codec` codecs are
supported and the [option]`timeout` value is in seconds. To disable
auto suspend for these codecs, set the [option]`timeout` value
to `0`. To enforce the controller reset, set the option
[option]`reset_controller` to `true`. Note that power management
is supported per module. Hence, the kernel module names are used as
device names.
+
.Set the timeout value to 10s and enforce the controller reset
====
----
[audio]
timeout=10
reset_controller=true
----
====
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r r r �_reset_controller_pathI s z"AudioPlugin._reset_controller_pathr T)Z
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zAudioPlugin._get_timeoutr c C sH t j|�}| j|�}tjj|�rD|s@t j|||r8tjgndd� |S d S )NF)r ) r �get_boolr �os�path�existsr! r" r# )r r$ r
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z!AudioPlugin._set_reset_controllerc C s: | j |�}tjj|�r6tj|�}t|�dkr6tj|�S d S )Nr )r r. r/ r0 r r) r* r- )r r
r+ r' r$ r r r �_get_reset_controllero s
z!AudioPlugin._get_reset_controllerN)F)F)�__name__�
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plugins/__pycache__/plugin_sysctl.cpython-36.pyc 0000644 00000015310 15035135375 0015771 0 ustar 00 3
�<�e� � @ s� d dl Z ddlmZ ddlT d dlZd dlT d dlmZ d dl j
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d � Ze j
fd d
�Z dd� Z dd� Z
dd� Zdd� Zdd� Zddd�Z� ZS ) � SysctlPluginaI
`sysctl`::
Sets various kernel parameters at runtime.
+
This plug-in is used for applying custom `sysctl` settings and should
only be used to change system settings that are not covered by other
*TuneD* plug-ins. If the settings are covered by other *TuneD* plug-ins,
use those plug-ins instead.
+
The syntax for this plug-in is
`_key_=_value_`, where
`_key_` is the same as the key name provided by the
`sysctl` utility.
+
.Adjusting the kernel runtime kernel.sched_min_granularity_ns value
====
----
[sysctl]
kernel.sched_min_granularity_ns=3000000
----
====
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`usb`::
Sets autosuspend timeout of USB devices to the value specified by the
[option]`autosuspend` option in seconds. If the [option]`devices`
option is specified, the [option]`autosuspend` option applies to only
the USB devices specified, otherwise it applies to all USB devices.
+
The value `0` means that autosuspend is disabled.
+
.To turn off USB autosuspend for USB devices `1-1` and `1-2`
====
----
[usb]
devices=1-1,1-2
autosuspend=0
----
====
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Limit the maximum and minumum uncore frequency.
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exposed by Intel uncore frequency driver.
====
----
[uncore]
max_freq_khz=4000000
----
Using this options *TuneD* will limit maximum frequency of all uncore units
on the Intel system to 4 GHz.
====
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`sysctl`::
Sets various kernel parameters at runtime.
+
This plug-in is used for applying custom `sysctl` settings and should
only be used to change system settings that are not covered by other
*TuneD* plug-ins. If the settings are covered by other *TuneD* plug-ins,
use those plug-ins instead.
+
The syntax for this plug-in is
`_key_=_value_`, where
`_key_` is the same as the key name provided by the
`sysctl` utility.
+
.Adjusting the kernel runtime kernel.sched_min_granularity_ns value
====
----
[sysctl]
kernel.sched_min_granularity_ns=3000000
----
====
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plugins/__pycache__/plugin_sysfs.cpython-36.opt-1.pyc 0000644 00000007221 15035135375 0016560 0 ustar 00 3
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`sysfs`::
Sets various `sysfs` settings specified by the plug-in options.
+
The syntax is `_name_=_value_`, where
`_name_` is the `sysfs` path to use and `_value_` is
the value to write. The `sysfs` path supports the shell-style
wildcard characters (see `man 7 glob` for additional detail).
+
Use this plugin in case you need to change some settings that are
not covered by other plug-ins. Prefer specific plug-ins if they
cover the required settings.
+
.Ignore corrected errors and associated scans that cause latency spikes
====
----
[sysfs]
/sys/devices/system/machinecheck/machinecheck*/ignore_ce=1
----
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i i fdd�Zdd� Zdd� Zdd� Zdd � Zd d � Zd d � Zd!d"� Zejfd#d$�Zd%d&� Zd'd(� Zd)d*� Zd+d,� Z d-d.� Z d/d0� Z d1d2� Z d3d4� Z d5d6� Z!d7d8� Z"d9d:� Z#d;d<� Z$d=d>� Z%d?d@� Z&e'dA�dBdC� �Z(e'dD�dEdF� �Z)e'dG�dHdI� �Z*e'dJdKdLdM�dNdO� �Z+e'dPdKdLdM�dQdR� �Z,e'dSdKdLdM�dTdU� �Z-e'dVdKdLdM�dWdX� �Z.dYdZ� Z/� Z0S )\�BootloaderPlugina�
`bootloader`::
Adds options to the kernel command line. This plug-in supports the
GRUB 2 boot loader and the Boot Loader Specification (BLS).
+
NOTE: *TuneD* will not remove or replace kernel command line
parameters added via other methods like *grubby*. *TuneD* will manage
the kernel command line parameters added via *TuneD*. Please refer
to your platform bootloader documentation about how to identify and
manage kernel command line parameters set outside of *TuneD*.
+
Customized non-standard location of the GRUB 2 configuration file
can be specified by the [option]`grub2_cfg_file` option.
+
The kernel options are added to the current GRUB configuration and
its templates. Reboot the system for the kernel option to take effect.
+
Switching to another profile or manually stopping the `tuned`
service removes the additional options. If you shut down or reboot
the system, the kernel options persist in the [filename]`grub.cfg`
file and grub environment files.
+
The kernel options can be specified by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=__arg1__ __arg2__ ... __argN__
----
+
Or with an alternative, but equivalent syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=+__arg1__ __arg2__ ... __argN__
----
+
Where __suffix__ can be arbitrary (even empty) alphanumeric
string which should be unique across all loaded profiles. It is
recommended to use the profile name as the __suffix__
(for example, [option]`cmdline_my_profile`). If there are multiple
[option]`cmdline` options with the same suffix, during the profile
load/merge the value which was assigned previously will be used. This
is the same behavior as any other plug-in options. The final kernel
command line is constructed by concatenating all the resulting
[option]`cmdline` options.
+
It is also possible to remove kernel options by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=-__arg1__ __arg2__ ... __argN__
----
+
Such kernel options will not be concatenated and thus removed during
the final kernel command line construction.
+
.Modifying the kernel command line
====
For example, to add the [option]`quiet` kernel option to a *TuneD*
profile, include the following lines in the [filename]`tuned.conf`
file:
----
[bootloader]
cmdline_my_profile=+quiet
----
An example of a custom profile `my_profile` that adds the
[option]`isolcpus=2` option to the kernel command line:
----
[bootloader]
cmdline_my_profile=isolcpus=2
----
An example of a custom profile `my_profile` that removes the
[option]`rhgb quiet` options from the kernel command line (if
previously added by *TuneD*):
----
[bootloader]
cmdline_my_profile=-rhgb quiet
----
====
+
.Modifying the kernel command line, example with inheritance
====
For example, to add the [option]`rhgb quiet` kernel options to a
*TuneD* profile `profile_1`:
----
[bootloader]
cmdline_profile_1=+rhgb quiet
----
In the child profile `profile_2` drop the [option]`quiet` option
from the kernel command line:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_2=-quiet
----
The final kernel command line will be [option]`rhgb`. In case the same
[option]`cmdline` suffix as in the `profile_1` is used:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_1=-quiet
----
It will result in the empty kernel command line because the merge
executes and the [option]`cmdline_profile_1` gets redefined to just
[option]`-quiet`. Thus there is nothing to remove in the final kernel
command line processing.
====
+
The [option]`initrd_add_img=IMAGE` adds an initrd overlay file
`IMAGE`. If the `IMAGE` file name begins with '/', the absolute path is
used. Otherwise, the current profile directory is used as the base
directory for the `IMAGE`.
+
The [option]`initrd_add_dir=DIR` creates an initrd image from the
directory `DIR` and adds the resulting image as an overlay.
If the `DIR` directory name begins with '/', the absolute path
is used. Otherwise, the current profile directory is used as the
base directory for the `DIR`.
+
The [option]`initrd_dst_img=PATHNAME` sets the name and location of
the resulting initrd image. Typically, it is not necessary to use this
option. By default, the location of initrd images is `/boot` and the
name of the image is taken as the basename of `IMAGE` or `DIR`. This can
be overridden by setting [option]`initrd_dst_img`.
+
The [option]`initrd_remove_dir=VALUE` removes the source directory
from which the initrd image was built if `VALUE` is true. Only 'y',
'yes', 't', 'true' and '1' (case insensitive) are accepted as true
values for this option. Other values are interpreted as false.
+
.Adding an overlay initrd image
====
----
[bootloader]
initrd_remove_dir=True
initrd_add_dir=/tmp/tuned-initrd.img
----
This creates an initrd image from the `/tmp/tuned-initrd.img` directory
and and then removes the `tuned-initrd.img` directory from `/tmp`.
====
+
The [option]`skip_grub_config=VALUE` does not change grub
configuration if `VALUE` is true. However, [option]`cmdline`
options are still processed, and the result is used to verify the current
cmdline. Only 'y', 'yes', 't', 'true' and '1' (case insensitive) are accepted
as true values for this option. Other values are interpreted as false.
+
.Do not change grub configuration
====
----
[bootloader]
skip_grub_config=True
cmdline=+systemd.cpu_affinity=1
----
====
c s6 t jjtj�stjd��tt| �j ||� t
� | _ d S )Nz4Required GRUB2 template not found, disabling plugin.) �os�path�isfile�constsZGRUB2_TUNED_TEMPLATE_PATHr ZNotSupportedPluginException�superr �__init__r �_cmd)�self�args�kwargs)� __class__� �'/usr/lib/python3.6/plugin_bootloader.pyr � s
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Returns dict created from options
e.g.: _options_to_dict("A=A A=B A B=A C=A", "A=B B=A B=B") returns {'A': ['A', None], 'C': ['A']}
�=r r N)�split�
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| � dS |d S ) zW
Returns status of rpm-ostree transactions or None if not run on rpm-ostree system
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Method for appending or deleting rpm-ostree karg
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or tuple with new kargs, appended kargs and deleted kargs
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rpm-ostree�kargsT)r@ z'rpm-ostree output stdout:
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zBootloaderPlugin._cmdliner, c C s8 |rd S |r4|d k r4| j j|�dkr4tjd� d| _d S )Nr� z(skipping any modification of grub configT)r r� rC rR r )r r� r� r� r� r r r �_skip_grub_config� s
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plugins/__pycache__/plugin_bootloader.cpython-36.pyc 0000644 00000060721 15035135375 0016610 0 ustar 00 3
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`bootloader`::
Adds options to the kernel command line. This plug-in supports the
GRUB 2 boot loader and the Boot Loader Specification (BLS).
+
NOTE: *TuneD* will not remove or replace kernel command line
parameters added via other methods like *grubby*. *TuneD* will manage
the kernel command line parameters added via *TuneD*. Please refer
to your platform bootloader documentation about how to identify and
manage kernel command line parameters set outside of *TuneD*.
+
Customized non-standard location of the GRUB 2 configuration file
can be specified by the [option]`grub2_cfg_file` option.
+
The kernel options are added to the current GRUB configuration and
its templates. Reboot the system for the kernel option to take effect.
+
Switching to another profile or manually stopping the `tuned`
service removes the additional options. If you shut down or reboot
the system, the kernel options persist in the [filename]`grub.cfg`
file and grub environment files.
+
The kernel options can be specified by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=__arg1__ __arg2__ ... __argN__
----
+
Or with an alternative, but equivalent syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=+__arg1__ __arg2__ ... __argN__
----
+
Where __suffix__ can be arbitrary (even empty) alphanumeric
string which should be unique across all loaded profiles. It is
recommended to use the profile name as the __suffix__
(for example, [option]`cmdline_my_profile`). If there are multiple
[option]`cmdline` options with the same suffix, during the profile
load/merge the value which was assigned previously will be used. This
is the same behavior as any other plug-in options. The final kernel
command line is constructed by concatenating all the resulting
[option]`cmdline` options.
+
It is also possible to remove kernel options by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=-__arg1__ __arg2__ ... __argN__
----
+
Such kernel options will not be concatenated and thus removed during
the final kernel command line construction.
+
.Modifying the kernel command line
====
For example, to add the [option]`quiet` kernel option to a *TuneD*
profile, include the following lines in the [filename]`tuned.conf`
file:
----
[bootloader]
cmdline_my_profile=+quiet
----
An example of a custom profile `my_profile` that adds the
[option]`isolcpus=2` option to the kernel command line:
----
[bootloader]
cmdline_my_profile=isolcpus=2
----
An example of a custom profile `my_profile` that removes the
[option]`rhgb quiet` options from the kernel command line (if
previously added by *TuneD*):
----
[bootloader]
cmdline_my_profile=-rhgb quiet
----
====
+
.Modifying the kernel command line, example with inheritance
====
For example, to add the [option]`rhgb quiet` kernel options to a
*TuneD* profile `profile_1`:
----
[bootloader]
cmdline_profile_1=+rhgb quiet
----
In the child profile `profile_2` drop the [option]`quiet` option
from the kernel command line:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_2=-quiet
----
The final kernel command line will be [option]`rhgb`. In case the same
[option]`cmdline` suffix as in the `profile_1` is used:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_1=-quiet
----
It will result in the empty kernel command line because the merge
executes and the [option]`cmdline_profile_1` gets redefined to just
[option]`-quiet`. Thus there is nothing to remove in the final kernel
command line processing.
====
+
The [option]`initrd_add_img=IMAGE` adds an initrd overlay file
`IMAGE`. If the `IMAGE` file name begins with '/', the absolute path is
used. Otherwise, the current profile directory is used as the base
directory for the `IMAGE`.
+
The [option]`initrd_add_dir=DIR` creates an initrd image from the
directory `DIR` and adds the resulting image as an overlay.
If the `DIR` directory name begins with '/', the absolute path
is used. Otherwise, the current profile directory is used as the
base directory for the `DIR`.
+
The [option]`initrd_dst_img=PATHNAME` sets the name and location of
the resulting initrd image. Typically, it is not necessary to use this
option. By default, the location of initrd images is `/boot` and the
name of the image is taken as the basename of `IMAGE` or `DIR`. This can
be overridden by setting [option]`initrd_dst_img`.
+
The [option]`initrd_remove_dir=VALUE` removes the source directory
from which the initrd image was built if `VALUE` is true. Only 'y',
'yes', 't', 'true' and '1' (case insensitive) are accepted as true
values for this option. Other values are interpreted as false.
+
.Adding an overlay initrd image
====
----
[bootloader]
initrd_remove_dir=True
initrd_add_dir=/tmp/tuned-initrd.img
----
This creates an initrd image from the `/tmp/tuned-initrd.img` directory
and and then removes the `tuned-initrd.img` directory from `/tmp`.
====
+
The [option]`skip_grub_config=VALUE` does not change grub
configuration if `VALUE` is true. However, [option]`cmdline`
options are still processed, and the result is used to verify the current
cmdline. Only 'y', 'yes', 't', 'true' and '1' (case insensitive) are accepted
as true values for this option. Other values are interpreted as false.
+
.Do not change grub configuration
====
----
[bootloader]
skip_grub_config=True
cmdline=+systemd.cpu_affinity=1
----
====
c s6 t jjtj�stjd��tt| �j ||� t
� | _ d S )Nz4Required GRUB2 template not found, disabling plugin.) �os�path�isfile�constsZGRUB2_TUNED_TEMPLATE_PATHr ZNotSupportedPluginException�superr �__init__r �_cmd)�self�args�kwargs)� __class__� �'/usr/lib/python3.6/plugin_bootloader.pyr � s
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z BootloaderPlugin._instance_initc C s d S )Nr )r r# r r r �_instance_cleanup� s z"BootloaderPlugin._instance_cleanupc C s d d d d d d d d�S )N)�grub2_cfg_file�initrd_dst_img�initrd_add_img�initrd_add_dir�initrd_remove_dir�cmdline�skip_grub_configr )�clsr r r �_get_config_options� s z$BootloaderPlugin._get_config_optionsr c C s` i }|j � }xN| j � D ]B}||kr|j dd�}|j|d g �jt|�dkrR|d nd� qW |S )z�
Returns dict created from options
e.g.: _options_to_dict("A=A A=B A B=A C=A", "A=B B=A B=B") returns {'A': ['A', None], 'C': ['A']}
�=r r N)�split�
setdefault�append�len)�optionsZomit�d�oZarrr r r �_options_to_dict� s .z!BootloaderPlugin._options_to_dictc C s dj dd� | j� D ��S )N� c S s2 g | ]*\}}|D ] }|d k r(|d | n|�qqS )Nr/ r )�.0�k�vZv1r r r �
<listcomp>� s z5BootloaderPlugin._dict_to_options.<locals>.<listcomp>)�join�items)r5 r r r �_dict_to_options� s z!BootloaderPlugin._dict_to_optionsc C sr | j jddgdd�\}}}tjd||f � |dkr8dS |j� }t|�dk sX|d d krjtjd
| � dS |d S ) zW
Returns status of rpm-ostree transactions or None if not run on rpm-ostree system
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sleep_secs�ir r r �_wait_till_idle s z BootloaderPlugin._wait_till_idlec s� | j jddgdd�\}}}tjd||f � |dkr8dS | j|�}| j� sXtjd� dS i }| j|�j� }x8|j � D ],\� } x| D ]}
|� j
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Method for appending or deleting rpm-ostree karg
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or tuple with new kargs, appended kargs and deleted kargs
z
rpm-ostree�kargsT)r@ z'rpm-ostree output stdout:
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%s)NNN)NNN)r rB rC rD r7 rL �errorr? r0 r> �remove�getr1 �extend�info)r r2 �deleterF rG rH rM �deletedZ
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�existsr2 )r Z cfg_files�fr r r r c s
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plugins/__pycache__/plugin_usb.cpython-36.opt-1.pyc 0000644 00000005716 15035135375 0016211 0 ustar 00 3
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Sets autosuspend timeout of USB devices to the value specified by the
[option]`autosuspend` option in seconds. If the [option]`devices`
option is specified, the [option]`autosuspend` option applies to only
the USB devices specified, otherwise it applies to all USB devices.
+
The value `0` means that autosuspend is disabled.
+
.To turn off USB autosuspend for USB devices `1-1` and `1-2`
====
----
[usb]
devices=1-1,1-2
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----
====
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Dynamically sets the front-side bus (FSB) speed according to the
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equal to the value specified by the [option]`load_threshold_powersave`
option, the plug-in sets the FSB speed to the value specified by the
[option]`she_powersave` option. If the CPU load is higher or
equal to the value specified by the [option]`load_threshold_normal`
option, it sets the FSB speed to the value specified by the
[option]`she_normal` option. Static tuning is not supported and the
plug-in is transparently disabled if the hardware support for this
feature is not detected.
NOTE: For details about the FSB frequencies and corresponding values, see
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plugins/__pycache__/hotplug.cpython-36.opt-1.pyc 0000644 00000010347 15035135375 0015520 0 ustar 00 3
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plugins/__pycache__/plugin_disk.cpython-36.pyc 0000644 00000040633 15035135375 0015410 0 ustar 00 3
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DiskPlugina�
`disk`::
Plug-in for tuning various block device options. This plug-in can also
dynamically change the advanced power management and spindown timeout
setting for a drive according to the current drive utilization. The
dynamic tuning is controlled by the [option]`dynamic` and the global
[option]`dynamic_tuning` option in `tuned-main.conf`.
+
The disk plug-in operates on all supported block devices unless a
comma separated list of [option]`devices` is passed to it.
+
.Operate only on the sda block device
====
----
[disk]
# Comma separated list of devices, all devices if commented out.
devices=sda
----
====
+
The [option]`elevator` option sets the Linux I/O scheduler.
+
.Use the bfq I/O scheduler on xvda block device
====
----
[disk]
device=xvda
elevator=bfq
----
====
+
The [option]`scheduler_quantum` option only applies to the CFQ I/O
scheduler. It defines the number of I/O requests that CFQ sends to
one device at one time, essentially limiting queue depth. The default
value is 8 requests. The device being used may support greater queue
depth, but increasing the value of quantum will also increase latency,
especially for large sequential write work loads.
+
The [option]`apm` option sets the Advanced Power Management feature
on drives that support it. It corresponds to using the `-B` option of
the `hdparm` utility. The [option]`spindown` option puts the drive
into idle (low-power) mode, and also sets the standby (spindown)
timeout for the drive. It corresponds to using `-S` option of the
`hdparm` utility.
+
.Use a medium-agressive power management with spindown
====
----
[disk]
apm=128
spindown=6
----
====
+
The [option]`readahead` option controls how much extra data the
operating system reads from disk when performing sequential
I/O operations. Increasing the `readahead` value might improve
performance in application environments where sequential reading of
large files takes place. The default unit for readahead is KiB. This
can be adjusted to sectors by specifying the suffix 's'. If the
suffix is specified, there must be at least one space between the
number and suffix (for example, `readahead=8192 s`).
+
.Set the `readahead` to 4MB unless already set to a higher value
====
----
[disk]
readahead=>4096
----
====
The disk readahead value can be multiplied by the constant
specified by the [option]`readahead_multiply` option.
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remove_devicer r � _removed_device_unapply_tuning)r' rW rX )r* r+ r, rY � s
z)DiskPlugin._removed_device_unapply_tuningc C s dd d d d d d d�S )NT)�dynamic�elevator�apm�spindown� readahead�readahead_multiply�scheduler_quantumr+ )rP r+ r+ r, �_get_config_options� s z DiskPlugin._get_config_optionsc C s ddgS )Nr\ r] r+ )rP r+ r+ r, �#_get_config_options_used_by_dynamic� s z.DiskPlugin._get_config_options_used_by_dynamicc C sd d|_ d| _d| _| j|jd �rTd|_| jjd|j�|_ i |_
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z DiskPlugin._instance_cleanupc C s� |rd}| j }n
d}| j}|tjkr(d S |dkr6d}nL|tj krbtjd | _ | _tjd� d S |d7 }|tjkr�tjd| � |r�|| _ n|| _d S )Nr] r\ r r zIhdparm command not found, ignoring future set_apm / set_spindown commandsz5disabling set_%s command: too many consecutive errors) rd rc �consts�ERROR_THRESHOLDr? r@ rA rB rC )r' rE r] �sZcntr+ r+ r, �_update_errcnt� s&
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|d }| j |d }t j
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� |j | d < d S ) Nr} r~ c S s g | ]}|d |d �qS )r r r+ )r7 Znew_oldr+ r+ r, r9 + s z,DiskPlugin._update_stats.<locals>.<listcomp>�diffr c S s g | ] }t |��qS r+ )r )r7 Zpairr+ r+ r, r9 0 s r rt � ru )rf �zip�float)r' rW r6 Znew_loadZold_loadr� Z old_max_loadZmax_loadr+ r+ r, rx & s "zDiskPlugin._update_statsc C sL xFdD ]>}|j | | | jk r6|j| | d7 < qd|j| |< qW d S )Nrt ru r r )rt ru )rf r% rg )r' rW r6 Z operationr+ r+ r, ry 7 s
zDiskPlugin._update_idlec s0 | j |�stjd| � ntt| �j||� d S )Nz<There is no dynamic tuning available for device '%s' at time)rG rA rC r r �_instance_apply_dynamic)r' rW r6 )r* r+ r, r� ? s
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gd�\}}| j |d� t|�S d S d S )Nz+apm option is not supported for device '%s'r; z-Bz/dev/)r< F) rG rA rC �strrc rl rm r& r> r? r@ ro )r' r� r6 r� rT rE rF r+ r+ r, �_set_apmd s
( zDiskPlugin._set_apmc C s� | j |�s |s tjd| � d S d }d}| jjddd| gtjgd�\}}|tj krZd S |dkrhd}n@tjd |tj �}|r�yt
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gd�\}}| j |d� t|�S d S d S )Nz0spindown option is not supported for device '%s'r; z-Sz/dev/)r< T) rG rA rC r� rd rl rm r& r> r? r@ ro )r' r� r6 r� rT rE rF r+ r+ r, �
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( zDiskPlugin._set_spindownc C s$ | j |�s |s tjd| � d S dS )Nz0spindown option is not supported for device '%s'� )rG rA rC )r' r6 r� r+ r+ r, �
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zDiskPlugin._get_spindownc C s | j |d�S )Nzqueue/read_ahead_kb)r� )r' r6 r+ r+ r, �_readahead_file� s zDiskPlugin._readahead_filec C s^ t |�jd d�}yt|d �}W n tk
r4 d S X t|�dkrZ|d d dkrZ|d }|S )Nr r rn � )r� �splitr� r� r" )r' r� �val�vr+ r+ r, � _parse_ra� s zDiskPlugin._parse_rar^ c C sZ | j |�}| j|�}|d kr0tjd||f � n&|sV| jj|d| |rNtjgndd� |S )Nz,Invalid readahead value '%s' for device '%s'z%dF)r� )r� r� rA r� r& r� r? r@ )r' r� r6 r� rT r� r� r+ r+ r, �_set_readahead� s
zDiskPlugin._set_readaheadc C s6 | j |�}| jj||d�j� }t|�dkr.d S t|�S )N)r� r )r� r& r� �stripr" r� )r' r6 r� r� r� r+ r+ r, �_get_readahead� s
zDiskPlugin._get_readaheadr_ c C s� |rd S | j d|d�}|r^| j|�}|d kr0d S tt|�| �}| jj||� | j||d� n2| jj|�}|d krvd S | j||d� | jj|� d S )Nr_ )Z command_namerX F) Z _storage_keyr� r� r� Z_storager0 r� rN Zunset) r' ZenablingZ
multiplierr6 Zverifyr� Z storage_keyZ
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z DiskPlugin._multiply_readaheadc C s | j |d�S )Nzqueue/iosched/quantum)r� )r' r6 r+ r+ r, �_scheduler_quantum_file� s z"DiskPlugin._scheduler_quantum_filer` c C s8 | j |�}|s4| jj|dt|� |r,tjgndd� |S )Nz%dF)r� )r� r& r� r� r? r@ )r' r� r6 r� rT r� r+ r+ r, �_set_scheduler_quantum� s
z!DiskPlugin._set_scheduler_quantumc C sH | j |�}| jj||d�j� }t|�dkr@|s<tjd| � d S t|�S )N)r� r z>disk_scheduler_quantum option is not supported for device '%s')r� r& r� r� r" rA rC r� )r' r6 r� r� r� r+ r+ r, �_get_scheduler_quantum� s
z!DiskPlugin._get_scheduler_quantum)r� )F)F)F)F)F)0�__name__�
__module__� __qualname__�__doc__r r. r: rG � classmethodr4 rR rS rQ rV rY ra rb ri rk ro rq rr r{ rw rx ry r� r� r� r� Z command_setr� Z command_getr� r� r� r� r� r� r� r� r� Zcommand_customr� r� r� r� �
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2
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plugins/__pycache__/plugin_video.cpython-36.opt-1.pyc 0000644 00000010206 15035135375 0016514 0 ustar 00 3
�<�e� � @ s` d dl mZ d dlT ddlZddlmZ ddlZddlZddl Z ej
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d�ddd��ZdS )� VideoPlugina�
`video`::
Sets various powersave levels on video cards. Currently, only the
Radeon cards are supported. The powersave level can be specified
by using the [option]`radeon_powersave` option. Supported values are:
+
--
* `default`
* `auto`
* `low`
* `mid`
* `high`
* `dynpm`
* `dpm-battery`
* `dpm-balanced`
* `dpm-perfomance`
--
+
For additional detail, see
link:https://www.x.org/wiki/RadeonFeature/#kmspowermanagementoptions[KMS Power Management Options].
+
NOTE: This plug-in is experimental and the option might change in future releases.
+
.To set the powersave level for the Radeon video card to high
====
----
[video]
radeon_powersave=high
----
====
c C sT d| _ t� | _t� | _x0| jjd�jd�jdd�D ]}| jj|j � q2W t
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gnd d ��rd|S qN|�s`tj d� d S qNW d S )Nz#(\s*:\s*)|(\s+)|(\s*;\s*)|(\s*,\s*)� r z)radeon_powersave is not supported on '%s'�default�auto�low�mid�highr F)�no_error�dynpm� dpm-battery� dpm-balanced�dpm-performancezdpm-�dpmr z$Invalid option for radeon_powersave.)r r r! r" r# )r& r' r( )r �str�re�sub�split�os�path�exists�log�warnr Z
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Zignore_missingr8 r r r r �_get_radeon_powersaves s
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� ZS )� ScriptPluginac
`script`::
Executes an external script or binary when the profile is loaded or
unloaded. You can choose an arbitrary executable.
+
IMPORTANT: The `script` plug-in is provided mainly for compatibility
with earlier releases. Prefer other *TuneD* plug-ins if they cover
the required functionality.
+
*TuneD* calls the executable with one of the following arguments:
+
--
** `start` when loading the profile
** `stop` when unloading the profile
--
+
You need to correctly implement the `stop` action in your executable
and revert all settings that you changed during the `start`
action. Otherwise, the roll-back step after changing your *TuneD*
profile will not work.
+
Bash scripts can import the [filename]`/usr/lib/tuned/functions`
Bash library and use the functions defined there. Use these
functions only for functionality that is not natively provided
by *TuneD*. If a function name starts with an underscore, such as
`_wifi_set_power_level`, consider the function private and do not
use it in your scripts, because it might change in the future.
+
Specify the path to the executable using the `script` parameter in
the plug-in configuration.
+
.Running a Bash script from a profile
====
To run a Bash script named `script.sh` that is located in the profile
directory, use:
----
[script]
script=${i:PROFILE_DIR}/script.sh
----
====
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�<�e= � @ sj d dl Z d dlZddlmZ ddlT d dlZd dlT d dl m
Z
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ModulesPlugina!
`modules`::
Plug-in for applying custom kernel modules options.
+
This plug-in can set parameters to kernel modules. It creates
`/etc/modprobe.d/tuned.conf` file. The syntax is
`_module_=_option1=value1 option2=value2..._` where `_module_` is
the module name and `_optionx=valuex_` are module options which may
or may not be present.
+
.Load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=nr_ndevs=2
----
====
Modules can also be forced to load/reload by using an additional
`+r` option prefix.
+
.(Re)load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=+r nr_ndevs=2
----
====
The `+r` switch will also cause *TuneD* to try and remove `netrom`
module (if loaded) and try and (re)insert it with the specified
parameters. The `+r` can be followed by an optional comma (`+r,`)
for better readability.
+
When using `+r` the module will be loaded immediately by the *TuneD*
daemon itself rather than waiting for the OS to load it with the
specified parameters.
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plugins/__pycache__/plugin_sysfs.cpython-36.pyc 0000644 00000007221 15035135375 0015621 0 ustar 00 3
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dd� Z� ZS )� SysfsPlugina|
`sysfs`::
Sets various `sysfs` settings specified by the plug-in options.
+
The syntax is `_name_=_value_`, where
`_name_` is the `sysfs` path to use and `_value_` is
the value to write. The `sysfs` path supports the shell-style
wildcard characters (see `man 7 glob` for additional detail).
+
Use this plugin in case you need to change some settings that are
not covered by other plug-ins. Prefer specific plug-ins if they
cover the required settings.
+
.Ignore corrected errors and associated scans that cause latency spikes
====
----
[sysfs]
/sys/devices/system/machinecheck/machinecheck*/ignore_ce=1
----
====
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plugins/__pycache__/plugin_audio.cpython-36.opt-1.pyc 0000644 00000010041 15035135375 0016504 0 ustar 00 3
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`audio`::
Sets audio cards power saving options. The plug-in sets the auto suspend
timeout for audio codecs to the value specified by the [option]`timeout`
option.
+
Currently, the `snd_hda_intel` and `snd_ac97_codec` codecs are
supported and the [option]`timeout` value is in seconds. To disable
auto suspend for these codecs, set the [option]`timeout` value
to `0`. To enforce the controller reset, set the option
[option]`reset_controller` to `true`. Note that power management
is supported per module. Hence, the kernel module names are used as
device names.
+
.Set the timeout value to 10s and enforce the controller reset
====
----
[audio]
timeout=10
reset_controller=true
----
====
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plugins/__pycache__/plugin_disk.cpython-36.opt-1.pyc 0000644 00000040633 15035135375 0016347 0 ustar 00 3
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DiskPlugina�
`disk`::
Plug-in for tuning various block device options. This plug-in can also
dynamically change the advanced power management and spindown timeout
setting for a drive according to the current drive utilization. The
dynamic tuning is controlled by the [option]`dynamic` and the global
[option]`dynamic_tuning` option in `tuned-main.conf`.
+
The disk plug-in operates on all supported block devices unless a
comma separated list of [option]`devices` is passed to it.
+
.Operate only on the sda block device
====
----
[disk]
# Comma separated list of devices, all devices if commented out.
devices=sda
----
====
+
The [option]`elevator` option sets the Linux I/O scheduler.
+
.Use the bfq I/O scheduler on xvda block device
====
----
[disk]
device=xvda
elevator=bfq
----
====
+
The [option]`scheduler_quantum` option only applies to the CFQ I/O
scheduler. It defines the number of I/O requests that CFQ sends to
one device at one time, essentially limiting queue depth. The default
value is 8 requests. The device being used may support greater queue
depth, but increasing the value of quantum will also increase latency,
especially for large sequential write work loads.
+
The [option]`apm` option sets the Advanced Power Management feature
on drives that support it. It corresponds to using the `-B` option of
the `hdparm` utility. The [option]`spindown` option puts the drive
into idle (low-power) mode, and also sets the standby (spindown)
timeout for the drive. It corresponds to using `-S` option of the
`hdparm` utility.
+
.Use a medium-agressive power management with spindown
====
----
[disk]
apm=128
spindown=6
----
====
+
The [option]`readahead` option controls how much extra data the
operating system reads from disk when performing sequential
I/O operations. Increasing the `readahead` value might improve
performance in application environments where sequential reading of
large files takes place. The default unit for readahead is KiB. This
can be adjusted to sectors by specifying the suffix 's'. If the
suffix is specified, there must be at least one space between the
number and suffix (for example, `readahead=8192 s`).
+
.Set the `readahead` to 4MB unless already set to a higher value
====
----
[disk]
readahead=>4096
----
====
The disk readahead value can be multiplied by the constant
specified by the [option]`readahead_multiply` option.
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d}| j}|tjkr(d S |dkr6d}nL|tj krbtjd | _ | _tjd� d S |d7 }|tjkr�tjd| � |r�|| _ n|| _d S )Nr] r\ r r zIhdparm command not found, ignoring future set_apm / set_spindown commandsz5disabling set_%s command: too many consecutive errors) rd rc �consts�ERROR_THRESHOLDr? r@ rA rB rC )r' rE r] �sZcntr+ r+ r, �_update_errcnt� s&
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.$
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plugins/__pycache__/plugin_selinux.cpython-36.opt-1.pyc 0000644 00000006001 15035135375 0017073 0 ustar 00 3
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SelinuxPlugina�
`selinux`::
Plug-in for tuning SELinux options.
+
SELinux decisions, such as allowing or denying access, are
cached. This cache is known as the Access Vector Cache (AVC). When
using these cached decisions, SELinux policy rules need to be checked
less, which increases performance. The [option]`avc_cache_threshold`
option allows adjusting the maximum number of AVC entries.
+
NOTE: Prior to changing the default value, evaluate the system
performance with care. Increasing the value could potentially
decrease the performance by making AVC slow.
+
.Increase the AVC cache threshold for hosts with containers.
====
----
[selinux]
avc_cache_threshold=8192
----
====
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plugins/__pycache__/plugin_mounts.cpython-36.opt-1.pyc 0000644 00000012773 15035135375 0016746 0 ustar 00 3
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`mounts`::
Enables or disables barriers for mounts according to the value of the
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option has an optional value `force` which disables barriers even
on mountpoints with write back caches. Note that only extended file
systems (ext) are supported by this plug-in.
c C s� i }d}t dddgttddd�j� \}}x�dd� |j� D �D ]�}t|�d k rNq<|dd � \}}}t|�d krt|d nd} t|�d
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Gets the information about disks, partitions and mountpoints. Stores information about used filesystem and
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Checks if the device has 'write back' cache. If the cache type cannot be determined, asume some other cache.
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Checks if a given mountpoint is mounted with barriers enabled or disabled.
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remount,%sN)r, Zexecute)r$ r6 r7 Zremount_commandr r r �_remount_partition} s z MountsPlugin._remount_partitionr& T)Z
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plugins/__pycache__/plugin_net.cpython-36.pyc 0000644 00000056323 15035135375 0015247 0 ustar 00 3
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`net`::
Configures network driver, hardware and Netfilter settings.
Dynamic change of the interface speed according to the interface
utilization is also supported. The dynamic tuning is controlled by
the [option]`dynamic` and the global [option]`dynamic_tuning`
option in `tuned-main.conf`.
+
The [option]`wake_on_lan` option sets wake-on-lan to the specified
value as when using the `ethtool` utility.
+
.Set Wake-on-LAN for device eth0 on MagicPacket(TM)
====
----
[net]
devices=eth0
wake_on_lan=g
----
====
+
The [option]`coalesce` option allows changing coalescing settings
for the specified network devices. The syntax is:
+
[subs="+quotes,+macros"]
----
coalesce=__param1__ __value1__ __param2__ __value2__ ... __paramN__ __valueN__
----
Note that not all the coalescing parameters are supported by all
network cards. For the list of coalescing parameters of your network
device, use `ethtool -c device`.
+
.Setting coalescing parameters rx/tx-usecs for all network devices
====
----
[net]
coalesce=rx-usecs 3 tx-usecs 16
----
====
+
The [option]`features` option allows changing
the offload parameters and other features for the specified
network devices. To query the features of your network device,
use `ethtool -k device`. The syntax of the option is the same as
the [option]`coalesce` option.
+
.Turn off TX checksumming, generic segmentation and receive offload
====
----
[net]
features=tx off gso off gro off
----
====
The [option]`pause` option allows changing the pause parameters for
the specified network devices. To query the pause parameters of your
network device, use `ethtool -a device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Disable autonegotiation
====
----
[net]
pause=autoneg off
----
====
+
The [option]`ring` option allows changing the rx/tx ring parameters
for the specified network devices. To query the ring parameters of your
network device, use `ethtool -g device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Change the number of ring entries for the Rx/Tx rings to 1024/512 respectively
=====
-----
[net]
ring=rx 1024 tx 512
-----
=====
+
The [option]`channels` option allows changing the numbers of channels
for the specified network device. A channel is an IRQ and the set
of queues that can trigger that IRQ. To query the channels parameters of your
network device, use `ethtool -l device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Set the number of multi-purpose channels to 16
=====
-----
[net]
channels=combined 16
-----
=====
+
A network device either supports rx/tx or combined queue
mode. The [option]`channels` option automatically adjusts the
parameters based on the mode supported by the device as long as a
valid configuration is requested.
+
The [option]`nf_conntrack_hashsize` option sets the size of the hash
table which stores lists of conntrack entries by writing to
`/sys/module/nf_conntrack/parameters/hashsize`.
+
.Adjust the size of the conntrack hash table
====
----
[net]
nf_conntrack_hashsize=131072
----
====
+
The [option]`txqueuelen` option allows changing txqueuelen (the length
of the transmit queue). It uses `ip` utility that is in package iproute
recommended for TuneD, so the package needs to be installed for its correct
functionality. To query the txqueuelen parameters of your network device
use `ip link show` and the current value is shown after the qlen column.
+
.Adjust the length of the transmit queue
====
----
[net]
txqueuelen=5000
----
====
+
The [option]`mtu` option allows changing MTU (Maximum Transmission Unit).
It uses `ip` utility that is in package iproute recommended for TuneD, so
the package needs to be installed for its correct functionality. To query
the MTU parameters of your network device use `ip link show` and the
current value is shown after the MTU column.
+
.Adjust the size of the MTU
====
----
[net]
mtu=9000
----
====
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dev_params -- dictionary of currently known parameters of device
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plugins/__pycache__/plugin_cpu.cpython-36.pyc 0000644 00000064100 15035135375 0015240 0 ustar 00 3
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`cpu`::
Sets the CPU governor to the value specified by the [option]`governor`
option and dynamically changes the Power Management Quality of
Service (PM QoS) CPU Direct Memory Access (DMA) latency according
to the CPU load.
`governor`:::
The [option]`governor` option of the 'cpu' plug-in supports specifying
CPU governors. Multiple governors are separated using '|'. The '|'
character is meant to represent a logical 'or' operator. Note that the
same syntax is used for the [option]`energy_perf_bias` option. *TuneD*
will set the first governor that is available on the system.
+
For example, with the following profile, *TuneD* will set the 'ondemand'
governor, if it is available. If it is not available, but the 'powersave'
governor is available, 'powersave' will be set. If neither of them are
available, the governor will not be changed.
+
.Specifying a CPU governor
====
----
[cpu]
governor=ondemand|powersave
----
====
`sampling_down_factor`:::
The sampling rate determines how frequently the governor checks
to tune the CPU. The [option]`sampling_down_factor` is a tunable
that multiplies the sampling rate when the CPU is at its highest
clock frequency thereby delaying load evaluation and improving
performance. Allowed values for sampling_down_factor are 1 to 100000.
+
.The recommended setting for jitter reduction
====
----
[cpu]
sampling_down_factor = 100
----
====
`energy_perf_bias`:::
[option]`energy_perf_bias` supports managing energy
vs. performance policy via x86 Model Specific Registers using the
`x86_energy_perf_policy` tool. Multiple alternative Energy Performance
Bias (EPB) values are supported. The alternative values are separated
using the '|' character. The following EPB values are supported
starting with kernel 4.13: "performance", "balance-performance",
"normal", "balance-power" and "power". On newer processors is value
writen straight to file (see rhbz#2095829)
+
.Specifying alternative Energy Performance Bias values
====
----
[cpu]
energy_perf_bias=powersave|power
----
*TuneD* will try to set EPB to 'powersave'. If that fails, it will
try to set it to 'power'.
====
`energy_performance_preference`:::
[option]`energy_performance_preference` supports managing energy
vs. performance hints on newer Intel and AMD processors with active P-State
CPU scaling drivers (intel_pstate or amd-pstate). Multiple alternative
Energy Performance Preferences (EPP) values are supported. The alternative
values are separated using the '|' character. Available values can be found
in `energy_performance_available_preferences` file in `CPUFreq` policy
directory in `sysfs`.
in
+
.Specifying alternative Energy Performance Hints values
====
----
[cpu]
energy_performance_preference=balance_power|power
----
*TuneD* will try to set EPP to 'balance_power'. If that fails, it will
try to set it to 'power'.
====
`latency_low, latency_high, load_threshold`:::
+
If the CPU load is lower than the value specified by
the[option]`load_threshold` option, the latency is set to the value
specified either by the [option]`latency_high` option or by the
[option]`latency_low` option.
+
`force_latency`:::
You can also force the latency to a specific value and prevent it from
dynamically changing further. To do so, set the [option]`force_latency`
option to the required latency value.
+
The maximum latency value can be specified in several ways:
+
* by a numerical value in microseconds (for example, `force_latency=10`)
* as the kernel CPU idle level ID of the maximum C-state allowed
(for example, force_latency = cstate.id:1)
* as a case sensitive name of the maximum C-state allowed
(for example, force_latency = cstate.name:C1)
* by using 'None' as a fallback value to prevent errors when alternative
C-state IDs/names do not exist. When 'None' is used in the alternatives
pipeline, all the alternatives that follow 'None' are ignored.
+
It is also possible to specify multiple fallback values separated by '|' as
the C-state names and/or IDs may not be available on some systems.
+
.Specifying fallback C-state values
====
----
[cpu]
force_latency=cstate.name:C6|cstate.id:4|10
----
This configuration tries to obtain and set the latency of C-state named C6.
If the C-state C6 does not exist, kernel CPU idle level ID 4 (state4) latency
is searched for in sysfs. Finally, if the state4 directory in sysfs is not found,
the last latency fallback value is `10` us. The value is encoded and written into
the kernel's PM QoS file `/dev/cpu_dma_latency`.
====
+
.Specifying fallback C-state values using 'None'.
====
----
[cpu]
force_latency=cstate.name:XYZ|None
----
In this case, if C-state with the name `XYZ` does not exist
[option]`force_latency`, no latency value will be written into the
kernel's PM QoS file, and no errors will be reported due to the
presence of 'None'.
====
`min_perf_pct, max_perf_pct, no_turbo`:::
These options set the internals of the Intel P-State driver exposed via the kernel's
`sysfs` interface.
+
.Adjusting the configuration of the Intel P-State driver
====
----
[cpu]
min_perf_pct=100
----
Limit the minimum P-State that will be requested by the driver. It states
it as a percentage of the max (non-turbo) performance level.
====
+
`pm_qos_resume_latency_us`:::
This option allow to set specific latency for all cpus or specific ones.
====
----
[cpu]
pm_qos_resume_latency_us=n/a
----
Special value that disables C-states completely.
====
----
[cpu]
pm_qos_resume_latency_us=0
----
Allows all C-states.
====
----
[cpu]
pm_qos_resume_latency_us=100
----
Allows any C-state with a resume latency less than value.
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ACPIPlugina>
`acpi`::
Configures the ACPI driver.
+
The only currently supported option is
[option]`platform_profile`, which sets the ACPI
platform profile sysfs attribute,
a generic power/performance preference API for other drivers.
Multiple profiles can be specified, separated by `|`.
The first available profile is selected.
+
--
.Selecting a platform profile
====
----
[acpi]
platform_profile=balanced|low-power
----
Using this option, *TuneD* will try to set the platform profile
to `balanced`. If that fails, it will try to set it to `low-power`.
====
--
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`selinux`::
Plug-in for tuning SELinux options.
+
SELinux decisions, such as allowing or denying access, are
cached. This cache is known as the Access Vector Cache (AVC). When
using these cached decisions, SELinux policy rules need to be checked
less, which increases performance. The [option]`avc_cache_threshold`
option allows adjusting the maximum number of AVC entries.
+
NOTE: Prior to changing the default value, evaluate the system
performance with care. Increasing the value could potentially
decrease the performance by making AVC slow.
+
.Increase the AVC cache threshold for hosts with containers.
====
----
[selinux]
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----
====
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`irqbalance`::
Plug-in for irqbalance settings management. The plug-in
configures CPUs which should be skipped when rebalancing IRQs in
`/etc/sysconfig/irqbalance`. It then restarts irqbalance if and
only if it was previously running.
+
The banned/skipped CPUs are specified as a CPU list via the
[option]`banned_cpus` option.
+
.Skip CPUs 2,4 and 9-13 when rebalancing IRQs
====
----
[irqbalance]
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----
====
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`scheduler`::
Allows tuning of scheduling priorities, process/thread/IRQ
affinities, and CPU isolation.
+
To prevent processes/threads/IRQs from using certain CPUs, use
the [option]`isolated_cores` option. It changes process/thread
affinities, IRQs affinities and it sets `default_smp_affinity`
for IRQs. The CPU affinity mask is adjusted for all processes and
threads matching [option]`ps_whitelist` option subject to success
of the `sched_setaffinity()` system call. The default setting of
the [option]`ps_whitelist` regular expression is `.*` to match all
processes and thread names. To exclude certain processes and threads
use [option]`ps_blacklist` option. The value of this option is also
interpreted as a regular expression and process/thread names (`ps -eo
cmd`) are matched against that expression. Profile rollback allows
all matching processes and threads to run on all CPUs and restores
the IRQ settings prior to the profile application.
+
Multiple regular expressions for [option]`ps_whitelist`
and [option]`ps_blacklist` options are allowed and separated by
`;`. Quoted semicolon `\;` is taken literally.
+
.Isolate CPUs 2-4
====
----
[scheduler]
isolated_cores=2-4
ps_blacklist=.*pmd.*;.*PMD.*;^DPDK;.*qemu-kvm.*
----
Isolate CPUs 2-4 while ignoring processes and threads matching
`ps_blacklist` regular expressions.
====
The [option]`irq_process` option controls whether the scheduler plugin
applies the `isolated_cores` parameter to IRQ affinities. The default
value is `true`, which means that the scheduler plugin will move all
possible IRQs away from the isolated cores. When `irq_process` is set
to `false`, the plugin will not change any IRQ affinities.
====
The [option]`default_irq_smp_affinity` option controls the values
*TuneD* writes to `/proc/irq/default_smp_affinity`. The file specifies
default affinity mask that applies to all non-active IRQs. Once an
IRQ is allocated/activated its affinity bitmask will be set to the
default mask.
+
The following values are supported:
+
--
`calc`::
Content of `/proc/irq/default_smp_affinity` will be calculated
from the `isolated_cores` parameter. Non-isolated cores
are calculated as an inversion of the `isolated_cores`. Then
the intersection of the non-isolated cores and the previous
content of `/proc/irq/default_smp_affinity` is written to
`/proc/irq/default_smp_affinity`. If the intersection is
an empty set, then just the non-isolated cores are written to
`/proc/irq/default_smp_affinity`. This behavior is the default if
the parameter `default_irq_smp_affinity` is omitted.
`ignore`::
*TuneD* will not touch `/proc/irq/default_smp_affinity`.
explicit cpulist::
The cpulist (such as 1,3-4) is unpacked and written directly to
`/proc/irq/default_smp_affinity`.
--
+
.An explicit CPU list to set the default IRQ smp affinity to CPUs 0 and 2
====
----
[scheduler]
isolated_cores=1,3
default_irq_smp_affinity=0,2
----
====
To adjust scheduling policy, priority and affinity for a group of
processes/threads, use the following syntax.
+
[subs="+quotes,+macros"]
----
group.__groupname__=__rule_prio__:__sched__:__prio__:__affinity__:__regex__
----
+
where `__rule_prio__` defines internal *TuneD* priority of the
rule. Rules are sorted based on priority. This is needed for
inheritence to be able to reorder previously defined rules. Equal
`__rule_prio__` rules should be processed in the order they were
defined. However, this is Python interpreter dependant. To disable
an inherited rule for `__groupname__` use:
+
[subs="+quotes,+macros"]
----
group.__groupname__=
----
+
`__sched__` must be one of:
*`f`* for FIFO,
*`b`* for batch,
*`r`* for round robin,
*`o`* for other,
*`*`* do not change.
+
`__affinity__` is CPU affinity in hexadecimal. Use `*` for no change.
+
`__prio__` scheduling priority (see `chrt -m`).
+
`__regex__` is Python regular expression. It is matched against the output of
+
[subs="+quotes,+macros"]
----
ps -eo cmd
----
+
Any given process name may match more than one group. In such a case,
the priority and scheduling policy are taken from the last matching
`__regex__`.
+
.Setting scheduling policy and priorities to kernel threads and watchdog
====
----
[scheduler]
group.kthreads=0:*:1:*:\[.*\]$
group.watchdog=0:f:99:*:\[watchdog.*\]
----
====
+
The scheduler plug-in uses perf event loop to catch newly created
processes. By default it listens to `perf.RECORD_COMM` and
`perf.RECORD_EXIT` events. By setting [option]`perf_process_fork`
option to `true`, `perf.RECORD_FORK` events will be also listened
to. In other words, child processes created by the `fork()` system
call will be processed. Since child processes inherit CPU affinity
from their parents, the scheduler plug-in usually does not need to
explicitly process these events. As processing perf events can
pose a significant CPU overhead, the [option]`perf_process_fork`
option parameter is set to `false` by default. Due to this, child
processes are not processed by the scheduler plug-in.
+
The CPU overhead of the scheduler plugin can be mitigated by using
the scheduler [option]`runtime` option and setting it to `0`. This
will completely disable the dynamic scheduler functionality and the
perf events will not be monitored and acted upon. The disadvantage
ot this approach is the procees/thread tuning will be done only at
profile application.
+
.Disabling the scheduler dynamic functionality
====
----
[scheduler]
runtime=0
isolated_cores=1,3
----
====
+
NOTE: For perf events, memory mapped buffer is used. Under heavy load
the buffer may overflow. In such cases the `scheduler` plug-in
may start missing events and failing to process some newly created
processes. Increasing the buffer size may help. The buffer size can
be set with the [option]`perf_mmap_pages` option. The value of this
parameter has to expressed in powers of 2. If it is not the power
of 2, the nearest higher power of 2 value is calculated from it
and this calculated value used. If the [option]`perf_mmap_pages`
option is omitted, the default kernel value is used.
+
The scheduler plug-in supports process/thread confinement using
cgroups v1.
+
[option]`cgroup_mount_point` option specifies the path to mount the
cgroup filesystem or where *TuneD* expects it to be mounted. If unset,
`/sys/fs/cgroup/cpuset` is expected.
+
If [option]`cgroup_groups_init` option is set to `1` *TuneD*
will create (and remove) all cgroups defined with the `cgroup*`
options. This is the default behavior. If it is set to `0` the
cgroups need to be preset by other means.
+
If [option]`cgroup_mount_point_init` option is set to `1`,
*TuneD* will create (and remove) the cgroup mountpoint. It implies
`cgroup_groups_init = 1`. If set to `0` the cgroups mount point
needs to be preset by other means. This is the default behavior.
+
The [option]`cgroup_for_isolated_cores` option is the cgroup
name used for the [option]`isolated_cores` option functionality. For
example, if a system has 4 CPUs, `isolated_cores=1` means that all
processes/threads will be moved to CPUs 0,2-3.
The scheduler plug-in will isolate the specified core by writing
the calculated CPU affinity to the `cpuset.cpus` control file of
the specified cgroup and move all the matching processes/threads to
this group. If this option is unset, classic cpuset affinity using
`sched_setaffinity()` will be used.
+
[option]`cgroup.__cgroup_name__` option defines affinities for
arbitrary cgroups. Even hierarchic cgroups can be used, but the
hieararchy needs to be specified in the correct order. Also *TuneD*
does not do any sanity checks here, with the exception that it forces
the cgroup to be under [option]`cgroup_mount_point`.
+
The syntax of the scheduler option starting with `group.` has been
augmented to use `cgroup.__cgroup_name__` instead of the hexadecimal
`__affinity__`. The matching processes will be moved to the cgroup
`__cgroup_name__`. It is also possible to use cgroups which have
not been defined by the [option]`cgroup.` option as described above,
i.e. cgroups not managed by *TuneD*.
+
All cgroup names are sanitized by replacing all all dots (`.`) with
slashes (`/`). This is to prevent the plug-in from writing outside
[option]`cgroup_mount_point`.
+
.Using cgroups v1 with the scheduler plug-in
====
----
[scheduler]
cgroup_mount_point=/sys/fs/cgroup/cpuset
cgroup_mount_point_init=1
cgroup_groups_init=1
cgroup_for_isolated_cores=group
cgroup.group1=2
cgroup.group2=0,2
group.ksoftirqd=0:f:2:cgroup.group1:ksoftirqd.*
ps_blacklist=ksoftirqd.*;rcuc.*;rcub.*;ktimersoftd.*
isolated_cores=1
----
Cgroup `group1` has the affinity set to CPU 2 and the cgroup `group2`
to CPUs 0,2. Given a 4 CPU setup, the [option]`isolated_cores=1`
option causes all processes/threads to be moved to CPU
cores 0,2-3. Processes/threads that are blacklisted by the
[option]`ps_blacklist` regular expression will not be moved.
The scheduler plug-in will isolate the specified core by writing the
CPU affinity 0,2-3 to the `cpuset.cpus` control file of the `group`
and move all the matching processes/threads to this cgroup.
====
Option [option]`cgroup_ps_blacklist` allows excluding processes
which belong to the blacklisted cgroups. The regular expression specified
by this option is matched against cgroup hierarchies from
`/proc/PID/cgroups`. Cgroups v1 hierarchies from `/proc/PID/cgroups`
are separated by commas ',' prior to regular expression matching. The
following is an example of content against which the regular expression
is matched against: `10:hugetlb:/,9:perf_event:/,8:blkio:/`
+
Multiple regular expressions can be separated by semicolon ';'. The
semicolon represents a logical 'or' operator.
+
.Cgroup-based exclusion of processes from the scheduler
====
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=:/daemons\b
----
The scheduler plug-in will move all processes away from core 1 except processes which
belong to cgroup '/daemons'. The '\b' is a regular expression
metacharacter that matches a word boundary.
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=\b8:blkio:
----
The scheduler plug-in will exclude all processes which belong to a cgroup
with hierarchy-ID 8 and controller-list blkio.
====
Recent kernels moved some `sched_` and `numa_balancing_` kernel run-time
parameters from `/proc/sys/kernel`, managed by the `sysctl` utility, to
`debugfs`, typically mounted under `/sys/kernel/debug`. TuneD provides an
abstraction mechanism for the following parameters via the scheduler plug-in:
[option]`sched_min_granularity_ns`, [option]`sched_latency_ns`,
[option]`sched_wakeup_granularity_ns`, [option]`sched_tunable_scaling`,
[option]`sched_migration_cost_ns`, [option]`sched_nr_migrate`,
[option]`numa_balancing_scan_delay_ms`,
[option]`numa_balancing_scan_period_min_ms`,
[option]`numa_balancing_scan_period_max_ms` and
[option]`numa_balancing_scan_size_mb`.
Based on the kernel used, TuneD will write the specified value to the correct
location.
+
.Set tasks' "cache hot" value for migration decisions.
====
----
[scheduler]
sched_migration_cost_ns=500000
----
On the old kernels, this is equivalent to:
----
[sysctl]
kernel.sched_migration_cost_ns=500000
----
that is, value `500000` will be written to `/proc/sys/kernel/sched_migration_cost_ns`.
However, on more recent kernels, the value `500000` will be written to
`/sys/kernel/debug/sched/migration_cost_ns`.
====
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Dynamically sets the front-side bus (FSB) speed according to the
CPU load. This feature can be found on some netbooks and is also
known as the Asus Super Hybrid Engine. If the CPU load is lower or
equal to the value specified by the [option]`load_threshold_powersave`
option, the plug-in sets the FSB speed to the value specified by the
[option]`she_powersave` option. If the CPU load is higher or
equal to the value specified by the [option]`load_threshold_normal`
option, it sets the FSB speed to the value specified by the
[option]`she_normal` option. Static tuning is not supported and the
plug-in is transparently disabled if the hardware support for this
feature is not detected.
NOTE: For details about the FSB frequencies and corresponding values, see
link:https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-platform-eeepc-laptop[the kernel documentation].
The provided defaults should work for most users.
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Enables or disables transparent huge pages depending on value of the
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possible values `always`, `madvise` and `never`.
+
.Disable transparent hugepages
====
----
[vm]
transparent_hugepages=never
----
====
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The [option]`transparent_hugepage.defrag` option specifies the
defragmentation policy. Possible values for this option are `always`,
`defer`, `defer+madvise`, `madvise` and `never`. For a detailed
explanation of these values refer to
link:https://www.kernel.org/doc/Documentation/vm/transhuge.txt[Transparent Hugepage Support].
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plugins/__pycache__/plugin_systemd.cpython-36.pyc 0000644 00000013657 15035135375 0016154 0 ustar 00 3
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`systemd`::
Plug-in for tuning systemd options.
+
The [option]`cpu_affinity` option allows setting CPUAffinity in
`/etc/systemd/system.conf`. This configures the CPU affinity for the
service manager as well as the default CPU affinity for all forked
off processes. The option takes a comma-separated list of CPUs with
optional CPU ranges specified by the minus sign (`-`).
+
.Set the CPUAffinity for `systemd` to `0 1 2 3`
====
----
[systemd]
cpu_affinity=0-3
----
====
+
NOTE: These tunings are unloaded only on profile change followed by a reboot.
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ACPIPlugina>
`acpi`::
Configures the ACPI driver.
+
The only currently supported option is
[option]`platform_profile`, which sets the ACPI
platform profile sysfs attribute,
a generic power/performance preference API for other drivers.
Multiple profiles can be specified, separated by `|`.
The first available profile is selected.
+
--
.Selecting a platform profile
====
----
[acpi]
platform_profile=balanced|low-power
----
Using this option, *TuneD* will try to set the platform profile
to `balanced`. If that fails, it will try to set it to `low-power`.
====
--
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r r r r �sched_num_to_constR s z!SchedulerUtils.sched_num_to_constc C s
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get_schedulerU s z SchedulerUtils.get_schedulerc C s t j||t j|�� d S )N)r) �sched_setscheduler� sched_param)r
r9 �sched�prior r r �
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r9 r r r � get_affinity[ s zSchedulerUtils.get_affinityc C s t j||� d S )N)r) �sched_setaffinity)r
r9 r r r r � set_affinity^ s zSchedulerUtils.set_affinityc C s t j|�jS )N)r) �sched_getparam�sched_priority)r
r9 r r r � get_prioritya s zSchedulerUtils.get_priorityc C s
t j|�S )N)r) �sched_get_priority_min)r
r= r r r �get_priority_mind s z SchedulerUtils.get_priority_minc C s
t j|�S )N)r) �sched_get_priority_max)r
r= r r r �get_priority_maxg s z SchedulerUtils.get_priority_maxN)r r r �__doc__r/ r r6 r7 r: r? rA rC rF rH rJ r r r r r ; s r c @ sP e Zd ZdZdd� Zdd� Zdd� Zdd � Zd
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r r r r n s z!SchedulerUtilsSchedutils.__init__c C s
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r9 r r r r: t s z&SchedulerUtilsSchedutils.get_schedulerc C s t j|||� d S )N)rM r? )r
r9 r= r> r r r r? w s z&SchedulerUtilsSchedutils.set_schedulerc C s
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r9 r r r rA z s z%SchedulerUtilsSchedutils.get_affinityc C s t j||� d S )N)rM rC )r
r9 r r r r rC } s z%SchedulerUtilsSchedutils.set_affinityc C s
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r9 r r r rF � s z%SchedulerUtilsSchedutils.get_priorityc C s
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r= r r r rJ � s z)SchedulerUtilsSchedutils.get_priority_maxN) r r r rK r r: r? rA rC rF rH rJ r r r r rL j s rL c s� e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zed
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`scheduler`::
Allows tuning of scheduling priorities, process/thread/IRQ
affinities, and CPU isolation.
+
To prevent processes/threads/IRQs from using certain CPUs, use
the [option]`isolated_cores` option. It changes process/thread
affinities, IRQs affinities and it sets `default_smp_affinity`
for IRQs. The CPU affinity mask is adjusted for all processes and
threads matching [option]`ps_whitelist` option subject to success
of the `sched_setaffinity()` system call. The default setting of
the [option]`ps_whitelist` regular expression is `.*` to match all
processes and thread names. To exclude certain processes and threads
use [option]`ps_blacklist` option. The value of this option is also
interpreted as a regular expression and process/thread names (`ps -eo
cmd`) are matched against that expression. Profile rollback allows
all matching processes and threads to run on all CPUs and restores
the IRQ settings prior to the profile application.
+
Multiple regular expressions for [option]`ps_whitelist`
and [option]`ps_blacklist` options are allowed and separated by
`;`. Quoted semicolon `\;` is taken literally.
+
.Isolate CPUs 2-4
====
----
[scheduler]
isolated_cores=2-4
ps_blacklist=.*pmd.*;.*PMD.*;^DPDK;.*qemu-kvm.*
----
Isolate CPUs 2-4 while ignoring processes and threads matching
`ps_blacklist` regular expressions.
====
The [option]`irq_process` option controls whether the scheduler plugin
applies the `isolated_cores` parameter to IRQ affinities. The default
value is `true`, which means that the scheduler plugin will move all
possible IRQs away from the isolated cores. When `irq_process` is set
to `false`, the plugin will not change any IRQ affinities.
====
The [option]`default_irq_smp_affinity` option controls the values
*TuneD* writes to `/proc/irq/default_smp_affinity`. The file specifies
default affinity mask that applies to all non-active IRQs. Once an
IRQ is allocated/activated its affinity bitmask will be set to the
default mask.
+
The following values are supported:
+
--
`calc`::
Content of `/proc/irq/default_smp_affinity` will be calculated
from the `isolated_cores` parameter. Non-isolated cores
are calculated as an inversion of the `isolated_cores`. Then
the intersection of the non-isolated cores and the previous
content of `/proc/irq/default_smp_affinity` is written to
`/proc/irq/default_smp_affinity`. If the intersection is
an empty set, then just the non-isolated cores are written to
`/proc/irq/default_smp_affinity`. This behavior is the default if
the parameter `default_irq_smp_affinity` is omitted.
`ignore`::
*TuneD* will not touch `/proc/irq/default_smp_affinity`.
explicit cpulist::
The cpulist (such as 1,3-4) is unpacked and written directly to
`/proc/irq/default_smp_affinity`.
--
+
.An explicit CPU list to set the default IRQ smp affinity to CPUs 0 and 2
====
----
[scheduler]
isolated_cores=1,3
default_irq_smp_affinity=0,2
----
====
To adjust scheduling policy, priority and affinity for a group of
processes/threads, use the following syntax.
+
[subs="+quotes,+macros"]
----
group.__groupname__=__rule_prio__:__sched__:__prio__:__affinity__:__regex__
----
+
where `__rule_prio__` defines internal *TuneD* priority of the
rule. Rules are sorted based on priority. This is needed for
inheritence to be able to reorder previously defined rules. Equal
`__rule_prio__` rules should be processed in the order they were
defined. However, this is Python interpreter dependant. To disable
an inherited rule for `__groupname__` use:
+
[subs="+quotes,+macros"]
----
group.__groupname__=
----
+
`__sched__` must be one of:
*`f`* for FIFO,
*`b`* for batch,
*`r`* for round robin,
*`o`* for other,
*`*`* do not change.
+
`__affinity__` is CPU affinity in hexadecimal. Use `*` for no change.
+
`__prio__` scheduling priority (see `chrt -m`).
+
`__regex__` is Python regular expression. It is matched against the output of
+
[subs="+quotes,+macros"]
----
ps -eo cmd
----
+
Any given process name may match more than one group. In such a case,
the priority and scheduling policy are taken from the last matching
`__regex__`.
+
.Setting scheduling policy and priorities to kernel threads and watchdog
====
----
[scheduler]
group.kthreads=0:*:1:*:\[.*\]$
group.watchdog=0:f:99:*:\[watchdog.*\]
----
====
+
The scheduler plug-in uses perf event loop to catch newly created
processes. By default it listens to `perf.RECORD_COMM` and
`perf.RECORD_EXIT` events. By setting [option]`perf_process_fork`
option to `true`, `perf.RECORD_FORK` events will be also listened
to. In other words, child processes created by the `fork()` system
call will be processed. Since child processes inherit CPU affinity
from their parents, the scheduler plug-in usually does not need to
explicitly process these events. As processing perf events can
pose a significant CPU overhead, the [option]`perf_process_fork`
option parameter is set to `false` by default. Due to this, child
processes are not processed by the scheduler plug-in.
+
The CPU overhead of the scheduler plugin can be mitigated by using
the scheduler [option]`runtime` option and setting it to `0`. This
will completely disable the dynamic scheduler functionality and the
perf events will not be monitored and acted upon. The disadvantage
ot this approach is the procees/thread tuning will be done only at
profile application.
+
.Disabling the scheduler dynamic functionality
====
----
[scheduler]
runtime=0
isolated_cores=1,3
----
====
+
NOTE: For perf events, memory mapped buffer is used. Under heavy load
the buffer may overflow. In such cases the `scheduler` plug-in
may start missing events and failing to process some newly created
processes. Increasing the buffer size may help. The buffer size can
be set with the [option]`perf_mmap_pages` option. The value of this
parameter has to expressed in powers of 2. If it is not the power
of 2, the nearest higher power of 2 value is calculated from it
and this calculated value used. If the [option]`perf_mmap_pages`
option is omitted, the default kernel value is used.
+
The scheduler plug-in supports process/thread confinement using
cgroups v1.
+
[option]`cgroup_mount_point` option specifies the path to mount the
cgroup filesystem or where *TuneD* expects it to be mounted. If unset,
`/sys/fs/cgroup/cpuset` is expected.
+
If [option]`cgroup_groups_init` option is set to `1` *TuneD*
will create (and remove) all cgroups defined with the `cgroup*`
options. This is the default behavior. If it is set to `0` the
cgroups need to be preset by other means.
+
If [option]`cgroup_mount_point_init` option is set to `1`,
*TuneD* will create (and remove) the cgroup mountpoint. It implies
`cgroup_groups_init = 1`. If set to `0` the cgroups mount point
needs to be preset by other means. This is the default behavior.
+
The [option]`cgroup_for_isolated_cores` option is the cgroup
name used for the [option]`isolated_cores` option functionality. For
example, if a system has 4 CPUs, `isolated_cores=1` means that all
processes/threads will be moved to CPUs 0,2-3.
The scheduler plug-in will isolate the specified core by writing
the calculated CPU affinity to the `cpuset.cpus` control file of
the specified cgroup and move all the matching processes/threads to
this group. If this option is unset, classic cpuset affinity using
`sched_setaffinity()` will be used.
+
[option]`cgroup.__cgroup_name__` option defines affinities for
arbitrary cgroups. Even hierarchic cgroups can be used, but the
hieararchy needs to be specified in the correct order. Also *TuneD*
does not do any sanity checks here, with the exception that it forces
the cgroup to be under [option]`cgroup_mount_point`.
+
The syntax of the scheduler option starting with `group.` has been
augmented to use `cgroup.__cgroup_name__` instead of the hexadecimal
`__affinity__`. The matching processes will be moved to the cgroup
`__cgroup_name__`. It is also possible to use cgroups which have
not been defined by the [option]`cgroup.` option as described above,
i.e. cgroups not managed by *TuneD*.
+
All cgroup names are sanitized by replacing all all dots (`.`) with
slashes (`/`). This is to prevent the plug-in from writing outside
[option]`cgroup_mount_point`.
+
.Using cgroups v1 with the scheduler plug-in
====
----
[scheduler]
cgroup_mount_point=/sys/fs/cgroup/cpuset
cgroup_mount_point_init=1
cgroup_groups_init=1
cgroup_for_isolated_cores=group
cgroup.group1=2
cgroup.group2=0,2
group.ksoftirqd=0:f:2:cgroup.group1:ksoftirqd.*
ps_blacklist=ksoftirqd.*;rcuc.*;rcub.*;ktimersoftd.*
isolated_cores=1
----
Cgroup `group1` has the affinity set to CPU 2 and the cgroup `group2`
to CPUs 0,2. Given a 4 CPU setup, the [option]`isolated_cores=1`
option causes all processes/threads to be moved to CPU
cores 0,2-3. Processes/threads that are blacklisted by the
[option]`ps_blacklist` regular expression will not be moved.
The scheduler plug-in will isolate the specified core by writing the
CPU affinity 0,2-3 to the `cpuset.cpus` control file of the `group`
and move all the matching processes/threads to this cgroup.
====
Option [option]`cgroup_ps_blacklist` allows excluding processes
which belong to the blacklisted cgroups. The regular expression specified
by this option is matched against cgroup hierarchies from
`/proc/PID/cgroups`. Cgroups v1 hierarchies from `/proc/PID/cgroups`
are separated by commas ',' prior to regular expression matching. The
following is an example of content against which the regular expression
is matched against: `10:hugetlb:/,9:perf_event:/,8:blkio:/`
+
Multiple regular expressions can be separated by semicolon ';'. The
semicolon represents a logical 'or' operator.
+
.Cgroup-based exclusion of processes from the scheduler
====
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=:/daemons\b
----
The scheduler plug-in will move all processes away from core 1 except processes which
belong to cgroup '/daemons'. The '\b' is a regular expression
metacharacter that matches a word boundary.
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=\b8:blkio:
----
The scheduler plug-in will exclude all processes which belong to a cgroup
with hierarchy-ID 8 and controller-list blkio.
====
Recent kernels moved some `sched_` and `numa_balancing_` kernel run-time
parameters from `/proc/sys/kernel`, managed by the `sysctl` utility, to
`debugfs`, typically mounted under `/sys/kernel/debug`. TuneD provides an
abstraction mechanism for the following parameters via the scheduler plug-in:
[option]`sched_min_granularity_ns`, [option]`sched_latency_ns`,
[option]`sched_wakeup_granularity_ns`, [option]`sched_tunable_scaling`,
[option]`sched_migration_cost_ns`, [option]`sched_nr_migrate`,
[option]`numa_balancing_scan_delay_ms`,
[option]`numa_balancing_scan_period_min_ms`,
[option]`numa_balancing_scan_period_max_ms` and
[option]`numa_balancing_scan_size_mb`.
Based on the kernel used, TuneD will write the specified value to the correct
location.
+
.Set tasks' "cache hot" value for migration decisions.
====
----
[scheduler]
sched_migration_cost_ns=500000
----
On the old kernels, this is equivalent to:
----
[sysctl]
kernel.sched_migration_cost_ns=500000
----
that is, value `500000` will be written to `/proc/sys/kernel/sched_migration_cost_ns`.
However, on more recent kernels, the value `500000` will be written to
`/sys/kernel/debug/sched/migration_cost_ns`.
====
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ModulesPlugina!
`modules`::
Plug-in for applying custom kernel modules options.
+
This plug-in can set parameters to kernel modules. It creates
`/etc/modprobe.d/tuned.conf` file. The syntax is
`_module_=_option1=value1 option2=value2..._` where `_module_` is
the module name and `_optionx=valuex_` are module options which may
or may not be present.
+
.Load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=nr_ndevs=2
----
====
Modules can also be forced to load/reload by using an additional
`+r` option prefix.
+
.(Re)load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=+r nr_ndevs=2
----
====
The `+r` switch will also cause *TuneD* to try and remove `netrom`
module (if loaded) and try and (re)insert it with the specified
parameters. The `+r` can be followed by an optional comma (`+r,`)
for better readability.
+
When using `+r` the module will be loaded immediately by the *TuneD*
daemon itself rather than waiting for the OS to load it with the
specified parameters.
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SystemdPlugina<
`systemd`::
Plug-in for tuning systemd options.
+
The [option]`cpu_affinity` option allows setting CPUAffinity in
`/etc/systemd/system.conf`. This configures the CPU affinity for the
service manager as well as the default CPU affinity for all forked
off processes. The option takes a comma-separated list of CPUs with
optional CPU ranges specified by the minus sign (`-`).
+
.Set the CPUAffinity for `systemd` to `0 1 2 3`
====
----
[systemd]
cpu_affinity=0-3
----
====
+
NOTE: These tunings are unloaded only on profile change followed by a reboot.
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`irqbalance`::
Plug-in for irqbalance settings management. The plug-in
configures CPUs which should be skipped when rebalancing IRQs in
`/etc/sysconfig/irqbalance`. It then restarts irqbalance if and
only if it was previously running.
+
The banned/skipped CPUs are specified as a CPU list via the
[option]`banned_cpus` option.
+
.Skip CPUs 2,4 and 9-13 when rebalancing IRQs
====
----
[irqbalance]
banned_cpus=2,4,9-13
----
====
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plugins/__pycache__/plugin_scsi_host.cpython-36.opt-1.pyc 0000644 00000011074 15035135375 0017410 0 ustar 00 3
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`scsi_host`::
Tunes options for SCSI hosts.
+
The plug-in sets Aggressive Link Power Management (ALPM) to the value specified
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`min_power`, `medium_power` and `max_performance`.
+
NOTE: ALPM is only available on SATA controllers that use the Advanced
Host Controller Interface (AHCI).
+
.ALPM setting when extended periods of idle time are expected
====
----
[scsi_host]
alpm=min_power
----
====
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exposed by Intel uncore frequency driver.
====
----
[uncore]
max_freq_khz=4000000
----
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on the Intel system to 4 GHz.
====
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`video`::
Sets various powersave levels on video cards. Currently, only the
Radeon cards are supported. The powersave level can be specified
by using the [option]`radeon_powersave` option. Supported values are:
+
--
* `default`
* `auto`
* `low`
* `mid`
* `high`
* `dynpm`
* `dpm-battery`
* `dpm-balanced`
* `dpm-perfomance`
--
+
For additional detail, see
link:https://www.x.org/wiki/RadeonFeature/#kmspowermanagementoptions[KMS Power Management Options].
+
NOTE: This plug-in is experimental and the option might change in future releases.
+
.To set the powersave level for the Radeon video card to high
====
----
[video]
radeon_powersave=high
----
====
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plugins/plugin_mounts.py 0000644 00000012714 15035135375 0011516 0 ustar 00 import tuned.consts as consts
from . import base
from .decorators import *
from subprocess import Popen,PIPE
import tuned.logs
from tuned.utils.commands import commands
import glob
log = tuned.logs.get()
cmd = commands()
class MountsPlugin(base.Plugin):
"""
`mounts`::
Enables or disables barriers for mounts according to the value of the
[option]`disable_barriers` option. The [option]`disable_barriers`
option has an optional value `force` which disables barriers even
on mountpoints with write back caches. Note that only extended file
systems (ext) are supported by this plug-in.
"""
@classmethod
def _generate_mountpoint_topology(cls):
"""
Gets the information about disks, partitions and mountpoints. Stores information about used filesystem and
creates a list of all underlying devices (in case of LVM) for each mountpoint.
"""
mountpoint_topology = {}
current_disk = None
stdout, stderr = Popen(["lsblk", "-rno", \
"TYPE,RM,KNAME,FSTYPE,MOUNTPOINT"], \
stdout=PIPE, stderr=PIPE, close_fds=True, \
universal_newlines = True).communicate()
for columns in [line.split() for line in stdout.splitlines()]:
if len(columns) < 3:
continue
device_type, device_removable, device_name = columns[:3]
filesystem = columns[3] if len(columns) > 3 else None
mountpoint = columns[4] if len(columns) > 4 else None
if device_type == "disk":
current_disk = device_name
continue
# skip removable, skip nonpartitions
if device_removable == "1" or device_type not in ["part", "lvm"]:
continue
if mountpoint is None or mountpoint == "[SWAP]":
continue
mountpoint_topology.setdefault(mountpoint, {"disks": set(), "device_name": device_name, "filesystem": filesystem})
mountpoint_topology[mountpoint]["disks"].add(current_disk)
cls._mountpoint_topology = mountpoint_topology
def _init_devices(self):
self._generate_mountpoint_topology()
self._devices_supported = True
self._free_devices = set(self._mountpoint_topology.keys())
self._assigned_devices = set()
@classmethod
def _get_config_options(self):
return {
"disable_barriers": None,
}
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
def _instance_cleanup(self, instance):
pass
def _get_device_cache_type(self, device):
"""
Get device cache type. This will work only for devices on SCSI kernel subsystem.
"""
source_filenames = glob.glob("/sys/block/%s/device/scsi_disk/*/cache_type" % device)
for source_filename in source_filenames:
return cmd.read_file(source_filename).strip()
return None
def _mountpoint_has_writeback_cache(self, mountpoint):
"""
Checks if the device has 'write back' cache. If the cache type cannot be determined, asume some other cache.
"""
for device in self._mountpoint_topology[mountpoint]["disks"]:
if self._get_device_cache_type(device) == "write back":
return True
return False
def _mountpoint_has_barriers(self, mountpoint):
"""
Checks if a given mountpoint is mounted with barriers enabled or disabled.
"""
with open("/proc/mounts") as mounts_file:
for line in mounts_file:
# device mountpoint filesystem options dump check
columns = line.split()
if columns[0][0] != "/":
continue
if columns[1] == mountpoint:
option_list = columns[3]
break
else:
return None
options = option_list.split(",")
for option in options:
(name, sep, value) = option.partition("=")
# nobarrier barrier=0
if name == "nobarrier" or (name == "barrier" and value == "0"):
return False
# barrier barrier=1
elif name == "barrier":
return True
else:
# default
return True
def _remount_partition(self, partition, options):
"""
Remounts partition.
"""
remount_command = ["/usr/bin/mount", partition, "-o", "remount,%s" % options]
cmd.execute(remount_command)
@command_custom("disable_barriers", per_device=True)
def _disable_barriers(self, start, value, mountpoint, verify, ignore_missing):
storage_key = self._storage_key(
command_name = "disable_barriers",
device_name = mountpoint)
force = str(value).lower() == "force"
value = force or self._option_bool(value)
if start:
if not value:
return None
reject_reason = None
if not self._mountpoint_topology[mountpoint]["filesystem"].startswith("ext"):
reject_reason = "filesystem not supported"
elif not force and self._mountpoint_has_writeback_cache(mountpoint):
reject_reason = "device uses write back cache"
else:
original_value = self._mountpoint_has_barriers(mountpoint)
if original_value is None:
reject_reason = "unknown current setting"
elif original_value == False:
if verify:
log.info(consts.STR_VERIFY_PROFILE_OK % mountpoint)
return True
else:
reject_reason = "barriers already disabled"
elif verify:
log.error(consts.STR_VERIFY_PROFILE_FAIL % mountpoint)
return False
if reject_reason is not None:
log.info("not disabling barriers on '%s' (%s)" % (mountpoint, reject_reason))
return None
self._storage.set(storage_key, original_value)
log.info("disabling barriers on '%s'" % mountpoint)
self._remount_partition(mountpoint, "barrier=0")
else:
if verify:
return None
original_value = self._storage.get(storage_key)
if original_value is None:
return None
log.info("enabling barriers on '%s'" % mountpoint)
self._remount_partition(mountpoint, "barrier=1")
self._storage.unset(storage_key)
return None
plugins/plugin_scsi_host.py 0000644 00000006121 15035135375 0012162 0 ustar 00 import errno
from . import hotplug
from .decorators import *
import tuned.logs
import tuned.consts as consts
from tuned.utils.commands import commands
import os
import re
log = tuned.logs.get()
class SCSIHostPlugin(hotplug.Plugin):
"""
`scsi_host`::
Tunes options for SCSI hosts.
+
The plug-in sets Aggressive Link Power Management (ALPM) to the value specified
by the [option]`alpm` option. The option takes one of three values:
`min_power`, `medium_power` and `max_performance`.
+
NOTE: ALPM is only available on SATA controllers that use the Advanced
Host Controller Interface (AHCI).
+
.ALPM setting when extended periods of idle time are expected
====
----
[scsi_host]
alpm=min_power
----
====
"""
def __init__(self, *args, **kwargs):
super(SCSIHostPlugin, self).__init__(*args, **kwargs)
self._cmd = commands()
def _init_devices(self):
super(SCSIHostPlugin, self)._init_devices()
self._devices_supported = True
self._free_devices = set()
for device in self._hardware_inventory.get_devices("scsi"):
if self._device_is_supported(device):
self._free_devices.add(device.sys_name)
self._assigned_devices = set()
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("scsi", x) for x in devices]
@classmethod
def _device_is_supported(cls, device):
return device.device_type == "scsi_host"
def _hardware_events_init(self):
self._hardware_inventory.subscribe(self, "scsi", self._hardware_events_callback)
def _hardware_events_cleanup(self):
self._hardware_inventory.unsubscribe(self)
def _hardware_events_callback(self, event, device):
if self._device_is_supported(device):
super(SCSIHostPlugin, self)._hardware_events_callback(event, device)
def _added_device_apply_tuning(self, instance, device_name):
super(SCSIHostPlugin, self)._added_device_apply_tuning(instance, device_name)
def _removed_device_unapply_tuning(self, instance, device_name):
super(SCSIHostPlugin, self)._removed_device_unapply_tuning(instance, device_name)
@classmethod
def _get_config_options(cls):
return {
"alpm" : None,
}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
def _get_alpm_policy_file(self, device):
return os.path.join("/sys/class/scsi_host/", str(device), "link_power_management_policy")
@command_set("alpm", per_device = True)
def _set_alpm(self, policy, device, sim, remove):
if policy is None:
return None
policy_file = self._get_alpm_policy_file(device)
if not sim:
if os.path.exists(policy_file):
self._cmd.write_to_file(policy_file, policy, \
no_error = [errno.ENOENT] if remove else False)
else:
log.info("ALPM control file ('%s') not found, skipping ALPM setting for '%s'" % (policy_file, str(device)))
return None
return policy
@command_get("alpm")
def _get_alpm(self, device, ignore_missing=False):
policy_file = self._get_alpm_policy_file(device)
policy = self._cmd.read_file(policy_file, no_error = True).strip()
return policy if policy != "" else None
plugins/plugin_uncore.py 0000644 00000011163 15035135375 0011461 0 ustar 00 from . import hotplug
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import os
import fnmatch
log = tuned.logs.get()
cmd = commands()
SYSFS_DIR = "/sys/devices/system/cpu/intel_uncore_frequency/"
IS_MIN = 0
IS_MAX = 1
class UncorePlugin(hotplug.Plugin):
"""
`uncore`::
`max_freq_khz, min_freq_khz`:::
Limit the maximum and minumum uncore frequency.
Those options are Intel specific and correspond directly to `sysfs` files
exposed by Intel uncore frequency driver.
====
----
[uncore]
max_freq_khz=4000000
----
Using this options *TuneD* will limit maximum frequency of all uncore units
on the Intel system to 4 GHz.
====
"""
def _init_devices(self):
self._devices_supported = True
self._assigned_devices = set()
self._free_devices = set()
self._is_tpmi = False
try:
devices = os.listdir(SYSFS_DIR)
except OSError:
return
# For new TPMI interface use only uncore devices
tpmi_devices = fnmatch.filter(devices, 'uncore*')
if len(tpmi_devices) > 0:
self._is_tpmi = True # Not used at present but can be usefull in future
devices = tpmi_devices
for d in devices:
self._free_devices.add(d)
log.debug("devices: %s", str(self._free_devices))
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
def _get(self, dev_dir, file):
sysfs_file = SYSFS_DIR + dev_dir + "/" + file
value = cmd.read_file(sysfs_file)
if len(value) > 0:
return int(value)
return None
def _set(self, dev_dir, file, value):
sysfs_file = SYSFS_DIR + dev_dir + "/" + file
if cmd.write_to_file(sysfs_file, "%u" % value):
return value
return None
@classmethod
def _get_config_options(cls):
return {
"max_freq_khz": None,
"min_freq_khz": None,
}
def _validate_value(self, device, min_or_max, value):
try:
freq_khz = int(value)
except ValueError:
log.error("value '%s' is not integer" % value)
return None
try:
initial_max_freq_khz = self._get(device, "initial_max_freq_khz")
initial_min_freq_khz = self._get(device, "initial_min_freq_khz")
max_freq_khz = self._get(device, "max_freq_khz")
min_freq_khz = self._get(device, "min_freq_khz")
except (OSError, IOError):
log.error("fail to read inital uncore frequency values")
return None
if min_or_max == IS_MAX:
if freq_khz < min_freq_khz:
log.error("%s: max_freq_khz %d value below min_freq_khz %d" % (device, freq_khz, min_freq_khz))
return None
if freq_khz > initial_max_freq_khz:
log.info("%s: max_freq_khz %d value above initial_max_freq_khz - capped to %d" % (device, freq_khz, initial_max_freq_khz))
freq_khz = initial_max_freq_khz
elif min_or_max == IS_MIN:
if freq_khz > max_freq_khz:
log.error("%s: min_freq_khz %d value above max_freq_khz %d" % (device, freq_khz, max_freq_khz))
return None
if freq_khz < initial_min_freq_khz:
log.info("%s: min_freq_khz %d value below initial_max_freq_khz - capped to %d" % (device, freq_khz, initial_min_freq_khz))
freq_khz = initial_min_freq_khz
else:
return None
return freq_khz
@command_set("max_freq_khz", per_device = True)
def _set_max_freq_khz(self, value, device, sim, remove):
max_freq_khz = self._validate_value(device, IS_MAX, value)
if max_freq_khz is None:
return None
if sim:
return max_freq_khz
log.debug("%s: set max_freq_khz %d" % (device, max_freq_khz))
return self._set(device, "max_freq_khz", max_freq_khz)
@command_get("max_freq_khz")
def _get_max_freq_khz(self, device, ignore_missing=False):
if ignore_missing and not os.path.isdir(SYSFS_DIR):
return None
try:
max_freq_khz = self._get(device, "max_freq_khz")
except (OSError, IOError):
log.error("fail to read uncore frequency values")
return None
log.debug("%s: get max_freq_khz %d" % (device, max_freq_khz))
return max_freq_khz
@command_set("min_freq_khz", per_device = True)
def _set_min_freq_khz(self, value, device, sim, remove):
min_freq_khz = self._validate_value(device, IS_MIN, value)
if min_freq_khz is None:
return None
if sim:
return min_freq_khz
log.debug("%s: set min_freq_khz %d" % (device, min_freq_khz))
return self._set(device, "min_freq_khz", min_freq_khz)
@command_get("min_freq_khz")
def _get_min_freq_khz(self, device, ignore_missing=False):
if ignore_missing and not os.path.isdir(SYSFS_DIR):
return None
try:
min_freq_khz = self._get(device, "min_freq_khz")
except (OSError, IOError):
log.error("fail to read uncore frequency values")
return None
log.debug("%s: get min_freq_khz %d" % (device, min_freq_khz))
return min_freq_khz
plugins/plugin_eeepc_she.py 0000644 00000005603 15035135375 0012110 0 ustar 00 from . import base
from . import exceptions
import tuned.logs
from tuned.utils.commands import commands
import os
log = tuned.logs.get()
class EeePCSHEPlugin(base.Plugin):
"""
`eeepc_she`::
Dynamically sets the front-side bus (FSB) speed according to the
CPU load. This feature can be found on some netbooks and is also
known as the Asus Super Hybrid Engine. If the CPU load is lower or
equal to the value specified by the [option]`load_threshold_powersave`
option, the plug-in sets the FSB speed to the value specified by the
[option]`she_powersave` option. If the CPU load is higher or
equal to the value specified by the [option]`load_threshold_normal`
option, it sets the FSB speed to the value specified by the
[option]`she_normal` option. Static tuning is not supported and the
plug-in is transparently disabled if the hardware support for this
feature is not detected.
NOTE: For details about the FSB frequencies and corresponding values, see
link:https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-platform-eeepc-laptop[the kernel documentation].
The provided defaults should work for most users.
"""
def __init__(self, *args, **kwargs):
self._cmd = commands()
self._control_file = "/sys/devices/platform/eeepc/cpufv"
if not os.path.isfile(self._control_file):
self._control_file = "/sys/devices/platform/eeepc-wmi/cpufv"
if not os.path.isfile(self._control_file):
raise exceptions.NotSupportedPluginException("Plugin is not supported on your hardware.")
super(EeePCSHEPlugin, self).__init__(*args, **kwargs)
@classmethod
def _get_config_options(self):
return {
"load_threshold_normal" : 0.6,
"load_threshold_powersave" : 0.4,
"she_powersave" : 2,
"she_normal" : 1,
}
def _instance_init(self, instance):
instance._has_static_tuning = False
instance._has_dynamic_tuning = True
instance._she_mode = None
instance._load_monitor = self._monitors_repository.create("load", None)
def _instance_cleanup(self, instance):
if instance._load_monitor is not None:
self._monitors_repository.delete(instance._load_monitor)
instance._load_monitor = None
def _instance_update_dynamic(self, instance, device):
load = instance._load_monitor.get_load()["system"]
if load <= instance.options["load_threshold_powersave"]:
self._set_she_mode(instance, "powersave")
elif load >= instance.options["load_threshold_normal"]:
self._set_she_mode(instance, "normal")
def _instance_unapply_dynamic(self, instance, device):
# FIXME: restore previous value
self._set_she_mode(instance, "normal")
def _set_she_mode(self, instance, new_mode):
new_mode_numeric = int(instance.options["she_%s" % new_mode])
if instance._she_mode != new_mode_numeric:
log.info("new eeepc_she mode %s (%d) " % (new_mode, new_mode_numeric))
self._cmd.write_to_file(self._control_file, "%s" % new_mode_numeric)
self._she_mode = new_mode_numeric
plugins/plugin_irqbalance.py 0000644 00000006742 15035135375 0012276 0 ustar 00 from . import base
from .decorators import command_custom
from tuned import consts
import tuned.logs
import errno
import perf
import re
log = tuned.logs.get()
class IrqbalancePlugin(base.Plugin):
"""
`irqbalance`::
Plug-in for irqbalance settings management. The plug-in
configures CPUs which should be skipped when rebalancing IRQs in
`/etc/sysconfig/irqbalance`. It then restarts irqbalance if and
only if it was previously running.
+
The banned/skipped CPUs are specified as a CPU list via the
[option]`banned_cpus` option.
+
.Skip CPUs 2,4 and 9-13 when rebalancing IRQs
====
----
[irqbalance]
banned_cpus=2,4,9-13
----
====
"""
def __init__(self, *args, **kwargs):
super(IrqbalancePlugin, self).__init__(*args, **kwargs)
self._cpus = perf.cpu_map()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
def _instance_cleanup(self, instance):
pass
@classmethod
def _get_config_options(cls):
return {
"banned_cpus": None,
}
def _read_irqbalance_sysconfig(self):
try:
with open(consts.IRQBALANCE_SYSCONFIG_FILE, "r") as f:
return f.read()
except IOError as e:
if e.errno == errno.ENOENT:
log.warn("irqbalance sysconfig file is missing. Is irqbalance installed?")
else:
log.error("Failed to read irqbalance sysconfig file: %s" % e)
return None
def _write_irqbalance_sysconfig(self, content):
try:
with open(consts.IRQBALANCE_SYSCONFIG_FILE, "w") as f:
f.write(content)
return True
except IOError as e:
log.error("Failed to write irqbalance sysconfig file: %s" % e)
return False
def _write_banned_cpus(self, sysconfig, banned_cpumask):
return sysconfig + "IRQBALANCE_BANNED_CPUS=%s\n" % banned_cpumask
def _clear_banned_cpus(self, sysconfig):
lines = []
for line in sysconfig.split("\n"):
if not re.match(r"\s*IRQBALANCE_BANNED_CPUS=", line):
lines.append(line)
return "\n".join(lines)
def _restart_irqbalance(self):
# Exit code 5 means unit not found (see 'EXIT_NOTINSTALLED' in
# systemd.exec(5))
retcode, out = self._cmd.execute(
["systemctl", "try-restart", "irqbalance"],
no_errors=[5])
if retcode != 0:
log.warn("Failed to restart irqbalance. Is it installed?")
def _set_banned_cpus(self, banned_cpumask):
content = self._read_irqbalance_sysconfig()
if content is None:
return
content = self._clear_banned_cpus(content)
content = self._write_banned_cpus(content, banned_cpumask)
if self._write_irqbalance_sysconfig(content):
self._restart_irqbalance()
def _restore_banned_cpus(self):
content = self._read_irqbalance_sysconfig()
if content is None:
return
content = self._clear_banned_cpus(content)
if self._write_irqbalance_sysconfig(content):
self._restart_irqbalance()
@command_custom("banned_cpus", per_device=False)
def _banned_cpus(self, enabling, value, verify, ignore_missing):
banned_cpumask = None
if value is not None:
banned = set(self._cmd.cpulist_unpack(value))
present = set(self._cpus)
if banned.issubset(present):
banned_cpumask = self._cmd.cpulist2hex(list(banned))
else:
str_cpus = ",".join([str(x) for x in self._cpus])
log.error("Invalid banned_cpus specified, '%s' does not match available cores '%s'"
% (value, str_cpus))
if (enabling or verify) and banned_cpumask is None:
return None
if verify:
# Verification is currently not supported
return None
elif enabling:
self._set_banned_cpus(banned_cpumask)
else:
self._restore_banned_cpus()
plugins/instance/__init__.py 0000644 00000000074 15035135375 0012152 0 ustar 00 from .instance import Instance
from .factory import Factory
plugins/instance/instance.py 0000644 00000003657 15035135375 0012231 0 ustar 00 import tuned.consts as consts
class Instance(object):
"""
"""
def __init__(self, plugin, name, devices_expression, devices_udev_regex, script_pre, script_post, options):
self._plugin = plugin
self._name = name
self._devices_expression = devices_expression
self._devices_udev_regex = devices_udev_regex
self._script_pre = script_pre
self._script_post = script_post
self._options = options
self._active = True
self._has_static_tuning = False
self._has_dynamic_tuning = False
self._assigned_devices = set()
self._processed_devices = set()
# properties
@property
def plugin(self):
return self._plugin
@property
def name(self):
return self._name
@property
def active(self):
"""The instance performs some tuning (otherwise it is suspended)."""
return self._active
@active.setter
def active(self, value):
self._active = value
@property
def devices_expression(self):
return self._devices_expression
@property
def assigned_devices(self):
return self._assigned_devices
@property
def processed_devices(self):
return self._processed_devices
@property
def devices_udev_regex(self):
return self._devices_udev_regex
@property
def script_pre(self):
return self._script_pre
@property
def script_post(self):
return self._script_post
@property
def options(self):
return self._options
@property
def has_static_tuning(self):
return self._has_static_tuning
@property
def has_dynamic_tuning(self):
return self._has_dynamic_tuning
# methods
def apply_tuning(self):
self._plugin.instance_apply_tuning(self)
def verify_tuning(self, ignore_missing):
return self._plugin.instance_verify_tuning(self, ignore_missing)
def update_tuning(self):
self._plugin.instance_update_tuning(self)
def unapply_tuning(self, rollback = consts.ROLLBACK_SOFT):
self._plugin.instance_unapply_tuning(self, rollback)
def destroy(self):
self.unapply_tuning()
self._plugin.destroy_instance(self)
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plugins/instance/__pycache__/instance.cpython-36.opt-1.pyc 0000644 00000006502 15035135375 0017444 0 ustar 00 3
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plugins/instance/__pycache__/__init__.cpython-36.pyc 0000644 00000000301 15035135375 0016427 0 ustar 00 3
�<�e< � @ s d dl mZ d dlmZ dS )� )�Instance)�FactoryN)�instancer �factoryr � r r � /usr/lib/python3.6/__init__.py�<module> s plugins/instance/__pycache__/factory.cpython-36.pyc 0000644 00000000707 15035135375 0016351 0 ustar 00 3
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r r r r r s r N)r r �objectr r r r r �<module> s plugins/instance/__pycache__/__init__.cpython-36.opt-1.pyc 0000644 00000000301 15035135375 0017366 0 ustar 00 3
�<�e< � @ s d dl mZ d dlmZ dS )� )�Instance)�FactoryN)�instancer �factoryr � r r � /usr/lib/python3.6/__init__.py�<module> s plugins/instance/factory.py 0000644 00000000224 15035135375 0012057 0 ustar 00 from .instance import Instance
class Factory(object):
def create(self, *args, **kwargs):
instance = Instance(*args, **kwargs)
return instance
plugins/plugin_video.py 0000644 00000007337 15035135375 0011304 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import os
import errno
import re
log = tuned.logs.get()
class VideoPlugin(base.Plugin):
"""
`video`::
Sets various powersave levels on video cards. Currently, only the
Radeon cards are supported. The powersave level can be specified
by using the [option]`radeon_powersave` option. Supported values are:
+
--
* `default`
* `auto`
* `low`
* `mid`
* `high`
* `dynpm`
* `dpm-battery`
* `dpm-balanced`
* `dpm-perfomance`
--
+
For additional detail, see
link:https://www.x.org/wiki/RadeonFeature/#kmspowermanagementoptions[KMS Power Management Options].
+
NOTE: This plug-in is experimental and the option might change in future releases.
+
.To set the powersave level for the Radeon video card to high
====
----
[video]
radeon_powersave=high
----
====
"""
def _init_devices(self):
self._devices_supported = True
self._free_devices = set()
self._assigned_devices = set()
# FIXME: this is a blind shot, needs testing
for device in self._hardware_inventory.get_devices("drm").match_sys_name("card*").match_property("DEVTYPE", "drm_minor"):
self._free_devices.add(device.sys_name)
self._cmd = commands()
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("drm", x) for x in devices]
@classmethod
def _get_config_options(self):
return {
"radeon_powersave" : None,
}
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
def _instance_cleanup(self, instance):
pass
def _radeon_powersave_files(self, device):
return {
"method" : "/sys/class/drm/%s/device/power_method" % device,
"profile": "/sys/class/drm/%s/device/power_profile" % device,
"dpm_state": "/sys/class/drm/%s/device/power_dpm_state" % device
}
@command_set("radeon_powersave", per_device=True)
def _set_radeon_powersave(self, value, device, sim, remove):
sys_files = self._radeon_powersave_files(device)
va = str(re.sub(r"(\s*:\s*)|(\s+)|(\s*;\s*)|(\s*,\s*)", " ", value)).split()
if not os.path.exists(sys_files["method"]):
if not sim:
log.warn("radeon_powersave is not supported on '%s'" % device)
return None
for v in va:
if v in ["default", "auto", "low", "mid", "high"]:
if not sim:
if (self._cmd.write_to_file(sys_files["method"], "profile", \
no_error = [errno.ENOENT] if remove else False) and
self._cmd.write_to_file(sys_files["profile"], v, \
no_error = [errno.ENOENT] if remove else False)):
return v
elif v == "dynpm":
if not sim:
if (self._cmd.write_to_file(sys_files["method"], "dynpm", \
no_error = [errno.ENOENT] if remove else False)):
return "dynpm"
# new DPM profiles, recommended to use if supported
elif v in ["dpm-battery", "dpm-balanced", "dpm-performance"]:
if not sim:
state = v[len("dpm-"):]
if (self._cmd.write_to_file(sys_files["method"], "dpm", \
no_error = [errno.ENOENT] if remove else False) and
self._cmd.write_to_file(sys_files["dpm_state"], state, \
no_error = [errno.ENOENT] if remove else False)):
return v
else:
if not sim:
log.warn("Invalid option for radeon_powersave.")
return None
return None
@command_get("radeon_powersave")
def _get_radeon_powersave(self, device, ignore_missing = False):
sys_files = self._radeon_powersave_files(device)
method = self._cmd.read_file(sys_files["method"], no_error=ignore_missing).strip()
if method == "profile":
return self._cmd.read_file(sys_files["profile"]).strip()
elif method == "dynpm":
return method
elif method == "dpm":
return "dpm-" + self._cmd.read_file(sys_files["dpm_state"]).strip()
else:
return None
plugins/hotplug.py 0000644 00000007530 15035135375 0010275 0 ustar 00 from . import base
import tuned.consts as consts
import tuned.logs
log = tuned.logs.get()
class Plugin(base.Plugin):
"""
Base class for plugins with device hotpluging support.
"""
def __init__(self, *args, **kwargs):
super(Plugin, self).__init__(*args, **kwargs)
def cleanup(self):
super(Plugin, self).cleanup()
self._hardware_events_cleanup()
def _hardware_events_init(self):
pass
def _hardware_events_cleanup(self):
pass
def _init_devices(self):
self._hardware_events_init()
def _hardware_events_callback(self, event, device):
if event == "add":
log.info("device '%s' added" % device.sys_name)
self._add_device(device.sys_name)
elif event == "remove":
log.info("device '%s' removed" % device.sys_name)
self._remove_device(device.sys_name)
def _add_device_process(self, instance, device_name):
log.info("instance %s: adding new device %s" % (instance.name, device_name))
self._assigned_devices.add(device_name)
self._call_device_script(instance, instance.script_pre, "apply", [device_name])
self._added_device_apply_tuning(instance, device_name)
self._call_device_script(instance, instance.script_post, "apply", [device_name])
instance.processed_devices.add(device_name)
def _add_device(self, device_name):
if device_name in (self._assigned_devices | self._free_devices):
return
for instance_name, instance in list(self._instances.items()):
if len(self._get_matching_devices(instance, [device_name])) == 1:
self._add_device_process(instance, device_name)
break
else:
log.debug("no instance wants %s" % device_name)
self._free_devices.add(device_name)
def _add_devices_nocheck(self, instance, device_names):
"""
Add devices specified by the set to the instance, no check is performed.
"""
for dev in device_names:
self._add_device_process(instance, dev)
# This can be a bit racy (we can overcount),
# but it shouldn't affect the boolean result
instance.active = len(instance.processed_devices) \
+ len(instance.assigned_devices) > 0
def _remove_device_process(self, instance, device_name):
if device_name in instance.processed_devices:
self._call_device_script(instance, instance.script_post, "unapply", [device_name])
self._removed_device_unapply_tuning(instance, device_name)
self._call_device_script(instance, instance.script_pre, "unapply", [device_name])
instance.processed_devices.remove(device_name)
# This can be a bit racy (we can overcount),
# but it shouldn't affect the boolean result
instance.active = len(instance.processed_devices) \
+ len(instance.assigned_devices) > 0
self._assigned_devices.remove(device_name)
return True
return False
def _remove_device(self, device_name):
"""Remove device from the instance
Parameters:
device_name -- name of the device
"""
if device_name not in (self._assigned_devices | self._free_devices):
return
for instance in list(self._instances.values()):
if self._remove_device_process(instance, device_name):
break
else:
self._free_devices.remove(device_name)
def _remove_devices_nocheck(self, instance, device_names):
"""
Remove devices specified by the set from the instance, no check is performed.
"""
for dev in device_names:
self._remove_device_process(instance, dev)
def _added_device_apply_tuning(self, instance, device_name):
self._execute_all_device_commands(instance, [device_name])
if instance.has_dynamic_tuning and self._global_cfg.get(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING):
self._instance_apply_dynamic(instance, device_name)
def _removed_device_unapply_tuning(self, instance, device_name):
if instance.has_dynamic_tuning and self._global_cfg.get(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING):
self._instance_unapply_dynamic(instance, device_name)
self._cleanup_all_device_commands(instance, [device_name], remove = True)
plugins/plugin_bootloader.py 0000644 00000062472 15035135375 0012331 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
from . import exceptions
from tuned.utils.commands import commands
import tuned.consts as consts
import os
import re
import tempfile
from time import sleep
log = tuned.logs.get()
class BootloaderPlugin(base.Plugin):
"""
`bootloader`::
Adds options to the kernel command line. This plug-in supports the
GRUB 2 boot loader and the Boot Loader Specification (BLS).
+
NOTE: *TuneD* will not remove or replace kernel command line
parameters added via other methods like *grubby*. *TuneD* will manage
the kernel command line parameters added via *TuneD*. Please refer
to your platform bootloader documentation about how to identify and
manage kernel command line parameters set outside of *TuneD*.
+
Customized non-standard location of the GRUB 2 configuration file
can be specified by the [option]`grub2_cfg_file` option.
+
The kernel options are added to the current GRUB configuration and
its templates. Reboot the system for the kernel option to take effect.
+
Switching to another profile or manually stopping the `tuned`
service removes the additional options. If you shut down or reboot
the system, the kernel options persist in the [filename]`grub.cfg`
file and grub environment files.
+
The kernel options can be specified by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=__arg1__ __arg2__ ... __argN__
----
+
Or with an alternative, but equivalent syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=+__arg1__ __arg2__ ... __argN__
----
+
Where __suffix__ can be arbitrary (even empty) alphanumeric
string which should be unique across all loaded profiles. It is
recommended to use the profile name as the __suffix__
(for example, [option]`cmdline_my_profile`). If there are multiple
[option]`cmdline` options with the same suffix, during the profile
load/merge the value which was assigned previously will be used. This
is the same behavior as any other plug-in options. The final kernel
command line is constructed by concatenating all the resulting
[option]`cmdline` options.
+
It is also possible to remove kernel options by the following syntax:
+
[subs="+quotes,+macros"]
----
cmdline__suffix__=-__arg1__ __arg2__ ... __argN__
----
+
Such kernel options will not be concatenated and thus removed during
the final kernel command line construction.
+
.Modifying the kernel command line
====
For example, to add the [option]`quiet` kernel option to a *TuneD*
profile, include the following lines in the [filename]`tuned.conf`
file:
----
[bootloader]
cmdline_my_profile=+quiet
----
An example of a custom profile `my_profile` that adds the
[option]`isolcpus=2` option to the kernel command line:
----
[bootloader]
cmdline_my_profile=isolcpus=2
----
An example of a custom profile `my_profile` that removes the
[option]`rhgb quiet` options from the kernel command line (if
previously added by *TuneD*):
----
[bootloader]
cmdline_my_profile=-rhgb quiet
----
====
+
.Modifying the kernel command line, example with inheritance
====
For example, to add the [option]`rhgb quiet` kernel options to a
*TuneD* profile `profile_1`:
----
[bootloader]
cmdline_profile_1=+rhgb quiet
----
In the child profile `profile_2` drop the [option]`quiet` option
from the kernel command line:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_2=-quiet
----
The final kernel command line will be [option]`rhgb`. In case the same
[option]`cmdline` suffix as in the `profile_1` is used:
----
[main]
include=profile_1
[bootloader]
cmdline_profile_1=-quiet
----
It will result in the empty kernel command line because the merge
executes and the [option]`cmdline_profile_1` gets redefined to just
[option]`-quiet`. Thus there is nothing to remove in the final kernel
command line processing.
====
+
The [option]`initrd_add_img=IMAGE` adds an initrd overlay file
`IMAGE`. If the `IMAGE` file name begins with '/', the absolute path is
used. Otherwise, the current profile directory is used as the base
directory for the `IMAGE`.
+
The [option]`initrd_add_dir=DIR` creates an initrd image from the
directory `DIR` and adds the resulting image as an overlay.
If the `DIR` directory name begins with '/', the absolute path
is used. Otherwise, the current profile directory is used as the
base directory for the `DIR`.
+
The [option]`initrd_dst_img=PATHNAME` sets the name and location of
the resulting initrd image. Typically, it is not necessary to use this
option. By default, the location of initrd images is `/boot` and the
name of the image is taken as the basename of `IMAGE` or `DIR`. This can
be overridden by setting [option]`initrd_dst_img`.
+
The [option]`initrd_remove_dir=VALUE` removes the source directory
from which the initrd image was built if `VALUE` is true. Only 'y',
'yes', 't', 'true' and '1' (case insensitive) are accepted as true
values for this option. Other values are interpreted as false.
+
.Adding an overlay initrd image
====
----
[bootloader]
initrd_remove_dir=True
initrd_add_dir=/tmp/tuned-initrd.img
----
This creates an initrd image from the `/tmp/tuned-initrd.img` directory
and and then removes the `tuned-initrd.img` directory from `/tmp`.
====
+
The [option]`skip_grub_config=VALUE` does not change grub
configuration if `VALUE` is true. However, [option]`cmdline`
options are still processed, and the result is used to verify the current
cmdline. Only 'y', 'yes', 't', 'true' and '1' (case insensitive) are accepted
as true values for this option. Other values are interpreted as false.
+
.Do not change grub configuration
====
----
[bootloader]
skip_grub_config=True
cmdline=+systemd.cpu_affinity=1
----
====
"""
def __init__(self, *args, **kwargs):
if not os.path.isfile(consts.GRUB2_TUNED_TEMPLATE_PATH):
raise exceptions.NotSupportedPluginException("Required GRUB2 template not found, disabling plugin.")
super(BootloaderPlugin, self).__init__(*args, **kwargs)
self._cmd = commands()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
# controls grub2_cfg rewrites in _instance_post_static
self.update_grub2_cfg = False
self._skip_grub_config_val = False
self._initrd_remove_dir = False
self._initrd_dst_img_val = None
self._cmdline_val = ""
self._initrd_val = ""
self._grub2_cfg_file_names = self._get_grub2_cfg_files()
self._bls = self._bls_enabled()
self._rpm_ostree = self._rpm_ostree_status() is not None
def _instance_cleanup(self, instance):
pass
@classmethod
def _get_config_options(cls):
return {
"grub2_cfg_file": None,
"initrd_dst_img": None,
"initrd_add_img": None,
"initrd_add_dir": None,
"initrd_remove_dir": None,
"cmdline": None,
"skip_grub_config": None,
}
@staticmethod
def _options_to_dict(options, omit=""):
"""
Returns dict created from options
e.g.: _options_to_dict("A=A A=B A B=A C=A", "A=B B=A B=B") returns {'A': ['A', None], 'C': ['A']}
"""
d = {}
omit = omit.split()
for o in options.split():
if o not in omit:
arr = o.split('=', 1)
d.setdefault(arr[0], []).append(arr[1] if len(arr) > 1 else None)
return d
@staticmethod
def _dict_to_options(d):
return " ".join([k + "=" + v1 if v1 is not None else k for k, v in d.items() for v1 in v])
def _rpm_ostree_status(self):
"""
Returns status of rpm-ostree transactions or None if not run on rpm-ostree system
"""
(rc, out, err) = self._cmd.execute(['rpm-ostree', 'status'], return_err=True)
log.debug("rpm-ostree status output stdout:\n%s\nstderr:\n%s" % (out, err))
if rc != 0:
return None
splited = out.split()
if len(splited) < 2 or splited[0] != "State:":
log.warn("Exceptional format of rpm-ostree status result:\n%s" % out)
return None
return splited[1]
def _wait_till_idle(self):
sleep_cycles = 10
sleep_secs = 1.0
for i in range(sleep_cycles):
if self._rpm_ostree_status() == "idle":
return True
sleep(sleep_secs)
if self._rpm_ostree_status() == "idle":
return True
return False
def _rpm_ostree_kargs(self, append={}, delete={}):
"""
Method for appending or deleting rpm-ostree karg
returns None if rpm-ostree not present or is run on not ostree system
or tuple with new kargs, appended kargs and deleted kargs
"""
(rc, out, err) = self._cmd.execute(['rpm-ostree', 'kargs'], return_err=True)
log.debug("rpm-ostree output stdout:\n%s\nstderr:\n%s" % (out, err))
if rc != 0:
return None, None, None
kargs = self._options_to_dict(out)
if not self._wait_till_idle():
log.error("Cannot wait for transaction end")
return None, None, None
deleted = {}
delete_params = self._dict_to_options(delete).split()
# Deleting kargs, e.g. deleting added kargs by profile
for k, val in delete.items():
for v in val:
kargs[k].remove(v)
deleted[k] = val
appended = {}
append_params = self._dict_to_options(append).split()
# Appending kargs, e.g. new kargs by profile or restoring kargs replaced by profile
for k, val in append.items():
if kargs.get(k):
# If there is karg that we add with new value we want to delete it
# and store old value for restoring after profile unload
log.debug("adding rpm-ostree kargs %s: %s for delete" % (k, kargs[k]))
deleted.setdefault(k, []).extend(kargs[k])
delete_params.extend([k + "=" + v if v is not None else k for v in kargs[k]])
kargs[k] = []
kargs.setdefault(k, []).extend(val)
appended[k] = val
if append_params == delete_params:
log.info("skipping rpm-ostree kargs - append == deleting (%s)" % append_params)
return kargs, appended, deleted
log.info("rpm-ostree kargs - appending: '%s'; deleting: '%s'" % (append_params, delete_params))
(rc, _, err) = self._cmd.execute(['rpm-ostree', 'kargs'] +
['--append=%s' % v for v in append_params] +
['--delete=%s' % v for v in delete_params], return_err=True)
if rc != 0:
log.error("Something went wrong with rpm-ostree kargs\n%s" % (err))
return self._options_to_dict(out), None, None
else:
return kargs, appended, deleted
def _get_effective_options(self, options):
"""Merge provided options with plugin default options and merge all cmdline.* options."""
effective = self._get_config_options().copy()
cmdline_keys = []
for key in options:
if str(key).startswith("cmdline"):
cmdline_keys.append(key)
elif key in effective:
effective[key] = options[key]
else:
log.warn("Unknown option '%s' for plugin '%s'." % (key, self.__class__.__name__))
cmdline = ""
for key in cmdline_keys:
val = options[key]
if val is None or val == "":
continue
op = val[0]
op1 = val[1:2]
vals = val[1:].strip()
if op == "+" or (op == "\\" and op1 in ["\\", "+", "-"]):
if vals != "":
cmdline += " " + vals
elif op == "-":
if vals != "":
for p in vals.split():
regex = re.escape(p)
cmdline = re.sub(r"(\A|\s)" + regex + r"(?=\Z|\s)", r"", cmdline)
else:
cmdline += " " + val
cmdline = cmdline.strip()
if cmdline != "":
effective["cmdline"] = cmdline
return effective
def _get_grub2_cfg_files(self):
cfg_files = []
for f in consts.GRUB2_CFG_FILES:
if os.path.exists(f):
cfg_files.append(f)
return cfg_files
def _bls_enabled(self):
grub2_default_env = self._cmd.read_file(consts.GRUB2_DEFAULT_ENV_FILE, no_error = True)
if len(grub2_default_env) <= 0:
log.info("cannot read '%s'" % consts.GRUB2_DEFAULT_ENV_FILE)
return False
return re.search(r"^\s*GRUB_ENABLE_BLSCFG\s*=\s*\"?\s*[tT][rR][uU][eE]\s*\"?\s*$", grub2_default_env,
flags = re.MULTILINE) is not None
def _patch_bootcmdline(self, d):
return self._cmd.add_modify_option_in_file(consts.BOOT_CMDLINE_FILE, d)
def _remove_grub2_tuning(self):
self._patch_bootcmdline({consts.BOOT_CMDLINE_TUNED_VAR : "", consts.BOOT_CMDLINE_INITRD_ADD_VAR : ""})
if not self._grub2_cfg_file_names:
log.info("cannot find grub.cfg to patch")
return
for f in self._grub2_cfg_file_names:
self._cmd.add_modify_option_in_file(f, {r"set\s+" + consts.GRUB2_TUNED_VAR : "", r"set\s+" + consts.GRUB2_TUNED_INITRD_VAR : ""}, add = False)
if self._initrd_dst_img_val is not None:
log.info("removing initrd image '%s'" % self._initrd_dst_img_val)
self._cmd.unlink(self._initrd_dst_img_val)
def _get_rpm_ostree_changes(self):
f = self._cmd.read_file(consts.BOOT_CMDLINE_FILE)
appended = re.search(consts.BOOT_CMDLINE_TUNED_VAR + r"=\"(.*)\"", f, flags=re.MULTILINE)
appended = appended[1] if appended else ""
deleted = re.search(consts.BOOT_CMDLINE_KARGS_DELETED_VAR + r"=\"(.*)\"", f, flags=re.MULTILINE)
deleted = deleted[1] if deleted else ""
return appended, deleted
def _remove_rpm_ostree_tuning(self):
appended, deleted = self._get_rpm_ostree_changes()
self._rpm_ostree_kargs(append=self._options_to_dict(deleted), delete=self._options_to_dict(appended))
self._patch_bootcmdline({consts.BOOT_CMDLINE_TUNED_VAR: "", consts.BOOT_CMDLINE_KARGS_DELETED_VAR: ""})
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
if rollback == consts.ROLLBACK_FULL and not self._skip_grub_config_val:
if self._rpm_ostree:
log.info("removing rpm-ostree tuning previously added by Tuned")
self._remove_rpm_ostree_tuning()
else:
log.info("removing grub2 tuning previously added by Tuned")
self._remove_grub2_tuning()
self._update_grubenv({"tuned_params" : "", "tuned_initrd" : ""})
def _grub2_cfg_unpatch(self, grub2_cfg):
log.debug("unpatching grub.cfg")
cfg = re.sub(r"^\s*set\s+" + consts.GRUB2_TUNED_VAR + "\\s*=.*\n", "", grub2_cfg, flags = re.MULTILINE)
grub2_cfg = re.sub(r" *\$" + consts.GRUB2_TUNED_VAR, "", cfg, flags = re.MULTILINE)
cfg = re.sub(r"^\s*set\s+" + consts.GRUB2_TUNED_INITRD_VAR + "\\s*=.*\n", "", grub2_cfg, flags = re.MULTILINE)
grub2_cfg = re.sub(r" *\$" + consts.GRUB2_TUNED_INITRD_VAR, "", cfg, flags = re.MULTILINE)
cfg = re.sub(consts.GRUB2_TEMPLATE_HEADER_BEGIN + r"\n", "", grub2_cfg, flags = re.MULTILINE)
return re.sub(consts.GRUB2_TEMPLATE_HEADER_END + r"\n+", "", cfg, flags = re.MULTILINE)
def _grub2_cfg_patch_initial(self, grub2_cfg, d):
log.debug("initial patching of grub.cfg")
s = r"\1\n\n" + consts.GRUB2_TEMPLATE_HEADER_BEGIN + "\n"
for opt in d:
s += r"set " + self._cmd.escape(opt) + "=\"" + self._cmd.escape(d[opt]) + "\"\n"
s += consts.GRUB2_TEMPLATE_HEADER_END + r"\n"
grub2_cfg = re.sub(r"^(\s*###\s+END\s+[^#]+/00_header\s+### *)\n", s, grub2_cfg, flags = re.MULTILINE)
d2 = {"linux" : consts.GRUB2_TUNED_VAR, "initrd" : consts.GRUB2_TUNED_INITRD_VAR}
for i in d2:
# add TuneD parameters to all kernels
grub2_cfg = re.sub(r"^(\s*" + i + r"(16|efi)?\s+.*)$", r"\1 $" + d2[i], grub2_cfg, flags = re.MULTILINE)
# remove TuneD parameters from rescue kernels
grub2_cfg = re.sub(r"^(\s*" + i + r"(?:16|efi)?\s+\S+rescue.*)\$" + d2[i] + r" *(.*)$", r"\1\2", grub2_cfg, flags = re.MULTILINE)
# fix whitespaces in rescue kernels
grub2_cfg = re.sub(r"^(\s*" + i + r"(?:16|efi)?\s+\S+rescue.*) +$", r"\1", grub2_cfg, flags = re.MULTILINE)
return grub2_cfg
def _grub2_default_env_patch(self):
grub2_default_env = self._cmd.read_file(consts.GRUB2_DEFAULT_ENV_FILE)
if len(grub2_default_env) <= 0:
log.info("cannot read '%s'" % consts.GRUB2_DEFAULT_ENV_FILE)
return False
d = {"GRUB_CMDLINE_LINUX_DEFAULT" : consts.GRUB2_TUNED_VAR, "GRUB_INITRD_OVERLAY" : consts.GRUB2_TUNED_INITRD_VAR}
write = False
for i in d:
if re.search(r"^[^#]*\b" + i + r"\s*=.*\\\$" + d[i] + r"\b.*$", grub2_default_env, flags = re.MULTILINE) is None:
write = True
if grub2_default_env[-1] != "\n":
grub2_default_env += "\n"
grub2_default_env += i + "=\"${" + i + ":+$" + i + r" }\$" + d[i] + "\"\n"
if write:
log.debug("patching '%s'" % consts.GRUB2_DEFAULT_ENV_FILE)
self._cmd.write_to_file(consts.GRUB2_DEFAULT_ENV_FILE, grub2_default_env)
return True
def _grub2_default_env_unpatch(self):
grub2_default_env = self._cmd.read_file(consts.GRUB2_DEFAULT_ENV_FILE)
if len(grub2_default_env) <= 0:
log.info("cannot read '%s'" % consts.GRUB2_DEFAULT_ENV_FILE)
return False
write = False
if re.search(r"^GRUB_CMDLINE_LINUX_DEFAULT=\"\$\{GRUB_CMDLINE_LINUX_DEFAULT:\+\$GRUB_CMDLINE_LINUX_DEFAULT \}\\\$" +
consts.GRUB2_TUNED_VAR + "\"$", grub2_default_env, flags = re.MULTILINE):
write = True
cfg = re.sub(r"^GRUB_CMDLINE_LINUX_DEFAULT=\"\$\{GRUB_CMDLINE_LINUX_DEFAULT:\+\$GRUB_CMDLINE_LINUX_DEFAULT \}\\\$" +
consts.GRUB2_TUNED_VAR + "\"$\n", "", grub2_default_env, flags = re.MULTILINE)
if cfg[-1] != "\n":
cfg += "\n"
if write:
log.debug("unpatching '%s'" % consts.GRUB2_DEFAULT_ENV_FILE)
self._cmd.write_to_file(consts.GRUB2_DEFAULT_ENV_FILE, cfg)
return True
def _grub2_cfg_patch(self, d):
log.debug("patching grub.cfg")
if not self._grub2_cfg_file_names:
log.info("cannot find grub.cfg to patch")
return False
for f in self._grub2_cfg_file_names:
grub2_cfg = self._cmd.read_file(f)
if len(grub2_cfg) <= 0:
log.info("cannot patch %s" % f)
continue
log.debug("adding boot command line parameters to '%s'" % f)
grub2_cfg_new = grub2_cfg
patch_initial = False
for opt in d:
(grub2_cfg_new, nsubs) = re.subn(r"\b(set\s+" + opt + r"\s*=).*$", r"\1" + "\"" + self._cmd.escape(d[opt]) + "\"", grub2_cfg_new, flags = re.MULTILINE)
if nsubs < 1 or re.search(r"\$" + opt, grub2_cfg, flags = re.MULTILINE) is None:
patch_initial = True
# workaround for rhbz#1442117
if len(re.findall(r"\$" + consts.GRUB2_TUNED_VAR, grub2_cfg, flags = re.MULTILINE)) != \
len(re.findall(r"\$" + consts.GRUB2_TUNED_INITRD_VAR, grub2_cfg, flags = re.MULTILINE)):
patch_initial = True
if patch_initial:
grub2_cfg_new = self._grub2_cfg_patch_initial(self._grub2_cfg_unpatch(grub2_cfg), d)
self._cmd.write_to_file(f, grub2_cfg_new)
if self._bls:
self._grub2_default_env_unpatch()
else:
self._grub2_default_env_patch()
return True
def _rpm_ostree_update(self):
appended, _ = self._get_rpm_ostree_changes()
_cmdline_dict = self._options_to_dict(self._cmdline_val, appended)
if not _cmdline_dict:
return None
(_, _, d) = self._rpm_ostree_kargs(append=_cmdline_dict)
if d is None:
return
self._patch_bootcmdline({consts.BOOT_CMDLINE_TUNED_VAR : self._cmdline_val, consts.BOOT_CMDLINE_KARGS_DELETED_VAR : self._dict_to_options(d)})
def _grub2_update(self):
self._grub2_cfg_patch({consts.GRUB2_TUNED_VAR : self._cmdline_val, consts.GRUB2_TUNED_INITRD_VAR : self._initrd_val})
self._patch_bootcmdline({consts.BOOT_CMDLINE_TUNED_VAR : self._cmdline_val, consts.BOOT_CMDLINE_INITRD_ADD_VAR : self._initrd_val})
def _has_bls(self):
return os.path.exists(consts.BLS_ENTRIES_PATH)
def _update_grubenv(self, d):
log.debug("updating grubenv, setting %s" % str(d))
l = ["%s=%s" % (str(option), str(value)) for option, value in d.items()]
(rc, out) = self._cmd.execute(["grub2-editenv", "-", "set"] + l)
if rc != 0:
log.warn("cannot update grubenv: '%s'" % out)
return False
return True
def _bls_entries_patch_initial(self):
machine_id = self._cmd.get_machine_id()
if machine_id == "":
return False
log.debug("running kernel update hook '%s' to patch BLS entries" % consts.KERNEL_UPDATE_HOOK_FILE)
(rc, out) = self._cmd.execute([consts.KERNEL_UPDATE_HOOK_FILE, "add"], env = {"KERNEL_INSTALL_MACHINE_ID" : machine_id})
if rc != 0:
log.warn("cannot patch BLS entries: '%s'" % out)
return False
return True
def _bls_update(self):
log.debug("updating BLS")
if self._has_bls() and \
self._update_grubenv({"tuned_params" : self._cmdline_val, "tuned_initrd" : self._initrd_val}) and \
self._bls_entries_patch_initial():
return True
return False
def _init_initrd_dst_img(self, name):
if self._initrd_dst_img_val is None:
self._initrd_dst_img_val = os.path.join(consts.BOOT_DIR, os.path.basename(name))
def _check_petitboot(self):
return os.path.isdir(consts.PETITBOOT_DETECT_DIR)
def _install_initrd(self, img):
if self._rpm_ostree:
log.warn("Detected rpm-ostree which doesn't support initrd overlays.")
return False
if self._check_petitboot():
log.warn("Detected Petitboot which doesn't support initrd overlays. The initrd overlay will be ignored by bootloader.")
log.info("installing initrd image as '%s'" % self._initrd_dst_img_val)
img_name = os.path.basename(self._initrd_dst_img_val)
if not self._cmd.copy(img, self._initrd_dst_img_val):
return False
self.update_grub2_cfg = True
curr_cmdline = self._cmd.read_file("/proc/cmdline").rstrip()
initrd_grubpath = "/"
lc = len(curr_cmdline)
if lc:
path = re.sub(r"^\s*BOOT_IMAGE=\s*(?:\([^)]*\))?(\S*/).*$", "\\1", curr_cmdline)
if len(path) < lc:
initrd_grubpath = path
self._initrd_val = os.path.join(initrd_grubpath, img_name)
return True
@command_custom("grub2_cfg_file")
def _grub2_cfg_file(self, enabling, value, verify, ignore_missing):
# nothing to verify
if verify:
return None
if enabling and value is not None:
self._grub2_cfg_file_names = [str(value)]
@command_custom("initrd_dst_img")
def _initrd_dst_img(self, enabling, value, verify, ignore_missing):
# nothing to verify
if verify:
return None
if enabling and value is not None:
self._initrd_dst_img_val = str(value)
if self._initrd_dst_img_val == "":
return False
if self._initrd_dst_img_val[0] != "/":
self._initrd_dst_img_val = os.path.join(consts.BOOT_DIR, self._initrd_dst_img_val)
@command_custom("initrd_remove_dir")
def _initrd_remove_dir(self, enabling, value, verify, ignore_missing):
# nothing to verify
if verify:
return None
if enabling and value is not None:
self._initrd_remove_dir = self._cmd.get_bool(value) == "1"
@command_custom("initrd_add_img", per_device = False, priority = 10)
def _initrd_add_img(self, enabling, value, verify, ignore_missing):
# nothing to verify
if verify:
return None
if enabling and value is not None:
src_img = str(value)
self._init_initrd_dst_img(src_img)
if src_img == "":
return False
if not self._install_initrd(src_img):
return False
@command_custom("initrd_add_dir", per_device = False, priority = 10)
def _initrd_add_dir(self, enabling, value, verify, ignore_missing):
# nothing to verify
if verify:
return None
if enabling and value is not None:
src_dir = str(value)
self._init_initrd_dst_img(src_dir)
if src_dir == "":
return False
if not os.path.isdir(src_dir):
log.error("error: cannot create initrd image, source directory '%s' doesn't exist" % src_dir)
return False
log.info("generating initrd image from directory '%s'" % src_dir)
(fd, tmpfile) = tempfile.mkstemp(prefix = "tuned-bootloader-", suffix = ".tmp")
log.debug("writing initrd image to temporary file '%s'" % tmpfile)
os.close(fd)
(rc, out) = self._cmd.execute("find . | cpio -co > %s" % tmpfile, cwd = src_dir, shell = True)
log.debug("cpio log: %s" % out)
if rc != 0:
log.error("error generating initrd image")
self._cmd.unlink(tmpfile, no_error = True)
return False
self._install_initrd(tmpfile)
self._cmd.unlink(tmpfile)
if self._initrd_remove_dir:
log.info("removing directory '%s'" % src_dir)
self._cmd.rmtree(src_dir)
@command_custom("cmdline", per_device = False, priority = 10)
def _cmdline(self, enabling, value, verify, ignore_missing):
v = self._variables.expand(self._cmd.unquote(value))
if verify:
if self._rpm_ostree:
rpm_ostree_kargs = self._rpm_ostree_kargs()[0]
cmdline = self._dict_to_options(rpm_ostree_kargs)
else:
cmdline = self._cmd.read_file("/proc/cmdline")
if len(cmdline) == 0:
return None
cmdline_set = set(cmdline.split())
value_set = set(v.split())
missing_set = value_set - cmdline_set
if len(missing_set) == 0:
log.info(consts.STR_VERIFY_PROFILE_VALUE_OK % ("cmdline", str(value_set)))
return True
else:
cmdline_dict = {v.split("=", 1)[0]: v for v in cmdline_set}
for m in missing_set:
arg = m.split("=", 1)[0]
if not arg in cmdline_dict:
log.error(consts.STR_VERIFY_PROFILE_CMDLINE_FAIL_MISSING % (arg, m))
else:
log.error(consts.STR_VERIFY_PROFILE_CMDLINE_FAIL % (cmdline_dict[arg], m))
present_set = value_set & cmdline_set
log.info("expected arguments that are present in cmdline: %s"%(" ".join(present_set),))
return False
if enabling and value is not None:
log.info("installing additional boot command line parameters to grub2")
self.update_grub2_cfg = True
self._cmdline_val = v
@command_custom("skip_grub_config", per_device = False, priority = 10)
def _skip_grub_config(self, enabling, value, verify, ignore_missing):
if verify:
return None
if enabling and value is not None:
if self._cmd.get_bool(value) == "1":
log.info("skipping any modification of grub config")
self._skip_grub_config_val = True
def _instance_post_static(self, instance, enabling):
if enabling and self._skip_grub_config_val:
if len(self._initrd_val) > 0:
log.warn("requested changes to initrd will not be applied!")
if len(self._cmdline_val) > 0:
log.warn("requested changes to cmdline will not be applied!")
# ensure that the desired cmdline is always written to BOOT_CMDLINE_FILE (/etc/tuned/bootcmdline)
self._patch_bootcmdline({consts.BOOT_CMDLINE_TUNED_VAR : self._cmdline_val, consts.BOOT_CMDLINE_INITRD_ADD_VAR : self._initrd_val})
elif enabling and self.update_grub2_cfg:
if self._rpm_ostree:
self._rpm_ostree_update()
else:
self._grub2_update()
self._bls_update()
self.update_grub2_cfg = False
plugins/plugin_scheduler.py 0000644 00000155677 15035135375 0012167 0 ustar 00 # code for cores isolation was inspired by Tuna implementation
# perf code was borrowed from kernel/tools/perf/python/twatch.py
# thanks to Arnaldo Carvalho de Melo <acme@redhat.com>
from . import base
from .decorators import *
import tuned.logs
import re
from subprocess import *
import threading
import perf
import select
import tuned.consts as consts
import procfs
from tuned.utils.commands import commands
import errno
import os
import collections
import math
# Check existence of scheduler API in os module
try:
os.SCHED_FIFO
except AttributeError:
import schedutils
log = tuned.logs.get()
class SchedulerParams(object):
def __init__(self, cmd, cmdline = None, scheduler = None,
priority = None, affinity = None, cgroup = None):
self._cmd = cmd
self.cmdline = cmdline
self.scheduler = scheduler
self.priority = priority
self.affinity = affinity
self.cgroup = cgroup
@property
def affinity(self):
if self._affinity is None:
return None
else:
return self._cmd.bitmask2cpulist(self._affinity)
@affinity.setter
def affinity(self, value):
if value is None:
self._affinity = None
else:
self._affinity = self._cmd.cpulist2bitmask(value)
class IRQAffinities(object):
def __init__(self):
self.irqs = {}
self.default = None
# IRQs that don't support changing CPU affinity:
self.unchangeable = []
class SchedulerUtils(object):
"""
Class encapsulating scheduler implementation in os module
"""
_dict_schedcfg2schedconst = {
"f": "SCHED_FIFO",
"b": "SCHED_BATCH",
"r": "SCHED_RR",
"o": "SCHED_OTHER",
"i": "SCHED_IDLE",
}
def __init__(self):
# {"f": os.SCHED_FIFO...}
self._dict_schedcfg2num = dict((k, getattr(os, name)) for k, name in self._dict_schedcfg2schedconst.items())
# { os.SCHED_FIFO: "SCHED_FIFO"... }
self._dict_num2schedconst = dict((getattr(os, name), name) for name in self._dict_schedcfg2schedconst.values())
def sched_cfg_to_num(self, str_scheduler):
return self._dict_schedcfg2num.get(str_scheduler)
# Reimplementation of schedstr from schedutils for logging purposes
def sched_num_to_const(self, scheduler):
return self._dict_num2schedconst.get(scheduler)
def get_scheduler(self, pid):
return os.sched_getscheduler(pid)
def set_scheduler(self, pid, sched, prio):
os.sched_setscheduler(pid, sched, os.sched_param(prio))
def get_affinity(self, pid):
return os.sched_getaffinity(pid)
def set_affinity(self, pid, affinity):
os.sched_setaffinity(pid, affinity)
def get_priority(self, pid):
return os.sched_getparam(pid).sched_priority
def get_priority_min(self, sched):
return os.sched_get_priority_min(sched)
def get_priority_max(self, sched):
return os.sched_get_priority_max(sched)
class SchedulerUtilsSchedutils(SchedulerUtils):
"""
Class encapsulating scheduler implementation in schedutils module
"""
def __init__(self):
# { "f": schedutils.SCHED_FIFO... }
self._dict_schedcfg2num = dict((k, getattr(schedutils, name)) for k, name in self._dict_schedcfg2schedconst.items())
# { schedutils.SCHED_FIFO: "SCHED_FIFO"... }
self._dict_num2schedconst = dict((getattr(schedutils, name), name) for name in self._dict_schedcfg2schedconst.values())
def get_scheduler(self, pid):
return schedutils.get_scheduler(pid)
def set_scheduler(self, pid, sched, prio):
schedutils.set_scheduler(pid, sched, prio)
def get_affinity(self, pid):
return schedutils.get_affinity(pid)
def set_affinity(self, pid, affinity):
schedutils.set_affinity(pid, affinity)
def get_priority(self, pid):
return schedutils.get_priority(pid)
def get_priority_min(self, sched):
return schedutils.get_priority_min(sched)
def get_priority_max(self, sched):
return schedutils.get_priority_max(sched)
class SchedulerPlugin(base.Plugin):
r"""
`scheduler`::
Allows tuning of scheduling priorities, process/thread/IRQ
affinities, and CPU isolation.
+
To prevent processes/threads/IRQs from using certain CPUs, use
the [option]`isolated_cores` option. It changes process/thread
affinities, IRQs affinities and it sets `default_smp_affinity`
for IRQs. The CPU affinity mask is adjusted for all processes and
threads matching [option]`ps_whitelist` option subject to success
of the `sched_setaffinity()` system call. The default setting of
the [option]`ps_whitelist` regular expression is `.*` to match all
processes and thread names. To exclude certain processes and threads
use [option]`ps_blacklist` option. The value of this option is also
interpreted as a regular expression and process/thread names (`ps -eo
cmd`) are matched against that expression. Profile rollback allows
all matching processes and threads to run on all CPUs and restores
the IRQ settings prior to the profile application.
+
Multiple regular expressions for [option]`ps_whitelist`
and [option]`ps_blacklist` options are allowed and separated by
`;`. Quoted semicolon `\;` is taken literally.
+
.Isolate CPUs 2-4
====
----
[scheduler]
isolated_cores=2-4
ps_blacklist=.*pmd.*;.*PMD.*;^DPDK;.*qemu-kvm.*
----
Isolate CPUs 2-4 while ignoring processes and threads matching
`ps_blacklist` regular expressions.
====
The [option]`irq_process` option controls whether the scheduler plugin
applies the `isolated_cores` parameter to IRQ affinities. The default
value is `true`, which means that the scheduler plugin will move all
possible IRQs away from the isolated cores. When `irq_process` is set
to `false`, the plugin will not change any IRQ affinities.
====
The [option]`default_irq_smp_affinity` option controls the values
*TuneD* writes to `/proc/irq/default_smp_affinity`. The file specifies
default affinity mask that applies to all non-active IRQs. Once an
IRQ is allocated/activated its affinity bitmask will be set to the
default mask.
+
The following values are supported:
+
--
`calc`::
Content of `/proc/irq/default_smp_affinity` will be calculated
from the `isolated_cores` parameter. Non-isolated cores
are calculated as an inversion of the `isolated_cores`. Then
the intersection of the non-isolated cores and the previous
content of `/proc/irq/default_smp_affinity` is written to
`/proc/irq/default_smp_affinity`. If the intersection is
an empty set, then just the non-isolated cores are written to
`/proc/irq/default_smp_affinity`. This behavior is the default if
the parameter `default_irq_smp_affinity` is omitted.
`ignore`::
*TuneD* will not touch `/proc/irq/default_smp_affinity`.
explicit cpulist::
The cpulist (such as 1,3-4) is unpacked and written directly to
`/proc/irq/default_smp_affinity`.
--
+
.An explicit CPU list to set the default IRQ smp affinity to CPUs 0 and 2
====
----
[scheduler]
isolated_cores=1,3
default_irq_smp_affinity=0,2
----
====
To adjust scheduling policy, priority and affinity for a group of
processes/threads, use the following syntax.
+
[subs="+quotes,+macros"]
----
group.__groupname__=__rule_prio__:__sched__:__prio__:__affinity__:__regex__
----
+
where `__rule_prio__` defines internal *TuneD* priority of the
rule. Rules are sorted based on priority. This is needed for
inheritence to be able to reorder previously defined rules. Equal
`__rule_prio__` rules should be processed in the order they were
defined. However, this is Python interpreter dependant. To disable
an inherited rule for `__groupname__` use:
+
[subs="+quotes,+macros"]
----
group.__groupname__=
----
+
`__sched__` must be one of:
*`f`* for FIFO,
*`b`* for batch,
*`r`* for round robin,
*`o`* for other,
*`*`* do not change.
+
`__affinity__` is CPU affinity in hexadecimal. Use `*` for no change.
+
`__prio__` scheduling priority (see `chrt -m`).
+
`__regex__` is Python regular expression. It is matched against the output of
+
[subs="+quotes,+macros"]
----
ps -eo cmd
----
+
Any given process name may match more than one group. In such a case,
the priority and scheduling policy are taken from the last matching
`__regex__`.
+
.Setting scheduling policy and priorities to kernel threads and watchdog
====
----
[scheduler]
group.kthreads=0:*:1:*:\[.*\]$
group.watchdog=0:f:99:*:\[watchdog.*\]
----
====
+
The scheduler plug-in uses perf event loop to catch newly created
processes. By default it listens to `perf.RECORD_COMM` and
`perf.RECORD_EXIT` events. By setting [option]`perf_process_fork`
option to `true`, `perf.RECORD_FORK` events will be also listened
to. In other words, child processes created by the `fork()` system
call will be processed. Since child processes inherit CPU affinity
from their parents, the scheduler plug-in usually does not need to
explicitly process these events. As processing perf events can
pose a significant CPU overhead, the [option]`perf_process_fork`
option parameter is set to `false` by default. Due to this, child
processes are not processed by the scheduler plug-in.
+
The CPU overhead of the scheduler plugin can be mitigated by using
the scheduler [option]`runtime` option and setting it to `0`. This
will completely disable the dynamic scheduler functionality and the
perf events will not be monitored and acted upon. The disadvantage
ot this approach is the procees/thread tuning will be done only at
profile application.
+
.Disabling the scheduler dynamic functionality
====
----
[scheduler]
runtime=0
isolated_cores=1,3
----
====
+
NOTE: For perf events, memory mapped buffer is used. Under heavy load
the buffer may overflow. In such cases the `scheduler` plug-in
may start missing events and failing to process some newly created
processes. Increasing the buffer size may help. The buffer size can
be set with the [option]`perf_mmap_pages` option. The value of this
parameter has to expressed in powers of 2. If it is not the power
of 2, the nearest higher power of 2 value is calculated from it
and this calculated value used. If the [option]`perf_mmap_pages`
option is omitted, the default kernel value is used.
+
The scheduler plug-in supports process/thread confinement using
cgroups v1.
+
[option]`cgroup_mount_point` option specifies the path to mount the
cgroup filesystem or where *TuneD* expects it to be mounted. If unset,
`/sys/fs/cgroup/cpuset` is expected.
+
If [option]`cgroup_groups_init` option is set to `1` *TuneD*
will create (and remove) all cgroups defined with the `cgroup*`
options. This is the default behavior. If it is set to `0` the
cgroups need to be preset by other means.
+
If [option]`cgroup_mount_point_init` option is set to `1`,
*TuneD* will create (and remove) the cgroup mountpoint. It implies
`cgroup_groups_init = 1`. If set to `0` the cgroups mount point
needs to be preset by other means. This is the default behavior.
+
The [option]`cgroup_for_isolated_cores` option is the cgroup
name used for the [option]`isolated_cores` option functionality. For
example, if a system has 4 CPUs, `isolated_cores=1` means that all
processes/threads will be moved to CPUs 0,2-3.
The scheduler plug-in will isolate the specified core by writing
the calculated CPU affinity to the `cpuset.cpus` control file of
the specified cgroup and move all the matching processes/threads to
this group. If this option is unset, classic cpuset affinity using
`sched_setaffinity()` will be used.
+
[option]`cgroup.__cgroup_name__` option defines affinities for
arbitrary cgroups. Even hierarchic cgroups can be used, but the
hieararchy needs to be specified in the correct order. Also *TuneD*
does not do any sanity checks here, with the exception that it forces
the cgroup to be under [option]`cgroup_mount_point`.
+
The syntax of the scheduler option starting with `group.` has been
augmented to use `cgroup.__cgroup_name__` instead of the hexadecimal
`__affinity__`. The matching processes will be moved to the cgroup
`__cgroup_name__`. It is also possible to use cgroups which have
not been defined by the [option]`cgroup.` option as described above,
i.e. cgroups not managed by *TuneD*.
+
All cgroup names are sanitized by replacing all all dots (`.`) with
slashes (`/`). This is to prevent the plug-in from writing outside
[option]`cgroup_mount_point`.
+
.Using cgroups v1 with the scheduler plug-in
====
----
[scheduler]
cgroup_mount_point=/sys/fs/cgroup/cpuset
cgroup_mount_point_init=1
cgroup_groups_init=1
cgroup_for_isolated_cores=group
cgroup.group1=2
cgroup.group2=0,2
group.ksoftirqd=0:f:2:cgroup.group1:ksoftirqd.*
ps_blacklist=ksoftirqd.*;rcuc.*;rcub.*;ktimersoftd.*
isolated_cores=1
----
Cgroup `group1` has the affinity set to CPU 2 and the cgroup `group2`
to CPUs 0,2. Given a 4 CPU setup, the [option]`isolated_cores=1`
option causes all processes/threads to be moved to CPU
cores 0,2-3. Processes/threads that are blacklisted by the
[option]`ps_blacklist` regular expression will not be moved.
The scheduler plug-in will isolate the specified core by writing the
CPU affinity 0,2-3 to the `cpuset.cpus` control file of the `group`
and move all the matching processes/threads to this cgroup.
====
Option [option]`cgroup_ps_blacklist` allows excluding processes
which belong to the blacklisted cgroups. The regular expression specified
by this option is matched against cgroup hierarchies from
`/proc/PID/cgroups`. Cgroups v1 hierarchies from `/proc/PID/cgroups`
are separated by commas ',' prior to regular expression matching. The
following is an example of content against which the regular expression
is matched against: `10:hugetlb:/,9:perf_event:/,8:blkio:/`
+
Multiple regular expressions can be separated by semicolon ';'. The
semicolon represents a logical 'or' operator.
+
.Cgroup-based exclusion of processes from the scheduler
====
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=:/daemons\b
----
The scheduler plug-in will move all processes away from core 1 except processes which
belong to cgroup '/daemons'. The '\b' is a regular expression
metacharacter that matches a word boundary.
----
[scheduler]
isolated_cores=1
cgroup_ps_blacklist=\b8:blkio:
----
The scheduler plug-in will exclude all processes which belong to a cgroup
with hierarchy-ID 8 and controller-list blkio.
====
Recent kernels moved some `sched_` and `numa_balancing_` kernel run-time
parameters from `/proc/sys/kernel`, managed by the `sysctl` utility, to
`debugfs`, typically mounted under `/sys/kernel/debug`. TuneD provides an
abstraction mechanism for the following parameters via the scheduler plug-in:
[option]`sched_min_granularity_ns`, [option]`sched_latency_ns`,
[option]`sched_wakeup_granularity_ns`, [option]`sched_tunable_scaling`,
[option]`sched_migration_cost_ns`, [option]`sched_nr_migrate`,
[option]`numa_balancing_scan_delay_ms`,
[option]`numa_balancing_scan_period_min_ms`,
[option]`numa_balancing_scan_period_max_ms` and
[option]`numa_balancing_scan_size_mb`.
Based on the kernel used, TuneD will write the specified value to the correct
location.
+
.Set tasks' "cache hot" value for migration decisions.
====
----
[scheduler]
sched_migration_cost_ns=500000
----
On the old kernels, this is equivalent to:
----
[sysctl]
kernel.sched_migration_cost_ns=500000
----
that is, value `500000` will be written to `/proc/sys/kernel/sched_migration_cost_ns`.
However, on more recent kernels, the value `500000` will be written to
`/sys/kernel/debug/sched/migration_cost_ns`.
====
"""
def __init__(self, monitor_repository, storage_factory, hardware_inventory, device_matcher, device_matcher_udev, plugin_instance_factory, global_cfg, variables):
super(SchedulerPlugin, self).__init__(monitor_repository, storage_factory, hardware_inventory, device_matcher, device_matcher_udev, plugin_instance_factory, global_cfg, variables)
self._has_dynamic_options = True
self._daemon = consts.CFG_DEF_DAEMON
self._sleep_interval = int(consts.CFG_DEF_SLEEP_INTERVAL)
if global_cfg is not None:
self._daemon = global_cfg.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON)
self._sleep_interval = int(global_cfg.get(consts.CFG_SLEEP_INTERVAL, consts.CFG_DEF_SLEEP_INTERVAL))
self._cmd = commands()
# helper variable utilized for showing hint only once that the error may be caused by Secure Boot
self._secure_boot_hint = None
# paths cache for sched_ and numa_ tunings
self._sched_knob_paths_cache = {}
# default is to whitelist all and blacklist none
self._ps_whitelist = ".*"
self._ps_blacklist = ""
self._cgroup_ps_blacklist_re = ""
self._cpus = perf.cpu_map()
self._scheduler_storage_key = self._storage_key(
command_name = "scheduler")
self._irq_process = True
self._irq_storage_key = self._storage_key(
command_name = "irq")
self._evlist = None
try:
self._scheduler_utils = SchedulerUtils()
except AttributeError:
self._scheduler_utils = SchedulerUtilsSchedutils()
def _calc_mmap_pages(self, mmap_pages):
if mmap_pages is None:
return None
try:
mp = int(mmap_pages)
except ValueError:
return 0
if mp <= 0:
return 0
# round up to the nearest power of two value
return int(2 ** math.ceil(math.log(mp, 2)))
def _instance_init(self, instance):
instance._evlist = None
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
# this is hack, runtime_tuning should be covered by dynamic_tuning configuration
# TODO: add per plugin dynamic tuning configuration and use dynamic_tuning configuration
# instead of runtime_tuning
instance._runtime_tuning = True
# FIXME: do we want to do this here?
# recover original values in case of crash
self._scheduler_original = self._storage.get(
self._scheduler_storage_key, {})
if len(self._scheduler_original) > 0:
log.info("recovering scheduling settings from previous run")
self._restore_ps_affinity()
self._scheduler_original = {}
self._storage.unset(self._scheduler_storage_key)
self._cgroups_original_affinity = dict()
# calculated by isolated_cores setter
self._affinity = None
self._cgroup_affinity_initialized = False
self._cgroup = None
self._cgroups = collections.OrderedDict([(self._sanitize_cgroup_path(option[7:]), self._variables.expand(affinity))
for option, affinity in instance.options.items() if option[:7] == "cgroup." and len(option) > 7])
instance._scheduler = instance.options
perf_mmap_pages_raw = self._variables.expand(instance.options["perf_mmap_pages"])
perf_mmap_pages = self._calc_mmap_pages(perf_mmap_pages_raw)
if perf_mmap_pages == 0:
log.error("Invalid 'perf_mmap_pages' value specified: '%s', using default kernel value" % perf_mmap_pages_raw)
perf_mmap_pages = None
if perf_mmap_pages is not None and str(perf_mmap_pages) != perf_mmap_pages_raw:
log.info("'perf_mmap_pages' value has to be power of two, specified: '%s', using: '%d'" %
(perf_mmap_pages_raw, perf_mmap_pages))
for k in instance._scheduler:
instance._scheduler[k] = self._variables.expand(instance._scheduler[k])
if self._cmd.get_bool(instance._scheduler.get("runtime", 1)) == "0":
instance._runtime_tuning = False
instance._terminate = threading.Event()
if self._daemon and instance._runtime_tuning:
try:
instance._threads = perf.thread_map()
evsel = perf.evsel(type = perf.TYPE_SOFTWARE,
config = perf.COUNT_SW_DUMMY,
task = 1, comm = 1, mmap = 0, freq = 0,
wakeup_events = 1, watermark = 1,
sample_type = perf.SAMPLE_TID | perf.SAMPLE_CPU)
evsel.open(cpus = self._cpus, threads = instance._threads)
instance._evlist = perf.evlist(self._cpus, instance._threads)
instance._evlist.add(evsel)
if perf_mmap_pages is None:
instance._evlist.mmap()
else:
instance._evlist.mmap(pages = perf_mmap_pages)
# no perf
except:
instance._runtime_tuning = False
def _instance_cleanup(self, instance):
if instance._evlist:
for fd in instance._evlist.get_pollfd():
os.close(fd.name)
@classmethod
def _get_config_options(cls):
return {
"isolated_cores": None,
"cgroup_mount_point": consts.DEF_CGROUP_MOUNT_POINT,
"cgroup_mount_point_init": False,
"cgroup_groups_init": True,
"cgroup_for_isolated_cores": None,
"cgroup_ps_blacklist": None,
"ps_whitelist": None,
"ps_blacklist": None,
"irq_process": True,
"default_irq_smp_affinity": "calc",
"perf_mmap_pages": None,
"perf_process_fork": "false",
"sched_min_granularity_ns": None,
"sched_latency_ns": None,
"sched_wakeup_granularity_ns": None,
"sched_tunable_scaling": None,
"sched_migration_cost_ns": None,
"sched_nr_migrate": None,
"numa_balancing_scan_delay_ms": None,
"numa_balancing_scan_period_min_ms": None,
"numa_balancing_scan_period_max_ms": None,
"numa_balancing_scan_size_mb": None
}
def _sanitize_cgroup_path(self, value):
return str(value).replace(".", "/") if value is not None else None
# Raises OSError, IOError
def _get_cmdline(self, process):
if not isinstance(process, procfs.process):
pid = process
process = procfs.process(pid)
cmdline = procfs.process_cmdline(process)
if self._is_kthread(process):
cmdline = "[" + cmdline + "]"
return cmdline
# Raises OSError, IOError
def get_processes(self):
ps = procfs.pidstats()
ps.reload_threads()
processes = {}
for proc in ps.values():
try:
cmd = self._get_cmdline(proc)
pid = proc["pid"]
processes[pid] = cmd
if "threads" in proc:
for pid in proc["threads"].keys():
cmd = self._get_cmdline(proc)
processes[pid] = cmd
except (OSError, IOError) as e:
if e.errno == errno.ENOENT \
or e.errno == errno.ESRCH:
continue
else:
raise
return processes
# Raises OSError
# Raises SystemError with old (pre-0.4) python-schedutils
# instead of OSError
# If PID doesn't exist, errno == ESRCH
def _get_rt(self, pid):
scheduler = self._scheduler_utils.get_scheduler(pid)
sched_str = self._scheduler_utils.sched_num_to_const(scheduler)
priority = self._scheduler_utils.get_priority(pid)
log.debug("Read scheduler policy '%s' and priority '%d' of PID '%d'"
% (sched_str, priority, pid))
return (scheduler, priority)
def _set_rt(self, pid, sched, prio):
sched_str = self._scheduler_utils.sched_num_to_const(sched)
log.debug("Setting scheduler policy to '%s' and priority to '%d' of PID '%d'."
% (sched_str, prio, pid))
try:
prio_min = self._scheduler_utils.get_priority_min(sched)
prio_max = self._scheduler_utils.get_priority_max(sched)
if prio < prio_min or prio > prio_max:
log.error("Priority for %s must be in range %d - %d. '%d' was given."
% (sched_str, prio_min,
prio_max, prio))
# Workaround for old (pre-0.4) python-schedutils which raised
# SystemError instead of OSError
except (SystemError, OSError) as e:
log.error("Failed to get allowed priority range: %s"
% e)
try:
self._scheduler_utils.set_scheduler(pid, sched, prio)
except (SystemError, OSError) as e:
if hasattr(e, "errno") and e.errno == errno.ESRCH:
log.debug("Failed to set scheduling parameters of PID %d, the task vanished."
% pid)
else:
log.error("Failed to set scheduling parameters of PID %d: %s"
% (pid, e))
# process is a procfs.process object
# Raises OSError, IOError
def _is_kthread(self, process):
return process["stat"]["flags"] & procfs.pidstat.PF_KTHREAD != 0
# Return codes:
# 0 - Affinity is fixed
# 1 - Affinity is changeable
# -1 - Task vanished
# -2 - Error
def _affinity_changeable(self, pid):
try:
process = procfs.process(pid)
if process["stat"].is_bound_to_cpu():
if process["stat"]["state"] == "Z":
log.debug("Affinity of zombie task with PID %d cannot be changed, the task's affinity mask is fixed."
% pid)
elif self._is_kthread(process):
log.debug("Affinity of kernel thread with PID %d cannot be changed, the task's affinity mask is fixed."
% pid)
else:
log.warn("Affinity of task with PID %d cannot be changed, the task's affinity mask is fixed."
% pid)
return 0
else:
return 1
except (OSError, IOError) as e:
if e.errno == errno.ENOENT or e.errno == errno.ESRCH:
log.debug("Failed to get task info for PID %d, the task vanished."
% pid)
return -1
else:
log.error("Failed to get task info for PID %d: %s"
% (pid, e))
return -2
except (AttributeError, KeyError) as e:
log.error("Failed to get task info for PID %d: %s"
% (pid, e))
return -2
def _store_orig_process_rt(self, pid, scheduler, priority):
try:
params = self._scheduler_original[pid]
except KeyError:
params = SchedulerParams(self._cmd)
self._scheduler_original[pid] = params
if params.scheduler is None and params.priority is None:
params.scheduler = scheduler
params.priority = priority
def _tune_process_rt(self, pid, sched, prio):
cont = True
if sched is None and prio is None:
return cont
try:
(prev_sched, prev_prio) = self._get_rt(pid)
if sched is None:
sched = prev_sched
self._set_rt(pid, sched, prio)
self._store_orig_process_rt(pid, prev_sched, prev_prio)
except (SystemError, OSError) as e:
if hasattr(e, "errno") and e.errno == errno.ESRCH:
log.debug("Failed to read scheduler policy of PID %d, the task vanished."
% pid)
if pid in self._scheduler_original:
del self._scheduler_original[pid]
cont = False
else:
log.error("Refusing to set scheduler and priority of PID %d, reading original scheduling parameters failed: %s"
% (pid, e))
return cont
def _is_cgroup_affinity(self, affinity):
return str(affinity)[:7] == "cgroup."
def _store_orig_process_affinity(self, pid, affinity, is_cgroup = False):
try:
params = self._scheduler_original[pid]
except KeyError:
params = SchedulerParams(self._cmd)
self._scheduler_original[pid] = params
if params.affinity is None and params.cgroup is None:
if is_cgroup:
params.cgroup = affinity
else:
params.affinity = affinity
def _get_cgroup_affinity(self, pid):
# we cannot use procfs, because it uses comma ',' delimiter which
# can be ambiguous
for l in self._cmd.read_file("%s/%s/%s" % (consts.PROCFS_MOUNT_POINT, str(pid), "cgroup"), no_error = True).split("\n"):
try:
cgroup = l.split(":cpuset:")[1][1:]
return cgroup if cgroup != "" else "/"
except IndexError:
pass
return "/"
# it can be arbitrary cgroup even cgroup we didn't set, but it needs to be
# under "cgroup_mount_point"
def _set_cgroup(self, pid, cgroup):
cgroup = self._sanitize_cgroup_path(cgroup)
path = self._cgroup_mount_point
if cgroup != "/":
path = "%s/%s" % (path, cgroup)
self._cmd.write_to_file("%s/tasks" % path, str(pid), no_error = True)
def _parse_cgroup_affinity(self, cgroup):
# "cgroup.CGROUP"
cgroup = cgroup[7:]
# this should be faster than string comparison
is_cgroup = not isinstance(cgroup, list) and len(cgroup) > 0
return is_cgroup, cgroup
def _tune_process_affinity(self, pid, affinity, intersect = False):
cont = True
if affinity is None:
return cont
try:
(is_cgroup, cgroup) = self._parse_cgroup_affinity(affinity)
if is_cgroup:
prev_affinity = self._get_cgroup_affinity(pid)
self._set_cgroup(pid, cgroup)
else:
prev_affinity = self._get_affinity(pid)
if intersect:
affinity = self._get_intersect_affinity(
prev_affinity, affinity,
affinity)
self._set_affinity(pid, affinity)
self._store_orig_process_affinity(pid,
prev_affinity, is_cgroup)
except (SystemError, OSError) as e:
if hasattr(e, "errno") and e.errno == errno.ESRCH:
log.debug("Failed to read affinity of PID %d, the task vanished."
% pid)
if pid in self._scheduler_original:
del self._scheduler_original[pid]
cont = False
else:
log.error("Refusing to set CPU affinity of PID %d, reading original affinity failed: %s"
% (pid, e))
return cont
#tune process and store previous values
def _tune_process(self, pid, cmd, sched, prio, affinity):
cont = self._tune_process_rt(pid, sched, prio)
if not cont:
return
cont = self._tune_process_affinity(pid, affinity)
if not cont or pid not in self._scheduler_original:
return
self._scheduler_original[pid].cmdline = cmd
def _convert_sched_params(self, str_scheduler, str_priority):
scheduler = self._scheduler_utils.sched_cfg_to_num(str_scheduler)
if scheduler is None and str_scheduler != "*":
log.error("Invalid scheduler: %s. Scheduler and priority will be ignored."
% str_scheduler)
return (None, None)
else:
try:
priority = int(str_priority)
except ValueError:
log.error("Invalid priority: %s. Scheduler and priority will be ignored."
% str_priority)
return (None, None)
return (scheduler, priority)
def _convert_affinity(self, str_affinity):
if str_affinity == "*":
affinity = None
elif self._is_cgroup_affinity(str_affinity):
affinity = str_affinity
else:
affinity = self._cmd.hex2cpulist(str_affinity)
if not affinity:
log.error("Invalid affinity: %s. It will be ignored."
% str_affinity)
affinity = None
return affinity
def _convert_sched_cfg(self, vals):
(rule_prio, scheduler, priority, affinity, regex) = vals
(scheduler, priority) = self._convert_sched_params(
scheduler, priority)
affinity = self._convert_affinity(affinity)
return (rule_prio, scheduler, priority, affinity, regex)
def _cgroup_create_group(self, cgroup):
path = "%s/%s" % (self._cgroup_mount_point, cgroup)
try:
os.mkdir(path, consts.DEF_CGROUP_MODE)
except OSError as e:
log.error("Unable to create cgroup '%s': %s" % (path, e))
if (not self._cmd.write_to_file("%s/%s" % (path, "cpuset.mems"),
self._cmd.read_file("%s/%s" % (self._cgroup_mount_point, "cpuset.mems"), no_error = True),
no_error = True)):
log.error("Unable to initialize 'cpuset.mems ' for cgroup '%s'" % path)
def _cgroup_initialize_groups(self):
if self._cgroup is not None and not self._cgroup in self._cgroups:
self._cgroup_create_group(self._cgroup)
for cg in self._cgroups:
self._cgroup_create_group(cg)
def _cgroup_initialize(self):
log.debug("Initializing cgroups settings")
try:
os.makedirs(self._cgroup_mount_point, consts.DEF_CGROUP_MODE)
except OSError as e:
log.error("Unable to create cgroup mount point: %s" % e)
(ret, out) = self._cmd.execute(["mount", "-t", "cgroup", "-o", "cpuset", "cpuset", self._cgroup_mount_point])
if ret != 0:
log.error("Unable to mount '%s'" % self._cgroup_mount_point)
def _remove_dir(self, cgroup):
try:
os.rmdir(cgroup)
except OSError as e:
log.error("Unable to remove directory '%s': %s" % (cgroup, e))
def _cgroup_finalize_groups(self):
for cg in reversed(self._cgroups):
self._remove_dir("%s/%s" % (self._cgroup_mount_point, cg))
if self._cgroup is not None and not self._cgroup in self._cgroups:
self._remove_dir("%s/%s" % (self._cgroup_mount_point, self._cgroup))
def _cgroup_finalize(self):
log.debug("Removing cgroups settings")
(ret, out) = self._cmd.execute(["umount", self._cgroup_mount_point])
if ret != 0:
log.error("Unable to umount '%s'" % self._cgroup_mount_point)
return False
self._remove_dir(self._cgroup_mount_point)
d = os.path.dirname(self._cgroup_mount_point)
if (d != "/"):
self._remove_dir(d)
def _cgroup_set_affinity_one(self, cgroup, affinity, backup = False):
if affinity != "":
log.debug("Setting cgroup '%s' affinity to '%s'" % (cgroup, affinity))
else:
log.debug("Skipping cgroup '%s', empty affinity requested" % cgroup)
return
path = "%s/%s/%s" % (self._cgroup_mount_point, cgroup, "cpuset.cpus")
if backup:
orig_affinity = self._cmd.read_file(path, err_ret = "ERR", no_error = True).strip()
if orig_affinity != "ERR":
self._cgroups_original_affinity[cgroup] = orig_affinity
else:
log.error("Refusing to set affinity of cgroup '%s', reading original affinity failed" % cgroup)
return
if not self._cmd.write_to_file(path, affinity, no_error = True):
log.error("Unable to set affinity '%s' for cgroup '%s'" % (affinity, cgroup))
def _cgroup_set_affinity(self):
if self._cgroup_affinity_initialized:
return
log.debug("Setting cgroups affinities")
if self._affinity is not None and self._cgroup is not None and not self._cgroup in self._cgroups:
self._cgroup_set_affinity_one(self._cgroup, self._affinity, backup = True)
for cg in self._cgroups.items():
self._cgroup_set_affinity_one(cg[0], cg[1], backup = True)
self._cgroup_affinity_initialized = True
def _cgroup_restore_affinity(self):
log.debug("Restoring cgroups affinities")
for cg in self._cgroups_original_affinity.items():
self._cgroup_set_affinity_one(cg[0], cg[1])
def _instance_apply_static(self, instance):
# need to get "cgroup_mount_point_init", "cgroup_mount_point", "cgroup_groups_init",
# "cgroup", and initialize mount point and cgroups before super class implementation call
self._cgroup_mount_point = self._variables.expand(instance.options["cgroup_mount_point"])
self._cgroup_mount_point_init = self._cmd.get_bool(self._variables.expand(
instance.options["cgroup_mount_point_init"])) == "1"
self._cgroup_groups_init = self._cmd.get_bool(self._variables.expand(
instance.options["cgroup_groups_init"])) == "1"
self._cgroup = self._sanitize_cgroup_path(self._variables.expand(
instance.options["cgroup_for_isolated_cores"]))
if self._cgroup_mount_point_init:
self._cgroup_initialize()
if self._cgroup_groups_init or self._cgroup_mount_point_init:
self._cgroup_initialize_groups()
super(SchedulerPlugin, self)._instance_apply_static(instance)
self._cgroup_set_affinity()
try:
ps = self.get_processes()
except (OSError, IOError) as e:
log.error("error applying tuning, cannot get information about running processes: %s"
% e)
return
sched_cfg = [(option, str(value).split(":", 4)) for option, value in instance._scheduler.items()]
buf = [(option, self._convert_sched_cfg(vals))
for option, vals in sched_cfg
if re.match(r"group\.", option)
and len(vals) == 5]
sched_cfg = sorted(buf, key=lambda option_vals: option_vals[1][0])
sched_all = dict()
# for runtime tuning
instance._sched_lookup = {}
for option, (rule_prio, scheduler, priority, affinity, regex) \
in sched_cfg:
try:
r = re.compile(regex)
except re.error as e:
log.error("error compiling regular expression: '%s'" % str(regex))
continue
processes = [(pid, cmd) for pid, cmd in ps.items() if re.search(r, cmd) is not None]
#cmd - process name, option - group name
sched = dict([(pid, (cmd, option, scheduler, priority, affinity, regex))
for pid, cmd in processes])
sched_all.update(sched)
# make any contained regexes non-capturing: replace "(" with "(?:",
# unless the "(" is preceded by "\" or followed by "?"
regex = re.sub(r"(?<!\\)\((?!\?)", "(?:", str(regex))
instance._sched_lookup[regex] = [scheduler, priority, affinity]
for pid, (cmd, option, scheduler, priority, affinity, regex) \
in sched_all.items():
self._tune_process(pid, cmd, scheduler,
priority, affinity)
self._storage.set(self._scheduler_storage_key,
self._scheduler_original)
if self._daemon and instance._runtime_tuning:
instance._thread = threading.Thread(target = self._thread_code, args = [instance])
instance._thread.start()
def _restore_ps_affinity(self):
try:
ps = self.get_processes()
except (OSError, IOError) as e:
log.error("error unapplying tuning, cannot get information about running processes: %s"
% e)
return
for pid, orig_params in self._scheduler_original.items():
# if command line for the pid didn't change, it's very probably the same process
if pid not in ps or ps[pid] != orig_params.cmdline:
continue
if orig_params.scheduler is not None \
and orig_params.priority is not None:
self._set_rt(pid, orig_params.scheduler,
orig_params.priority)
if orig_params.cgroup is not None:
self._set_cgroup(pid, orig_params.cgroup)
elif orig_params.affinity is not None:
self._set_affinity(pid, orig_params.affinity)
self._scheduler_original = {}
self._storage.unset(self._scheduler_storage_key)
def _cgroup_cleanup_tasks_one(self, cgroup):
cnt = int(consts.CGROUP_CLEANUP_TASKS_RETRY)
data = " "
while data != "" and cnt > 0:
data = self._cmd.read_file("%s/%s/%s" % (self._cgroup_mount_point, cgroup, "tasks"),
err_ret = " ", no_error = True)
if data not in ["", " "]:
for l in data.split("\n"):
self._cmd.write_to_file("%s/%s" % (self._cgroup_mount_point, "tasks"), l, no_error = True)
cnt -= 1
if cnt == 0:
log.warn("Unable to cleanup tasks from cgroup '%s'" % cgroup)
def _cgroup_cleanup_tasks(self):
if self._cgroup is not None and not self._cgroup in self._cgroups:
self._cgroup_cleanup_tasks_one(self._cgroup)
for cg in self._cgroups:
self._cgroup_cleanup_tasks_one(cg)
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
super(SchedulerPlugin, self)._instance_unapply_static(instance, rollback)
if self._daemon and instance._runtime_tuning:
instance._terminate.set()
instance._thread.join()
self._restore_ps_affinity()
self._cgroup_restore_affinity()
self._cgroup_cleanup_tasks()
if self._cgroup_groups_init or self._cgroup_mount_point_init:
self._cgroup_finalize_groups()
if self._cgroup_mount_point_init:
self._cgroup_finalize()
def _cgroup_verify_affinity_one(self, cgroup, affinity):
log.debug("Verifying cgroup '%s' affinity" % cgroup)
path = "%s/%s/%s" % (self._cgroup_mount_point, cgroup, "cpuset.cpus")
current_affinity = self._cmd.read_file(path, err_ret = "ERR", no_error = True)
if current_affinity == "ERR":
return True
current_affinity = self._cmd.cpulist2string(self._cmd.cpulist_pack(current_affinity))
affinity = self._cmd.cpulist2string(self._cmd.cpulist_pack(affinity))
affinity_description = "cgroup '%s' affinity" % cgroup
if current_affinity == affinity:
log.info(consts.STR_VERIFY_PROFILE_VALUE_OK
% (affinity_description, current_affinity))
return True
else:
log.error(consts.STR_VERIFY_PROFILE_VALUE_FAIL
% (affinity_description, current_affinity,
affinity))
return False
def _cgroup_verify_affinity(self):
log.debug("Veryfying cgroups affinities")
ret = True
if self._affinity is not None and self._cgroup is not None and not self._cgroup in self._cgroups:
ret = ret and self._cgroup_verify_affinity_one(self._cgroup, self._affinity)
for cg in self._cgroups.items():
ret = ret and self._cgroup_verify_affinity_one(cg[0], cg[1])
return ret
def _instance_verify_static(self, instance, ignore_missing, devices):
ret1 = super(SchedulerPlugin, self)._instance_verify_static(instance, ignore_missing, devices)
ret2 = self._cgroup_verify_affinity()
return ret1 and ret2
def _add_pid(self, instance, pid, r):
try:
cmd = self._get_cmdline(pid)
except (OSError, IOError) as e:
if e.errno == errno.ENOENT \
or e.errno == errno.ESRCH:
log.debug("Failed to get cmdline of PID %d, the task vanished."
% pid)
else:
log.error("Failed to get cmdline of PID %d: %s"
% (pid, e))
return
v = self._cmd.re_lookup(instance._sched_lookup, cmd, r)
if v is not None and not pid in self._scheduler_original:
log.debug("tuning new process '%s' with PID '%d' by '%s'" % (cmd, pid, str(v)))
(sched, prio, affinity) = v
self._tune_process(pid, cmd, sched, prio,
affinity)
self._storage.set(self._scheduler_storage_key,
self._scheduler_original)
def _remove_pid(self, instance, pid):
if pid in self._scheduler_original:
del self._scheduler_original[pid]
log.debug("removed PID %d from the rollback database" % pid)
self._storage.set(self._scheduler_storage_key,
self._scheduler_original)
def _thread_code(self, instance):
r = self._cmd.re_lookup_compile(instance._sched_lookup)
poll = select.poll()
# Store the file objects in a local variable so that they don't
# go out of scope too soon. This is a workaround for
# python3-perf bug rhbz#1659445.
fds = instance._evlist.get_pollfd()
for fd in fds:
poll.register(fd)
while not instance._terminate.is_set():
# timeout to poll in milliseconds
if len(poll.poll(self._sleep_interval * 1000)) > 0 and not instance._terminate.is_set():
read_events = True
while read_events:
read_events = False
for cpu in self._cpus:
event = instance._evlist.read_on_cpu(cpu)
if event:
read_events = True
if event.type == perf.RECORD_COMM or \
(self._perf_process_fork_value and event.type == perf.RECORD_FORK):
self._add_pid(instance, int(event.tid), r)
elif event.type == perf.RECORD_EXIT:
self._remove_pid(instance, int(event.tid))
@command_custom("cgroup_ps_blacklist", per_device = False)
def _cgroup_ps_blacklist(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
self._cgroup_ps_blacklist_re = "|".join(["(%s)" % v for v in re.split(r"(?<!\\);", str(value))])
@command_custom("ps_whitelist", per_device = False)
def _ps_whitelist(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
self._ps_whitelist = "|".join(["(%s)" % v for v in re.split(r"(?<!\\);", str(value))])
@command_custom("ps_blacklist", per_device = False)
def _ps_blacklist(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
self._ps_blacklist = "|".join(["(%s)" % v for v in re.split(r"(?<!\\);", str(value))])
@command_custom("irq_process", per_device = False)
def _irq_process(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
self._irq_process = self._cmd.get_bool(value) == "1"
@command_custom("default_irq_smp_affinity", per_device = False)
def _default_irq_smp_affinity(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
if value in ["calc", "ignore"]:
self._default_irq_smp_affinity_value = value
else:
self._default_irq_smp_affinity_value = self._cmd.cpulist_unpack(value)
@command_custom("perf_process_fork", per_device = False)
def _perf_process_fork(self, enabling, value, verify, ignore_missing):
# currently unsupported
if verify:
return None
if enabling and value is not None:
self._perf_process_fork_value = self._cmd.get_bool(value) == "1"
# Raises OSError
# Raises SystemError with old (pre-0.4) python-schedutils
# instead of OSError
# If PID doesn't exist, errno == ESRCH
def _get_affinity(self, pid):
res = self._scheduler_utils.get_affinity(pid)
log.debug("Read affinity '%s' of PID %d" % (res, pid))
return res
def _set_affinity(self, pid, affinity):
log.debug("Setting CPU affinity of PID %d to '%s'." % (pid, affinity))
try:
self._scheduler_utils.set_affinity(pid, affinity)
return True
# Workaround for old python-schedutils (pre-0.4) which
# incorrectly raised SystemError instead of OSError
except (SystemError, OSError) as e:
if hasattr(e, "errno") and e.errno == errno.ESRCH:
log.debug("Failed to set affinity of PID %d, the task vanished."
% pid)
else:
res = self._affinity_changeable(pid)
if res == 1 or res == -2:
log.error("Failed to set affinity of PID %d to '%s': %s"
% (pid, affinity, e))
return False
# returns intersection of affinity1 with affinity2, if intersection is empty it returns affinity3
def _get_intersect_affinity(self, affinity1, affinity2, affinity3):
aff = set(affinity1).intersection(set(affinity2))
if aff:
return list(aff)
return affinity3
def _set_all_obj_affinity(self, objs, affinity, threads = False):
psl = [v for v in objs if re.search(self._ps_whitelist,
self._get_stat_comm(v)) is not None]
if self._ps_blacklist != "":
psl = [v for v in psl if re.search(self._ps_blacklist,
self._get_stat_comm(v)) is None]
if self._cgroup_ps_blacklist_re != "":
psl = [v for v in psl if re.search(self._cgroup_ps_blacklist_re,
self._get_stat_cgroup(v)) is None]
psd = dict([(v.pid, v) for v in psl])
for pid in psd:
try:
cmd = self._get_cmdline(psd[pid])
except (OSError, IOError) as e:
if e.errno == errno.ENOENT \
or e.errno == errno.ESRCH:
log.debug("Failed to get cmdline of PID %d, the task vanished."
% pid)
else:
log.error("Refusing to set affinity of PID %d, failed to get its cmdline: %s"
% (pid, e))
continue
cont = self._tune_process_affinity(pid, affinity,
intersect = True)
if not cont:
continue
if pid in self._scheduler_original:
self._scheduler_original[pid].cmdline = cmd
# process threads
if not threads and "threads" in psd[pid]:
self._set_all_obj_affinity(
psd[pid]["threads"].values(),
affinity, True)
def _get_stat_cgroup(self, o):
try:
return o["cgroups"]
except (OSError, IOError, KeyError):
return ""
def _get_stat_comm(self, o):
try:
return o["stat"]["comm"]
except (OSError, IOError, KeyError):
return ""
def _set_ps_affinity(self, affinity):
try:
ps = procfs.pidstats()
ps.reload_threads()
self._set_all_obj_affinity(ps.values(), affinity, False)
except (OSError, IOError) as e:
log.error("error applying tuning, cannot get information about running processes: %s"
% e)
# Returns 0 on success, -2 if changing the affinity is not
# supported, -1 if some other error occurs.
def _set_irq_affinity(self, irq, affinity, restoring):
try:
affinity_hex = self._cmd.cpulist2hex(affinity)
log.debug("Setting SMP affinity of IRQ %s to '%s'"
% (irq, affinity_hex))
filename = "/proc/irq/%s/smp_affinity" % irq
with open(filename, "w") as f:
f.write(affinity_hex)
return 0
except (OSError, IOError) as e:
# EIO is returned by
# kernel/irq/proc.c:write_irq_affinity() if changing
# the affinity is not supported
# (at least on kernels 3.10 and 4.18)
if hasattr(e, "errno") and e.errno == errno.EIO \
and not restoring:
log.debug("Setting SMP affinity of IRQ %s is not supported"
% irq)
return -2
else:
log.error("Failed to set SMP affinity of IRQ %s to '%s': %s"
% (irq, affinity_hex, e))
return -1
def _set_default_irq_affinity(self, affinity):
try:
affinity_hex = self._cmd.cpulist2hex(affinity)
log.debug("Setting default SMP IRQ affinity to '%s'"
% affinity_hex)
with open("/proc/irq/default_smp_affinity", "w") as f:
f.write(affinity_hex)
except (OSError, IOError) as e:
log.error("Failed to set default SMP IRQ affinity to '%s': %s"
% (affinity_hex, e))
def _set_all_irq_affinity(self, affinity):
irq_original = IRQAffinities()
irqs = procfs.interrupts()
for irq in irqs.keys():
try:
prev_affinity = irqs[irq]["affinity"]
log.debug("Read affinity of IRQ '%s': '%s'"
% (irq, prev_affinity))
except KeyError:
continue
_affinity = self._get_intersect_affinity(prev_affinity, affinity, affinity)
if set(_affinity) == set(prev_affinity):
continue
res = self._set_irq_affinity(irq, _affinity, False)
if res == 0:
irq_original.irqs[irq] = prev_affinity
elif res == -2:
irq_original.unchangeable.append(irq)
# default affinity
prev_affinity_hex = self._cmd.read_file("/proc/irq/default_smp_affinity")
prev_affinity = self._cmd.hex2cpulist(prev_affinity_hex)
if self._default_irq_smp_affinity_value == "calc":
_affinity = self._get_intersect_affinity(prev_affinity, affinity, affinity)
elif self._default_irq_smp_affinity_value != "ignore":
_affinity = self._default_irq_smp_affinity_value
if self._default_irq_smp_affinity_value != "ignore":
self._set_default_irq_affinity(_affinity)
irq_original.default = prev_affinity
self._storage.set(self._irq_storage_key, irq_original)
def _restore_all_irq_affinity(self):
irq_original = self._storage.get(self._irq_storage_key, None)
if irq_original is None:
return
for irq, affinity in irq_original.irqs.items():
self._set_irq_affinity(irq, affinity, True)
if self._default_irq_smp_affinity_value != "ignore":
affinity = irq_original.default
self._set_default_irq_affinity(affinity)
self._storage.unset(self._irq_storage_key)
def _verify_irq_affinity(self, irq_description, correct_affinity,
current_affinity):
res = set(current_affinity).issubset(set(correct_affinity))
if res:
log.info(consts.STR_VERIFY_PROFILE_VALUE_OK
% (irq_description, current_affinity))
else:
log.error(consts.STR_VERIFY_PROFILE_VALUE_FAIL
% (irq_description, current_affinity,
correct_affinity))
return res
def _verify_all_irq_affinity(self, correct_affinity, ignore_missing):
irq_original = self._storage.get(self._irq_storage_key, None)
irqs = procfs.interrupts()
res = True
for irq in irqs.keys():
if irq in irq_original.unchangeable and ignore_missing:
description = "IRQ %s does not support changing SMP affinity" % irq
log.info(consts.STR_VERIFY_PROFILE_VALUE_MISSING % description)
continue
try:
current_affinity = irqs[irq]["affinity"]
log.debug("Read SMP affinity of IRQ '%s': '%s'"
% (irq, current_affinity))
irq_description = "SMP affinity of IRQ %s" % irq
if not self._verify_irq_affinity(
irq_description,
correct_affinity,
current_affinity):
res = False
except KeyError:
continue
current_affinity_hex = self._cmd.read_file(
"/proc/irq/default_smp_affinity")
current_affinity = self._cmd.hex2cpulist(current_affinity_hex)
if self._default_irq_smp_affinity_value != "ignore" and not self._verify_irq_affinity("default IRQ SMP affinity",
current_affinity, correct_affinity if self._default_irq_smp_affinity_value == "calc" else
self._default_irq_smp_affinity_value):
res = False
return res
@command_custom("isolated_cores", per_device = False, priority = 10)
def _isolated_cores(self, enabling, value, verify, ignore_missing):
affinity = None
self._affinity = None
if value is not None:
isolated = set(self._cmd.cpulist_unpack(value))
present = set(self._cpus)
if isolated.issubset(present):
affinity = list(present - isolated)
self._affinity = self._cmd.cpulist2string(affinity)
else:
str_cpus = self._cmd.cpulist2string(self._cpus)
log.error("Invalid isolated_cores specified, '%s' does not match available cores '%s'"
% (value, str_cpus))
if (enabling or verify) and affinity is None:
return None
# currently only IRQ affinity verification is supported
if verify:
if self._irq_process:
return self._verify_all_irq_affinity(affinity, ignore_missing)
return True
elif enabling:
if self._cgroup:
self._cgroup_set_affinity()
ps_affinity = "cgroup.%s" % self._cgroup
else:
ps_affinity = affinity
self._set_ps_affinity(ps_affinity)
if self._irq_process:
self._set_all_irq_affinity(affinity)
else:
# Restoring processes' affinity is done in
# _instance_unapply_static()
if self._irq_process:
self._restore_all_irq_affinity()
def _get_sched_knob_path(self, prefix, namespace, knob):
key = "%s_%s_%s" % (prefix, namespace, knob)
path = self._sched_knob_paths_cache.get(key)
if path:
return path
path = "/proc/sys/kernel/%s_%s" % (namespace, knob)
if not os.path.exists(path):
if prefix == "":
path = "%s/%s" % (namespace, knob)
else:
path = "%s/%s/%s" % (prefix, namespace, knob)
path = "/sys/kernel/debug/%s" % path
if self._secure_boot_hint is None:
self._secure_boot_hint = True
self._sched_knob_paths_cache[key] = path
return path
def _get_sched_knob(self, prefix, namespace, knob):
data = self._cmd.read_file(self._get_sched_knob_path(prefix, namespace, knob), err_ret = None)
if data is None:
log.error("Error reading '%s'" % knob)
if self._secure_boot_hint:
log.error("This may not work with Secure Boot or kernel_lockdown (this hint is logged only once)")
self._secure_boot_hint = False
return data
def _set_sched_knob(self, prefix, namespace, knob, value, sim, remove = False):
if value is None:
return None
if not sim:
if not self._cmd.write_to_file(self._get_sched_knob_path(prefix, namespace, knob), value, \
no_error = [errno.ENOENT] if remove else False):
log.error("Error writing value '%s' to '%s'" % (value, knob))
return value
@command_get("sched_min_granularity_ns")
def _get_sched_min_granularity_ns(self):
return self._get_sched_knob("", "sched", "min_granularity_ns")
@command_set("sched_min_granularity_ns")
def _set_sched_min_granularity_ns(self, value, sim, remove):
return self._set_sched_knob("", "sched", "min_granularity_ns", value, sim, remove)
@command_get("sched_latency_ns")
def _get_sched_latency_ns(self):
return self._get_sched_knob("", "sched", "latency_ns")
@command_set("sched_latency_ns")
def _set_sched_latency_ns(self, value, sim, remove):
return self._set_sched_knob("", "sched", "latency_ns", value, sim, remove)
@command_get("sched_wakeup_granularity_ns")
def _get_sched_wakeup_granularity_ns(self):
return self._get_sched_knob("", "sched", "wakeup_granularity_ns")
@command_set("sched_wakeup_granularity_ns")
def _set_sched_wakeup_granularity_ns(self, value, sim, remove):
return self._set_sched_knob("", "sched", "wakeup_granularity_ns", value, sim, remove)
@command_get("sched_tunable_scaling")
def _get_sched_tunable_scaling(self):
return self._get_sched_knob("", "sched", "tunable_scaling")
@command_set("sched_tunable_scaling")
def _set_sched_tunable_scaling(self, value, sim, remove):
return self._set_sched_knob("", "sched", "tunable_scaling", value, sim, remove)
@command_get("sched_migration_cost_ns")
def _get_sched_migration_cost_ns(self):
return self._get_sched_knob("", "sched", "migration_cost_ns")
@command_set("sched_migration_cost_ns")
def _set_sched_migration_cost_ns(self, value, sim, remove):
return self._set_sched_knob("", "sched", "migration_cost_ns", value, sim, remove)
@command_get("sched_nr_migrate")
def _get_sched_nr_migrate(self):
return self._get_sched_knob("", "sched", "nr_migrate")
@command_set("sched_nr_migrate")
def _set_sched_nr_migrate(self, value, sim, remove):
return self._set_sched_knob("", "sched", "nr_migrate", value, sim, remove)
@command_get("numa_balancing_scan_delay_ms")
def _get_numa_balancing_scan_delay_ms(self):
return self._get_sched_knob("sched", "numa_balancing", "scan_delay_ms")
@command_set("numa_balancing_scan_delay_ms")
def _set_numa_balancing_scan_delay_ms(self, value, sim, remove):
return self._set_sched_knob("sched", "numa_balancing", "scan_delay_ms", value, sim, remove)
@command_get("numa_balancing_scan_period_min_ms")
def _get_numa_balancing_scan_period_min_ms(self):
return self._get_sched_knob("sched", "numa_balancing", "scan_period_min_ms")
@command_set("numa_balancing_scan_period_min_ms")
def _set_numa_balancing_scan_period_min_ms(self, value, sim, remove):
return self._set_sched_knob("sched", "numa_balancing", "scan_period_min_ms", value, sim, remove)
@command_get("numa_balancing_scan_period_max_ms")
def _get_numa_balancing_scan_period_max_ms(self):
return self._get_sched_knob("sched", "numa_balancing", "scan_period_max_ms")
@command_set("numa_balancing_scan_period_max_ms")
def _set_numa_balancing_scan_period_max_ms(self, value, sim, remove):
return self._set_sched_knob("sched", "numa_balancing", "scan_period_max_ms", value, sim, remove)
@command_get("numa_balancing_scan_size_mb")
def _get_numa_balancing_scan_size_mb(self):
return self._get_sched_knob("sched", "numa_balancing", "scan_size_mb")
@command_set("numa_balancing_scan_size_mb")
def _set_numa_balancing_scan_size_mb(self, value, sim, remove):
return self._set_sched_knob("sched", "numa_balancing", "scan_size_mb", value, sim, remove)
plugins/plugin_acpi.py 0000644 00000004616 15035135375 0011107 0 ustar 00 from . import base
from .decorators import *
import os
import errno
import tuned.logs
from tuned.consts import ACPI_DIR
log = tuned.logs.get()
class ACPIPlugin(base.Plugin):
"""
`acpi`::
Configures the ACPI driver.
+
The only currently supported option is
[option]`platform_profile`, which sets the ACPI
platform profile sysfs attribute,
a generic power/performance preference API for other drivers.
Multiple profiles can be specified, separated by `|`.
The first available profile is selected.
+
--
.Selecting a platform profile
====
----
[acpi]
platform_profile=balanced|low-power
----
Using this option, *TuneD* will try to set the platform profile
to `balanced`. If that fails, it will try to set it to `low-power`.
====
--
"""
def __init__(self, *args, **kwargs):
super(ACPIPlugin, self).__init__(*args, **kwargs)
@classmethod
def _get_config_options(cls):
return {"platform_profile": None}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
@classmethod
def _platform_profile_choices_path(cls):
return os.path.join(ACPI_DIR, "platform_profile_choices")
@classmethod
def _platform_profile_path(cls):
return os.path.join(ACPI_DIR, "platform_profile")
@command_set("platform_profile")
def _set_platform_profile(self, profiles, sim, remove):
if not os.path.isfile(self._platform_profile_path()):
log.debug("ACPI platform_profile is not supported on this system")
return None
profiles = [profile.strip() for profile in profiles.split('|')]
avail_profiles = set(self._cmd.read_file(self._platform_profile_choices_path()).split())
for profile in profiles:
if profile in avail_profiles:
if not sim:
log.info("Setting platform_profile to '%s'" % profile)
self._cmd.write_to_file(self._platform_profile_path(), profile, \
no_error=[errno.ENOENT] if remove else False)
return profile
log.warn("Requested platform_profile '%s' unavailable" % profile)
log.error("Failed to set platform_profile. Is the value in the profile correct?")
return None
@command_get("platform_profile")
def _get_platform_profile(self, ignore_missing=False):
if not os.path.isfile(self._platform_profile_path()):
log.debug("ACPI platform_profile is not supported on this system")
return None
return self._cmd.read_file(self._platform_profile_path()).strip()
plugins/plugin_service.py 0000644 00000024741 15035135375 0011634 0 ustar 00 from . import base
import collections
import tuned.consts as consts
from .decorators import *
import os
import re
import tuned.logs
from tuned.utils.commands import commands
log = tuned.logs.get()
cmd = commands()
class Service():
def __init__(self, start = None, enable = None, cfg_file = None, runlevel = None):
self.enable = enable
self.start = start
self.cfg_file = cfg_file
self.runlevel = runlevel
class InitHandler():
def runlevel_get(self):
(retcode, out) = cmd.execute(["runlevel"])
return out.split()[-1] if retcode == 0 else None
def daemon_reload(self):
cmd.execute(["telinit", "q"])
def cfg_install(self, name, cfg_file):
pass
def cfg_uninstall(self, name, cfg_file):
pass
def cfg_verify(self, name, cfg_file):
return None
# no enable/disable
class SysVBasicHandler(InitHandler):
def start(self, name):
cmd.execute(["service", name, "start"])
def stop(self, name):
cmd.execute(["service", name, "stop"])
def enable(self, name, runlevel):
raise NotImplementedError()
def disable(self, name, runlevel):
raise NotImplementedError()
def is_running(self, name):
(retcode, out) = cmd.execute(["service", name, "status"], no_errors = [0])
return retcode == 0
def is_enabled(self, name, runlevel):
raise NotImplementedError()
class SysVHandler(SysVBasicHandler):
def enable(self, name, runlevel):
cmd.execute(["chkconfig", "--level", runlevel, name, "on"])
def disable(self, name, runlevel):
cmd.execute(["chkconfig", "--level", runlevel, name, "off"])
def is_enabled(self, name, runlevel):
(retcode, out) = cmd.execute(["chkconfig", "--list", name])
return out.split("%s:" % str(runlevel))[1][:2] == "on" if retcode == 0 else None
class SysVRCHandler(SysVBasicHandler):
def enable(self, name, runlevel):
cmd.execute(["sysv-rc-conf", "--level", runlevel, name, "on"])
def disable(self, name, runlevel):
cmd.execute(["sysv-rc-conf", "--level", runlevel, name, "off"])
def is_enabled(self, name, runlevel):
(retcode, out) = cmd.execute(["sysv-rc-conf", "--list", name])
return out.split("%s:" % str(runlevel))[1][:2] == "on" if retcode == 0 else None
class OpenRCHandler(InitHandler):
def runlevel_get(self):
(retcode, out) = cmd.execute(["rc-status", "-r"])
return out.strip() if retcode == 0 else None
def start(self, name):
cmd.execute(["rc-service", name, "start"])
def stop(self, name):
cmd.execute(["rc-service", name, "stop"])
def enable(self, name, runlevel):
cmd.execute(["rc-update", "add", name, runlevel])
def disable(self, name, runlevel):
cmd.execute(["rc-update", "del", name, runlevel])
def is_running(self, name):
(retcode, out) = cmd.execute(["rc-service", name, "status"], no_errors = [0])
return retcode == 0
def is_enabled(self, name, runlevel):
(retcode, out) = cmd.execute(["rc-update", "show", runlevel])
return bool(re.search(r"\b" + re.escape(name) + r"\b", out))
class SystemdHandler(InitHandler):
# runlevel not used
def runlevel_get(self):
return ""
def start(self, name):
cmd.execute(["systemctl", "restart", name])
def stop(self, name):
cmd.execute(["systemctl", "stop", name])
def enable(self, name, runlevel):
cmd.execute(["systemctl", "enable", name])
def disable(self, name, runlevel):
cmd.execute(["systemctl", "disable", name])
def is_running(self, name):
(retcode, out) = cmd.execute(["systemctl", "is-active", name], no_errors = [0])
return retcode == 0
def is_enabled(self, name, runlevel):
(retcode, out) = cmd.execute(["systemctl", "is-enabled", name], no_errors = [0])
status = out.strip()
return True if status == "enabled" else False if status =="disabled" else None
def cfg_install(self, name, cfg_file):
log.info("installing service configuration overlay file '%s' for service '%s'" % (cfg_file, name))
if not os.path.exists(cfg_file):
log.error("Unable to find service configuration '%s'" % cfg_file)
return
dirpath = consts.SERVICE_SYSTEMD_CFG_PATH % name
try:
os.makedirs(dirpath, consts.DEF_SERVICE_CFG_DIR_MODE)
except OSError as e:
log.error("Unable to create directory '%s': %s" % (dirpath, e))
return
cmd.copy(cfg_file, dirpath)
self.daemon_reload()
def cfg_uninstall(self, name, cfg_file):
log.info("uninstalling service configuration overlay file '%s' for service '%s'" % (cfg_file, name))
dirpath = consts.SERVICE_SYSTEMD_CFG_PATH % name
path = "%s/%s" % (dirpath, os.path.basename(cfg_file))
cmd.unlink(path)
self.daemon_reload()
# remove the service dir if empty, do not check for errors
try:
os.rmdir(dirpath)
except (FileNotFoundError, OSError):
pass
def cfg_verify(self, name, cfg_file):
if cfg_file is None:
return None
path = "%s/%s" % (consts.SERVICE_SYSTEMD_CFG_PATH % name, os.path.basename(cfg_file))
if not os.path.exists(cfg_file):
log.error("Unable to find service '%s' configuration '%s'" % (name, cfg_file))
return False
if not os.path.exists(path):
log.error("Service '%s' configuration not installed in '%s'" % (name, path))
return False
sha256sum1 = cmd.sha256sum(cfg_file)
sha256sum2 = cmd.sha256sum(path)
return sha256sum1 == sha256sum2
class ServicePlugin(base.Plugin):
"""
`service`::
Plug-in for handling sysvinit, sysv-rc, openrc and systemd services.
+
The syntax is as follows:
+
[subs="+quotes,+macros"]
----
[service]
service.__service_name__=__commands__[,file:__file__]
----
+
Supported service-handling `_commands_` are `start`, `stop`, `enable`
and `disable`. The optional `file:__file__` directive installs an overlay
configuration file `__file__`. Multiple commands must be comma (`,`)
or semicolon (`;`) separated. If the directives conflict, the last
one is used.
+
The service plugin supports configuration overlays only for systemd.
In other init systems, this directive is ignored. The configuration
overlay files are copied to `/etc/systemd/system/__service_name__.service.d/`
directories. Upon profile unloading, the directory is removed if it is empty.
+
With systemd, the `start` command is implemented by `restart` in order
to allow loading of the service configuration file overlay.
+
NOTE: With non-systemd init systems, the plug-in operates on the
current runlevel only.
+
.Start and enable the `sendmail` service with an overlay file
====
----
[service]
service.sendmail=start,enable,file:${i:PROFILE_DIR}/tuned-sendmail.conf
----
The internal variable `${i:PROFILE_DIR}` points to the directory
from which the profile is loaded.
====
"""
def __init__(self, *args, **kwargs):
super(ServicePlugin, self).__init__(*args, **kwargs)
self._has_dynamic_options = True
self._init_handler = self._detect_init_system()
def _check_cmd(self, command):
(retcode, out) = cmd.execute(command, no_errors = [0])
return retcode == 0
def _detect_init_system(self):
if self._check_cmd(["systemctl", "status"]):
log.debug("detected systemd")
return SystemdHandler()
elif self._check_cmd(["chkconfig"]):
log.debug("detected generic sysvinit")
return SysVHandler()
elif self._check_cmd(["update-rc.d", "-h"]):
log.debug("detected sysv-rc")
return SysVRCHandler()
elif self._check_cmd(["rc-update", "-h"]):
log.debug("detected openrc")
return OpenRCHandler()
else:
raise exceptions.NotSupportedPluginException("Unable to detect your init system, disabling the plugin.")
def _parse_service_options(self, name, val):
l = re.split(r"\s*[,;]\s*", val)
service = Service()
for i in l:
if i == "enable":
service.enable = True
elif i == "disable":
service.enable = False
elif i == "start":
service.start = True
elif i == "stop":
service.start = False
elif i[:5] == "file:":
service.cfg_file = i[5:]
else:
log.error("service '%s': invalid service option: '%s'" % (name, i))
return service
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
self._services = collections.OrderedDict([(option[8:], self._parse_service_options(option[8:],
self._variables.expand(value))) for option, value in instance.options.items()
if option[:8] == "service." and len(option) > 8])
instance._services_original = {}
def _instance_cleanup(self, instance):
pass
def _process_service(self, name, start, enable, runlevel):
if start:
self._init_handler.start(name)
elif start is not None:
self._init_handler.stop(name)
if enable:
self._init_handler.enable(name, runlevel)
elif enable is not None:
self._init_handler.disable(name, runlevel)
def _instance_apply_static(self, instance):
runlevel = self._init_handler.runlevel_get()
if runlevel is None:
log.error("Cannot detect runlevel")
return
for service in self._services.items():
is_enabled = self._init_handler.is_enabled(service[0], runlevel)
is_running = self._init_handler.is_running(service[0])
instance._services_original[service[0]] = Service(is_running, is_enabled, service[1].cfg_file, runlevel)
if service[1].cfg_file:
self._init_handler.cfg_install(service[0], service[1].cfg_file)
self._process_service(service[0], service[1].start, service[1].enable, runlevel)
def _instance_verify_static(self, instance, ignore_missing, devices):
runlevel = self._init_handler.runlevel_get()
if runlevel is None:
log.error(consts.STR_VERIFY_PROFILE_FAIL % "cannot detect runlevel")
return False
ret = True
for service in self._services.items():
ret_cfg_verify = self._init_handler.cfg_verify(service[0], service[1].cfg_file)
if ret_cfg_verify:
log.info(consts.STR_VERIFY_PROFILE_OK % "service '%s' configuration '%s' matches" % (service[0], service[1].cfg_file))
elif ret_cfg_verify is not None:
log.error(consts.STR_VERIFY_PROFILE_FAIL % "service '%s' configuration '%s' differs" % (service[0], service[1].cfg_file))
ret = False
else:
log.info(consts.STR_VERIFY_PROFILE_VALUE_MISSING % "service '%s' configuration '%s'" % (service[0], service[1].cfg_file))
is_enabled = self._init_handler.is_enabled(service[0], runlevel)
is_running = self._init_handler.is_running(service[0])
if self._verify_value("%s running" % service[0], service[1].start, is_running, ignore_missing) is False:
ret = False
if self._verify_value("%s enabled" % service[0], service[1].enable, is_enabled, ignore_missing) is False:
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
for name, value in list(instance._services_original.items()):
if value.cfg_file:
self._init_handler.cfg_uninstall(name, value.cfg_file)
self._process_service(name, value.start, value.enable, value.runlevel)
plugins/plugin_selinux.py 0000644 00000004420 15035135375 0011653 0 ustar 00 import os
import errno
from . import base
from .decorators import *
import tuned.logs
from tuned.plugins import exceptions
from tuned.utils.commands import commands
log = tuned.logs.get()
class SelinuxPlugin(base.Plugin):
"""
`selinux`::
Plug-in for tuning SELinux options.
+
SELinux decisions, such as allowing or denying access, are
cached. This cache is known as the Access Vector Cache (AVC). When
using these cached decisions, SELinux policy rules need to be checked
less, which increases performance. The [option]`avc_cache_threshold`
option allows adjusting the maximum number of AVC entries.
+
NOTE: Prior to changing the default value, evaluate the system
performance with care. Increasing the value could potentially
decrease the performance by making AVC slow.
+
.Increase the AVC cache threshold for hosts with containers.
====
----
[selinux]
avc_cache_threshold=8192
----
====
"""
@classmethod
def _get_selinux_path(self):
path = "/sys/fs/selinux"
if not os.path.exists(path):
path = "/selinux"
if not os.path.exists(path):
path = None
return path
def __init__(self, *args, **kwargs):
self._cmd = commands()
self._selinux_path = self._get_selinux_path()
if self._selinux_path is None:
raise exceptions.NotSupportedPluginException("SELinux is not enabled on your system or incompatible version is used.")
self._cache_threshold_path = os.path.join(self._selinux_path, "avc", "cache_threshold")
super(SelinuxPlugin, self).__init__(*args, **kwargs)
@classmethod
def _get_config_options(self):
return {
"avc_cache_threshold" : None,
}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
@command_set("avc_cache_threshold")
def _set_avc_cache_threshold(self, value, sim, remove):
if value is None:
return None
threshold = int(value)
if threshold >= 0:
if not sim:
self._cmd.write_to_file(self._cache_threshold_path, threshold, \
no_error = [errno.ENOENT] if remove else False)
return threshold
else:
return None
@command_get("avc_cache_threshold")
def _get_avc_cache_threshold(self):
value = self._cmd.read_file(self._cache_threshold_path)
if len(value) > 0:
return int(value)
return None
plugins/plugin_modules.py 0000644 00000011475 15035135375 0011644 0 ustar 00 import re
import os.path
from . import base
from .decorators import *
import tuned.logs
from subprocess import *
from tuned.utils.commands import commands
import tuned.consts as consts
log = tuned.logs.get()
class ModulesPlugin(base.Plugin):
"""
`modules`::
Plug-in for applying custom kernel modules options.
+
This plug-in can set parameters to kernel modules. It creates
`/etc/modprobe.d/tuned.conf` file. The syntax is
`_module_=_option1=value1 option2=value2..._` where `_module_` is
the module name and `_optionx=valuex_` are module options which may
or may not be present.
+
.Load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=nr_ndevs=2
----
====
Modules can also be forced to load/reload by using an additional
`+r` option prefix.
+
.(Re)load module `netrom` with module parameter `nr_ndevs=2`
====
----
[modules]
netrom=+r nr_ndevs=2
----
====
The `+r` switch will also cause *TuneD* to try and remove `netrom`
module (if loaded) and try and (re)insert it with the specified
parameters. The `+r` can be followed by an optional comma (`+r,`)
for better readability.
+
When using `+r` the module will be loaded immediately by the *TuneD*
daemon itself rather than waiting for the OS to load it with the
specified parameters.
"""
def __init__(self, *args, **kwargs):
super(ModulesPlugin, self).__init__(*args, **kwargs)
self._has_dynamic_options = True
self._cmd = commands()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
instance._modules = instance.options
def _instance_cleanup(self, instance):
pass
def _reload_modules(self, modules):
for module in modules:
retcode, out = self._cmd.execute(["modprobe", "-r", module])
if retcode < 0:
log.warn("'modprobe' command not found, cannot reload kernel modules, reboot is required")
return
elif retcode > 0:
log.debug("cannot remove kernel module '%s': %s" % (module, out.strip()))
retcode, out = self._cmd.execute(["modprobe", module])
if retcode != 0:
log.warn("cannot insert/reinsert module '%s', reboot is required: %s" % (module, out.strip()))
def _instance_apply_static(self, instance):
self._clear_modprobe_file()
s = ""
retcode = 0
skip_check = False
reload_list = []
for option, value in list(instance._modules.items()):
module = self._variables.expand(option)
v = self._variables.expand(value)
if not skip_check:
retcode, out = self._cmd.execute(["modinfo", module])
if retcode < 0:
skip_check = True
log.warn("'modinfo' command not found, not checking kernel modules")
elif retcode > 0:
log.error("kernel module '%s' not found, skipping it" % module)
if skip_check or retcode == 0:
if len(v) > 1 and v[0:2] == "+r":
v = re.sub(r"^\s*\+r\s*,?\s*", "", v)
reload_list.append(module)
if len(v) > 0:
s += "options " + module + " " + v + "\n"
else:
log.debug("module '%s' doesn't have any option specified, not writing it to modprobe.d" % module)
self._cmd.write_to_file(consts.MODULES_FILE, s)
l = len(reload_list)
if l > 0:
self._reload_modules(reload_list)
if len(instance._modules) != l:
log.info(consts.STR_HINT_REBOOT)
def _unquote_path(self, path):
return str(path).replace("/", "")
def _instance_verify_static(self, instance, ignore_missing, devices):
ret = True
# not all modules exports all their parameteters through sysfs, so hardcode check with ignore_missing
ignore_missing = True
r = re.compile(r"\s+")
for option, value in list(instance._modules.items()):
module = self._variables.expand(option)
v = self._variables.expand(value)
v = re.sub(r"^\s*\+r\s*,?\s*", "", v)
mpath = "/sys/module/%s" % module
if not os.path.exists(mpath):
ret = False
log.error(consts.STR_VERIFY_PROFILE_FAIL % "module '%s' is not loaded" % module)
else:
log.info(consts.STR_VERIFY_PROFILE_OK % "module '%s' is loaded" % module)
l = r.split(v)
for item in l:
arg = item.split("=")
if len(arg) != 2:
log.warn("unrecognized module option for module '%s': %s" % (module, item))
else:
if self._verify_value(arg[0], arg[1],
self._cmd.read_file(mpath + "/parameters/" + self._unquote_path(arg[0]), err_ret = None, no_error = True),
ignore_missing) == False:
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
if rollback == consts.ROLLBACK_FULL:
self._clear_modprobe_file()
def _clear_modprobe_file(self):
s = self._cmd.read_file(consts.MODULES_FILE, no_error = True)
l = s.split("\n")
i = j = 0
ll = len(l)
r = re.compile(r"^\s*#")
while i < ll:
if r.search(l[i]) is None:
j = i
i = ll
i += 1
s = "\n".join(l[0:j])
if len(s) > 0:
s += "\n"
self._cmd.write_to_file(consts.MODULES_FILE, s)
plugins/plugin_audio.py 0000644 00000006211 15035135375 0011265 0 ustar 00 from . import hotplug
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import os
import errno
import struct
import glob
log = tuned.logs.get()
cmd = commands()
class AudioPlugin(hotplug.Plugin):
"""
`audio`::
Sets audio cards power saving options. The plug-in sets the auto suspend
timeout for audio codecs to the value specified by the [option]`timeout`
option.
+
Currently, the `snd_hda_intel` and `snd_ac97_codec` codecs are
supported and the [option]`timeout` value is in seconds. To disable
auto suspend for these codecs, set the [option]`timeout` value
to `0`. To enforce the controller reset, set the option
[option]`reset_controller` to `true`. Note that power management
is supported per module. Hence, the kernel module names are used as
device names.
+
.Set the timeout value to 10s and enforce the controller reset
====
----
[audio]
timeout=10
reset_controller=true
----
====
"""
def _init_devices(self):
self._devices_supported = True
self._assigned_devices = set()
self._free_devices = set()
for device in self._hardware_inventory.get_devices("sound").match_sys_name("card*"):
module_name = self._device_module_name(device)
if module_name in ["snd_hda_intel", "snd_ac97_codec"]:
self._free_devices.add(module_name)
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
def _instance_cleanup(self, instance):
pass
def _device_module_name(self, device):
try:
return device.parent.driver
except:
return None
@classmethod
def _get_config_options(cls):
return {
"timeout": 0,
"reset_controller": False,
}
def _timeout_path(self, device):
return "/sys/module/%s/parameters/power_save" % device
def _reset_controller_path(self, device):
return "/sys/module/%s/parameters/power_save_controller" % device
@command_set("timeout", per_device = True)
def _set_timeout(self, value, device, sim, remove):
try:
timeout = int(value)
except ValueError:
log.error("timeout value '%s' is not integer" % value)
return None
if timeout >= 0:
sys_file = self._timeout_path(device)
if not sim:
cmd.write_to_file(sys_file, "%d" % timeout, \
no_error = [errno.ENOENT] if remove else False)
return timeout
else:
return None
@command_get("timeout")
def _get_timeout(self, device, ignore_missing=False):
sys_file = self._timeout_path(device)
value = cmd.read_file(sys_file, no_error=ignore_missing)
if len(value) > 0:
return value
return None
@command_set("reset_controller", per_device = True)
def _set_reset_controller(self, value, device, sim, remove):
v = cmd.get_bool(value)
sys_file = self._reset_controller_path(device)
if os.path.exists(sys_file):
if not sim:
cmd.write_to_file(sys_file, v, \
no_error = [errno.ENOENT] if remove else False)
return v
return None
@command_get("reset_controller")
def _get_reset_controller(self, device, ignore_missing=False):
sys_file = self._reset_controller_path(device)
if os.path.exists(sys_file):
value = cmd.read_file(sys_file)
if len(value) > 0:
return cmd.get_bool(value)
return None
plugins/decorators.py 0000644 00000001727 15035135375 0010762 0 ustar 00 __all__ = ["command_set", "command_get", "command_custom"]
# @command_set("scheduler", per_device=True)
# def set_scheduler(self, value, device):
# set_new_scheduler
#
# @command_get("scheduler")
# def get_scheduler(self, device):
# return current_scheduler
#
# @command_set("foo")
# def set_foo(self, value):
# set_new_foo
#
# @command_get("foo")
# def get_foo(self):
# return current_foo
#
def command_set(name, per_device=False, priority=0):
def wrapper(method):
method._command = {
"set": True,
"name": name,
"per_device": per_device,
"priority": priority,
}
return method
return wrapper
def command_get(name):
def wrapper(method):
method._command = {
"get": True,
"name": name,
}
return method
return wrapper
def command_custom(name, per_device=False, priority=0):
def wrapper(method):
method._command = {
"custom": True,
"name": name,
"per_device": per_device,
"priority": priority,
}
return method
return wrapper
plugins/plugin_rtentsk.py 0000644 00000002125 15035135375 0011656 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
from tuned.utils.commands import commands
import glob
import socket
import time
log = tuned.logs.get()
class RTENTSKPlugin(base.Plugin):
"""
`rtentsk`::
Plugin for avoiding interruptions due to static key IPIs due
to opening socket with timestamping enabled (by opening a
socket ourselves the static key is kept enabled).
"""
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
# SO_TIMESTAMP nor SOF_TIMESTAMPING_OPT_TX_SWHW is defined by
# the socket class
SO_TIMESTAMP = 29 # see include/uapi/asm-generic/socket.h
#define SO_TIMESTAMP 0x4012 # parisc!
SOF_TIMESTAMPING_OPT_TX_SWHW = (1<<14) # see include/uapi/linux/net_tstamp.h
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
s.setsockopt(socket.SOL_SOCKET, SO_TIMESTAMP, SOF_TIMESTAMPING_OPT_TX_SWHW)
self.rtentsk_socket = s
log.info("opened SOF_TIMESTAMPING_OPT_TX_SWHW socket")
def _instance_cleanup(self, instance):
s = self.rtentsk_socket
s.close()
plugins/plugin_systemd.py 0000644 00000012464 15035135375 0011663 0 ustar 00 from . import base
from .decorators import *
import tuned.logs
from . import exceptions
from tuned.utils.commands import commands
import tuned.consts as consts
import os
import re
log = tuned.logs.get()
class SystemdPlugin(base.Plugin):
"""
`systemd`::
Plug-in for tuning systemd options.
+
The [option]`cpu_affinity` option allows setting CPUAffinity in
`/etc/systemd/system.conf`. This configures the CPU affinity for the
service manager as well as the default CPU affinity for all forked
off processes. The option takes a comma-separated list of CPUs with
optional CPU ranges specified by the minus sign (`-`).
+
.Set the CPUAffinity for `systemd` to `0 1 2 3`
====
----
[systemd]
cpu_affinity=0-3
----
====
+
NOTE: These tunings are unloaded only on profile change followed by a reboot.
"""
def __init__(self, *args, **kwargs):
if not os.path.isfile(consts.SYSTEMD_SYSTEM_CONF_FILE):
raise exceptions.NotSupportedPluginException("Required systemd '%s' configuration file not found, disabling plugin." % consts.SYSTEMD_SYSTEM_CONF_FILE)
super(SystemdPlugin, self).__init__(*args, **kwargs)
self._cmd = commands()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
def _instance_cleanup(self, instance):
pass
@classmethod
def _get_config_options(cls):
return {
"cpu_affinity": None,
}
def _get_keyval(self, conf, key):
if conf is not None:
mo = re.search(r"^\s*" + key + r"\s*=\s*(.*)$", conf, flags = re.MULTILINE)
if mo is not None and mo.lastindex == 1:
return mo.group(1)
return None
# add/replace key with the value
def _add_keyval(self, conf, key, val):
(conf_new, nsubs) = re.subn(r"^(\s*" + key + r"\s*=).*$", r"\g<1>" + str(val), conf, flags = re.MULTILINE)
if nsubs < 1:
try:
if conf[-1] != "\n":
conf += "\n"
except IndexError:
pass
conf += key + "=" + str(val) + "\n"
return conf
return conf_new
def _del_key(self, conf, key):
return re.sub(r"^\s*" + key + r"\s*=.*\n", "", conf, flags = re.MULTILINE)
def _read_systemd_system_conf(self):
systemd_system_conf = self._cmd.read_file(consts.SYSTEMD_SYSTEM_CONF_FILE, err_ret = None)
if systemd_system_conf is None:
log.error("error reading systemd configuration file")
return None
return systemd_system_conf
def _write_systemd_system_conf(self, conf):
tmpfile = consts.SYSTEMD_SYSTEM_CONF_FILE + consts.TMP_FILE_SUFFIX
if not self._cmd.write_to_file(tmpfile, conf):
log.error("error writing systemd configuration file")
self._cmd.unlink(tmpfile, no_error = True)
return False
# Atomic replace, this doesn't work on Windows (AFAIK there is no way on Windows how to do this
# atomically), but it's unlikely this code will run there
if not self._cmd.rename(tmpfile, consts.SYSTEMD_SYSTEM_CONF_FILE):
log.error("error replacing systemd configuration file '%s'" % consts.SYSTEMD_SYSTEM_CONF_FILE)
self._cmd.unlink(tmpfile, no_error = True)
return False
return True
def _get_storage_filename(self):
return os.path.join(consts.PERSISTENT_STORAGE_DIR, self.name)
def _remove_systemd_tuning(self):
conf = self._read_systemd_system_conf()
if (conf is not None):
fname = self._get_storage_filename()
cpu_affinity_saved = self._cmd.read_file(fname, err_ret = None, no_error = True)
self._cmd.unlink(fname)
if cpu_affinity_saved is None:
conf = self._del_key(conf, consts.SYSTEMD_CPUAFFINITY_VAR)
else:
conf = self._add_keyval(conf, consts.SYSTEMD_CPUAFFINITY_VAR, cpu_affinity_saved)
self._write_systemd_system_conf(conf)
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
if rollback == consts.ROLLBACK_FULL:
log.info("removing '%s' systemd tuning previously added by TuneD" % consts.SYSTEMD_CPUAFFINITY_VAR)
self._remove_systemd_tuning()
log.console("you may need to manualy run 'dracut -f' to update the systemd configuration in initrd image")
# convert cpulist from systemd syntax to TuneD syntax and unpack it
def _cpulist_convert_unpack(self, cpulist):
if cpulist is None:
return ""
return " ".join(str(v) for v in self._cmd.cpulist_unpack(re.sub(r"\s+", r",", re.sub(r",\s+", r",", cpulist))))
@command_custom("cpu_affinity", per_device = False)
def _cmdline(self, enabling, value, verify, ignore_missing):
conf_affinity = None
conf_affinity_unpacked = None
v = self._cmd.unescape(self._variables.expand(self._cmd.unquote(value)))
v_unpacked = " ".join(str(v) for v in self._cmd.cpulist_unpack(v))
conf = self._read_systemd_system_conf()
if conf is not None:
conf_affinity = self._get_keyval(conf, consts.SYSTEMD_CPUAFFINITY_VAR)
conf_affinity_unpacked = self._cpulist_convert_unpack(conf_affinity)
if verify:
return self._verify_value("cpu_affinity", v_unpacked, conf_affinity_unpacked, ignore_missing)
if enabling:
fname = self._get_storage_filename()
cpu_affinity_saved = self._cmd.read_file(fname, err_ret = None, no_error = True)
if conf_affinity is not None and cpu_affinity_saved is None and v_unpacked != conf_affinity_unpacked:
self._cmd.write_to_file(fname, conf_affinity, makedir = True)
log.info("setting '%s' to '%s' in the '%s'" % (consts.SYSTEMD_CPUAFFINITY_VAR, v_unpacked, consts.SYSTEMD_SYSTEM_CONF_FILE))
self._write_systemd_system_conf(self._add_keyval(conf, consts.SYSTEMD_CPUAFFINITY_VAR, v_unpacked))
plugins/plugin_net.py 0000644 00000055324 15035135375 0010763 0 ustar 00 import errno
from . import hotplug
from .decorators import *
import tuned.logs
from tuned.utils.nettool import ethcard
from tuned.utils.commands import commands
import os
import re
log = tuned.logs.get()
WOL_VALUES = "pumbagsd"
class NetTuningPlugin(hotplug.Plugin):
"""
`net`::
Configures network driver, hardware and Netfilter settings.
Dynamic change of the interface speed according to the interface
utilization is also supported. The dynamic tuning is controlled by
the [option]`dynamic` and the global [option]`dynamic_tuning`
option in `tuned-main.conf`.
+
The [option]`wake_on_lan` option sets wake-on-lan to the specified
value as when using the `ethtool` utility.
+
.Set Wake-on-LAN for device eth0 on MagicPacket(TM)
====
----
[net]
devices=eth0
wake_on_lan=g
----
====
+
The [option]`coalesce` option allows changing coalescing settings
for the specified network devices. The syntax is:
+
[subs="+quotes,+macros"]
----
coalesce=__param1__ __value1__ __param2__ __value2__ ... __paramN__ __valueN__
----
Note that not all the coalescing parameters are supported by all
network cards. For the list of coalescing parameters of your network
device, use `ethtool -c device`.
+
.Setting coalescing parameters rx/tx-usecs for all network devices
====
----
[net]
coalesce=rx-usecs 3 tx-usecs 16
----
====
+
The [option]`features` option allows changing
the offload parameters and other features for the specified
network devices. To query the features of your network device,
use `ethtool -k device`. The syntax of the option is the same as
the [option]`coalesce` option.
+
.Turn off TX checksumming, generic segmentation and receive offload
====
----
[net]
features=tx off gso off gro off
----
====
The [option]`pause` option allows changing the pause parameters for
the specified network devices. To query the pause parameters of your
network device, use `ethtool -a device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Disable autonegotiation
====
----
[net]
pause=autoneg off
----
====
+
The [option]`ring` option allows changing the rx/tx ring parameters
for the specified network devices. To query the ring parameters of your
network device, use `ethtool -g device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Change the number of ring entries for the Rx/Tx rings to 1024/512 respectively
=====
-----
[net]
ring=rx 1024 tx 512
-----
=====
+
The [option]`channels` option allows changing the numbers of channels
for the specified network device. A channel is an IRQ and the set
of queues that can trigger that IRQ. To query the channels parameters of your
network device, use `ethtool -l device`. The syntax of the option
is the same as the [option]`coalesce` option.
+
.Set the number of multi-purpose channels to 16
=====
-----
[net]
channels=combined 16
-----
=====
+
A network device either supports rx/tx or combined queue
mode. The [option]`channels` option automatically adjusts the
parameters based on the mode supported by the device as long as a
valid configuration is requested.
+
The [option]`nf_conntrack_hashsize` option sets the size of the hash
table which stores lists of conntrack entries by writing to
`/sys/module/nf_conntrack/parameters/hashsize`.
+
.Adjust the size of the conntrack hash table
====
----
[net]
nf_conntrack_hashsize=131072
----
====
+
The [option]`txqueuelen` option allows changing txqueuelen (the length
of the transmit queue). It uses `ip` utility that is in package iproute
recommended for TuneD, so the package needs to be installed for its correct
functionality. To query the txqueuelen parameters of your network device
use `ip link show` and the current value is shown after the qlen column.
+
.Adjust the length of the transmit queue
====
----
[net]
txqueuelen=5000
----
====
+
The [option]`mtu` option allows changing MTU (Maximum Transmission Unit).
It uses `ip` utility that is in package iproute recommended for TuneD, so
the package needs to be installed for its correct functionality. To query
the MTU parameters of your network device use `ip link show` and the
current value is shown after the MTU column.
+
.Adjust the size of the MTU
====
----
[net]
mtu=9000
----
====
"""
def __init__(self, *args, **kwargs):
super(NetTuningPlugin, self).__init__(*args, **kwargs)
self._load_smallest = 0.05
self._level_steps = 6
self._cmd = commands()
self._re_ip_link_show = {}
self._use_ip = True
def _init_devices(self):
self._devices_supported = True
self._free_devices = set()
self._assigned_devices = set()
re_not_virtual = re.compile('(?!.*/virtual/.*)')
for device in self._hardware_inventory.get_devices("net"):
if re_not_virtual.match(device.device_path):
self._free_devices.add(device.sys_name)
log.debug("devices: %s" % str(self._free_devices));
def _get_device_objects(self, devices):
return [self._hardware_inventory.get_device("net", x) for x in devices]
def _instance_init(self, instance):
instance._has_static_tuning = True
if self._option_bool(instance.options["dynamic"]):
instance._has_dynamic_tuning = True
instance._load_monitor = self._monitors_repository.create("net", instance.assigned_devices)
instance._idle = {}
instance._stats = {}
else:
instance._has_dynamic_tuning = False
instance._load_monitor = None
instance._idle = None
instance._stats = None
def _instance_cleanup(self, instance):
if instance._load_monitor is not None:
self._monitors_repository.delete(instance._load_monitor)
instance._load_monitor = None
def _instance_apply_dynamic(self, instance, device):
self._instance_update_dynamic(instance, device)
def _instance_update_dynamic(self, instance, device):
load = [int(value) for value in instance._load_monitor.get_device_load(device)]
if load is None:
return
if not device in instance._stats:
self._init_stats_and_idle(instance, device)
self._update_stats(instance, device, load)
self._update_idle(instance, device)
stats = instance._stats[device]
idle = instance._idle[device]
if idle["level"] == 0 and idle["read"] >= self._level_steps and idle["write"] >= self._level_steps:
idle["level"] = 1
log.info("%s: setting 100Mbps" % device)
ethcard(device).set_speed(100)
elif idle["level"] == 1 and (idle["read"] == 0 or idle["write"] == 0):
idle["level"] = 0
log.info("%s: setting max speed" % device)
ethcard(device).set_max_speed()
log.debug("%s load: read %0.2f, write %0.2f" % (device, stats["read"], stats["write"]))
log.debug("%s idle: read %d, write %d, level %d" % (device, idle["read"], idle["write"], idle["level"]))
@classmethod
def _get_config_options_coalesce(cls):
return {
"adaptive-rx": None,
"adaptive-tx": None,
"rx-usecs": None,
"rx-frames": None,
"rx-usecs-irq": None,
"rx-frames-irq": None,
"tx-usecs": None,
"tx-frames": None,
"tx-usecs-irq": None,
"tx-frames-irq": None,
"stats-block-usecs": None,
"pkt-rate-low": None,
"rx-usecs-low": None,
"rx-frames-low": None,
"tx-usecs-low": None,
"tx-frames-low": None,
"pkt-rate-high": None,
"rx-usecs-high": None,
"rx-frames-high": None,
"tx-usecs-high": None,
"tx-frames-high": None,
"sample-interval": None
}
@classmethod
def _get_config_options_pause(cls):
return { "autoneg": None,
"rx": None,
"tx": None }
@classmethod
def _get_config_options_ring(cls):
return { "rx": None,
"rx-mini": None,
"rx-jumbo": None,
"tx": None }
@classmethod
def _get_config_options_channels(cls):
return { "rx": None,
"tx": None,
"other": None,
"combined": None }
@classmethod
def _get_config_options(cls):
return {
"dynamic": True,
"wake_on_lan": None,
"nf_conntrack_hashsize": None,
"features": None,
"coalesce": None,
"pause": None,
"ring": None,
"channels": None,
"txqueuelen": None,
"mtu": None,
}
def _init_stats_and_idle(self, instance, device):
max_speed = self._calc_speed(ethcard(device).get_max_speed())
instance._stats[device] = { "new": 4 * [0], "max": 2 * [max_speed, 1] }
instance._idle[device] = { "level": 0, "read": 0, "write": 0 }
def _update_stats(self, instance, device, new_load):
# put new to old
instance._stats[device]["old"] = old_load = instance._stats[device]["new"]
instance._stats[device]["new"] = new_load
# load difference
diff = [new_old[0] - new_old[1] for new_old in zip(new_load, old_load)]
instance._stats[device]["diff"] = diff
# adapt maximum expected load if the difference is higer
old_max_load = instance._stats[device]["max"]
max_load = [max(pair) for pair in zip(old_max_load, diff)]
instance._stats[device]["max"] = max_load
# read/write ratio
instance._stats[device]["read"] = float(diff[0]) / float(max_load[0])
instance._stats[device]["write"] = float(diff[2]) / float(max_load[2])
def _update_idle(self, instance, device):
# increase counter if there is no load, otherwise reset the counter
for operation in ["read", "write"]:
if instance._stats[device][operation] < self._load_smallest:
instance._idle[device][operation] += 1
else:
instance._idle[device][operation] = 0
def _instance_unapply_dynamic(self, instance, device):
if device in instance._idle and instance._idle[device]["level"] > 0:
instance._idle[device]["level"] = 0
log.info("%s: setting max speed" % device)
ethcard(device).set_max_speed()
def _calc_speed(self, speed):
# 0.6 is just a magical constant (empirical value): Typical workload on netcard won't exceed
# that and if it does, then the code is smart enough to adapt it.
# 1024 * 1024 as for MB -> B
# speed / 8 Mb -> MB
return (int) (0.6 * 1024 * 1024 * speed / 8)
# parse features/coalesce config parameters (those defined in profile configuration)
# context is for error message
def _parse_config_parameters(self, value, context):
# expand config variables
value = self._variables.expand(value)
# split supporting various dellimeters
v = str(re.sub(r"(:\s*)|(\s+)|(\s*;\s*)|(\s*,\s*)", " ", value)).split()
lv = len(v)
if lv % 2 != 0:
log.error("invalid %s parameter: '%s'" % (context, str(value)))
return None
if lv == 0:
return dict()
# convert flat list to dict
return dict(list(zip(v[::2], v[1::2])))
# parse features/coalesce device parameters (those returned by ethtool)
def _parse_device_parameters(self, value):
# substitute "Adaptive RX: val1 TX: val2" to 'adaptive-rx: val1' and
# 'adaptive-tx: val2' and workaround for ethtool inconsistencies
# (rhbz#1225375)
value = self._cmd.multiple_re_replace({
"Adaptive RX:": "adaptive-rx:",
"\\s+TX:": "\nadaptive-tx:",
"rx-frame-low:": "rx-frames-low:",
"rx-frame-high:": "rx-frames-high:",
"tx-frame-low:": "tx-frames-low:",
"tx-frame-high:": "tx-frames-high:",
"large-receive-offload:": "lro:",
"rx-checksumming:": "rx:",
"tx-checksumming:": "tx:",
"scatter-gather:": "sg:",
"tcp-segmentation-offload:": "tso:",
"udp-fragmentation-offload:": "ufo:",
"generic-segmentation-offload:": "gso:",
"generic-receive-offload:": "gro:",
"rx-vlan-offload:": "rxvlan:",
"tx-vlan-offload:": "txvlan:",
"ntuple-filters:": "ntuple:",
"receive-hashing:": "rxhash:",
}, value)
# remove empty lines, remove fixed parameters (those with "[fixed]")
vl = [v for v in value.split('\n') if len(str(v)) > 0 and not re.search(r"\[fixed\]$", str(v))]
if len(vl) < 2:
return None
# skip first line (device name), split to key/value,
# remove pairs which are not key/value
return dict([u for u in [re.split(r":\s*", str(v)) for v in vl[1:]] if len(u) == 2])
@classmethod
def _nf_conntrack_hashsize_path(self):
return "/sys/module/nf_conntrack/parameters/hashsize"
@command_set("wake_on_lan", per_device=True)
def _set_wake_on_lan(self, value, device, sim, remove):
if value is None:
return None
# see man ethtool for possible wol values, 0 added as an alias for 'd'
value = re.sub(r"0", "d", str(value));
if not re.match(r"^[" + WOL_VALUES + r"]+$", value):
log.warn("Incorrect 'wake_on_lan' value.")
return None
if not sim:
self._cmd.execute(["ethtool", "-s", device, "wol", value])
return value
@command_get("wake_on_lan")
def _get_wake_on_lan(self, device, ignore_missing=False):
value = None
try:
m = re.match(r".*Wake-on:\s*([" + WOL_VALUES + "]+).*", self._cmd.execute(["ethtool", device])[1], re.S)
if m:
value = m.group(1)
except IOError:
pass
return value
@command_set("nf_conntrack_hashsize")
def _set_nf_conntrack_hashsize(self, value, sim, remove):
if value is None:
return None
hashsize = int(value)
if hashsize >= 0:
if not sim:
self._cmd.write_to_file(self._nf_conntrack_hashsize_path(), hashsize, \
no_error = [errno.ENOENT] if remove else False)
return hashsize
else:
return None
@command_get("nf_conntrack_hashsize")
def _get_nf_conntrack_hashsize(self):
value = self._cmd.read_file(self._nf_conntrack_hashsize_path())
if len(value) > 0:
return int(value)
return None
def _call_ip_link(self, args=[]):
if not self._use_ip:
return None
args = ["ip", "link"] + args
(rc, out, err_msg) = self._cmd.execute(args, no_errors=[errno.ENOENT], return_err=True)
if rc == -errno.ENOENT:
log.warn("ip command not found, ignoring for other devices")
self._use_ip = False
return None
elif rc:
log.info("Problem calling ip command")
log.debug("(rc: %s, msg: '%s')" % (rc, err_msg))
return None
return out
def _ip_link_show(self, device=None):
args = ["show"]
if device:
args.append(device)
return self._call_ip_link(args)
@command_set("txqueuelen", per_device=True)
def _set_txqueuelen(self, value, device, sim, remove):
if value is None:
return None
try:
int(value)
except ValueError:
log.warn("txqueuelen value '%s' is not integer" % value)
return None
if not sim:
# there is inconsistency in "ip", where "txqueuelen" is set as it, but is shown as "qlen"
res = self._call_ip_link(["set", "dev", device, "txqueuelen", value])
if res is None:
log.warn("Cannot set txqueuelen for device '%s'" % device)
return None
return value
def _get_re_ip_link_show(self, arg):
"""
Return regex for int arg value from "ip link show" command
"""
if arg not in self._re_ip_link_show:
self._re_ip_link_show[arg] = re.compile(r".*\s+%s\s+(\d+)" % arg)
return self._re_ip_link_show[arg]
@command_get("txqueuelen")
def _get_txqueuelen(self, device, ignore_missing=False):
out = self._ip_link_show(device)
if out is None:
if not ignore_missing:
log.info("Cannot get 'ip link show' result for txqueuelen value for device '%s'" % device)
return None
res = self._get_re_ip_link_show("qlen").search(out)
if res is None:
# We can theoretically get device without qlen (http://linux-ip.net/gl/ip-cref/ip-cref-node17.html)
if not ignore_missing:
log.info("Cannot get txqueuelen value from 'ip link show' result for device '%s'" % device)
return None
return res.group(1)
@command_set("mtu", per_device=True)
def _set_mtu(self, value, device, sim, remove):
if value is None:
return None
try:
int(value)
except ValueError:
log.warn("mtu value '%s' is not integer" % value)
return None
if not sim:
res = self._call_ip_link(["set", "dev", device, "mtu", value])
if res is None:
log.warn("Cannot set mtu for device '%s'" % device)
return None
return value
@command_get("mtu")
def _get_mtu(self, device, ignore_missing=False):
out = self._ip_link_show(device)
if out is None:
if not ignore_missing:
log.info("Cannot get 'ip link show' result for mtu value for device '%s'" % device)
return None
res = self._get_re_ip_link_show("mtu").search(out)
if res is None:
# mtu value should be always present, but it's better to have a test
if not ignore_missing:
log.info("Cannot get mtu value from 'ip link show' result for device '%s'" % device)
return None
return res.group(1)
# d is dict: {parameter: value}
def _check_parameters(self, context, d):
if context == "features":
return True
params = set(d.keys())
supported_getter = { "coalesce": self._get_config_options_coalesce, \
"pause": self._get_config_options_pause, \
"ring": self._get_config_options_ring, \
"channels": self._get_config_options_channels }
supported = set(supported_getter[context]().keys())
if not params.issubset(supported):
log.error("unknown %s parameter(s): %s" % (context, str(params - supported)))
return False
return True
# parse output of ethtool -a
def _parse_pause_parameters(self, s):
s = self._cmd.multiple_re_replace(\
{"Autonegotiate": "autoneg",
"RX": "rx",
"TX": "tx"}, s)
l = s.split("\n")[1:]
l = [x for x in l if x != '' and not re.search(r"\[fixed\]", x)]
return dict([x for x in [re.split(r":\s*", x) for x in l] if len(x) == 2])
# parse output of ethtool -g
def _parse_ring_parameters(self, s):
a = re.split(r"^Current hardware settings:$", s, flags=re.MULTILINE)
s = a[1]
s = self._cmd.multiple_re_replace(\
{"RX": "rx",
"RX Mini": "rx-mini",
"RX Jumbo": "rx-jumbo",
"TX": "tx"}, s)
l = s.split("\n")
l = [x for x in l if x != '']
l = [x for x in [re.split(r":\s*", x) for x in l] if len(x) == 2]
return dict(l)
# parse output of ethtool -l
def _parse_channels_parameters(self, s):
a = re.split(r"^Current hardware settings:$", s, flags=re.MULTILINE)
s = a[1]
s = self._cmd.multiple_re_replace(\
{"RX": "rx",
"TX": "tx",
"Other": "other",
"Combined": "combined"}, s)
l = s.split("\n")
l = [x for x in l if x != '']
l = [x for x in [re.split(r":\s*", x) for x in l] if len(x) == 2]
return dict(l)
def _replace_channels_parameters(self, context, params_list, dev_params):
mod_params_list = []
if "combined" in params_list:
mod_params_list.extend(["rx", params_list[1], "tx", params_list[1]])
else:
cnt = str(max(int(params_list[1]), int(params_list[3])))
mod_params_list.extend(["combined", cnt])
return dict(list(zip(mod_params_list[::2], mod_params_list[1::2])))
def _check_device_support(self, context, parameters, device, dev_params):
"""Filter unsupported parameters and log warnings about it
Positional parameters:
context -- context of change
parameters -- parameters to change
device -- name of device on which should be parameters set
dev_params -- dictionary of currently known parameters of device
"""
supported_parameters = set(dev_params.keys())
parameters_to_change = set(parameters.keys())
# if parameters_to_change contains unsupported parameter(s) then remove
# it/them
unsupported_parameters = (parameters_to_change
- supported_parameters)
for param in unsupported_parameters:
log.warning("%s parameter %s is not supported by device %s" % (
context,
param,
device,
))
parameters.pop(param, None)
def _get_device_parameters(self, context, device):
context2opt = { "coalesce": "-c", "features": "-k", "pause": "-a", "ring": "-g", \
"channels": "-l"}
opt = context2opt[context]
ret, value = self._cmd.execute(["ethtool", opt, device])
if ret != 0 or len(value) == 0:
return None
context2parser = { "coalesce": self._parse_device_parameters, \
"features": self._parse_device_parameters, \
"pause": self._parse_pause_parameters, \
"ring": self._parse_ring_parameters, \
"channels": self._parse_channels_parameters }
parser = context2parser[context]
d = parser(value)
if context == "coalesce" and not self._check_parameters(context, d):
return None
return d
def _set_device_parameters(self, context, value, device, sim,
dev_params = None):
if value is None or len(value) == 0:
return None
d = self._parse_config_parameters(value, context)
if d is None or not self._check_parameters(context, d):
return {}
# check if device supports parameters and filter out unsupported ones
if dev_params:
self._check_device_support(context, d, device, dev_params)
# replace the channel parameters based on the device support
if context == "channels" and str(dev_params[next(iter(d))]) in ["n/a", "0"]:
d = self._replace_channels_parameters(context, self._cmd.dict2list(d), dev_params)
if not sim and len(d) != 0:
log.debug("setting %s: %s" % (context, str(d)))
context2opt = { "coalesce": "-C", "features": "-K", "pause": "-A", "ring": "-G", \
"channels": "-L"}
opt = context2opt[context]
# ignore ethtool return code 80, it means parameter is already set
self._cmd.execute(["ethtool", opt, device] + self._cmd.dict2list(d), no_errors = [80])
return d
def _custom_parameters(self, context, start, value, device, verify):
storage_key = self._storage_key(
command_name = context,
device_name = device)
if start:
params_current = self._get_device_parameters(context,
device)
if params_current is None or len(params_current) == 0:
return False
params_set = self._set_device_parameters(context,
value, device, verify,
dev_params = params_current)
# if none of parameters passed checks then the command completely
# failed
if params_set is None or len(params_set) == 0:
return False
relevant_params_current = [(param, value) for param, value
in params_current.items()
if param in params_set]
relevant_params_current = dict(relevant_params_current)
if verify:
res = (self._cmd.dict2list(params_set)
== self._cmd.dict2list(relevant_params_current))
self._log_verification_result(context, res,
params_set,
relevant_params_current,
device = device)
return res
# saved are only those parameters which passed checks
self._storage.set(storage_key, " ".join(
self._cmd.dict2list(relevant_params_current)))
else:
original_value = self._storage.get(storage_key)
# in storage are only those parameters which were already tested
# so skip check for supported parameters
self._set_device_parameters(context, original_value, device, False)
return None
@command_custom("features", per_device = True)
def _features(self, start, value, device, verify, ignore_missing):
return self._custom_parameters("features", start, value, device, verify)
@command_custom("coalesce", per_device = True)
def _coalesce(self, start, value, device, verify, ignore_missing):
return self._custom_parameters("coalesce", start, value, device, verify)
@command_custom("pause", per_device = True)
def _pause(self, start, value, device, verify, ignore_missing):
return self._custom_parameters("pause", start, value, device, verify)
@command_custom("ring", per_device = True)
def _ring(self, start, value, device, verify, ignore_missing):
return self._custom_parameters("ring", start, value, device, verify)
@command_custom("channels", per_device = True)
def _channels(self, start, value, device, verify, ignore_missing):
return self._custom_parameters("channels", start, value, device, verify)
plugins/base.py 0000644 00000053621 15035135375 0007527 0 ustar 00 import re
import tuned.consts as consts
import tuned.profiles.variables
import tuned.logs
import collections
from tuned.utils.commands import commands
import os
from subprocess import Popen, PIPE
log = tuned.logs.get()
class Plugin(object):
"""
Base class for all plugins.
Plugins change various system settings in order to get desired performance or power
saving. Plugins use Monitor objects to get information from the running system.
Intentionally a lot of logic is included in the plugin to increase plugin flexibility.
"""
def __init__(self, monitors_repository, storage_factory, hardware_inventory, device_matcher, device_matcher_udev, instance_factory, global_cfg, variables):
"""Plugin constructor."""
self._storage = storage_factory.create(self.__class__.__name__)
self._monitors_repository = monitors_repository
self._hardware_inventory = hardware_inventory
self._device_matcher = device_matcher
self._device_matcher_udev = device_matcher_udev
self._instance_factory = instance_factory
self._instances = collections.OrderedDict()
self._init_commands()
self._global_cfg = global_cfg
self._variables = variables
self._has_dynamic_options = False
self._devices_inited = False
self._options_used_by_dynamic = self._get_config_options_used_by_dynamic()
self._cmd = commands()
def cleanup(self):
self.destroy_instances()
def init_devices(self):
if not self._devices_inited:
self._init_devices()
self._devices_inited = True
@property
def name(self):
return self.__class__.__module__.split(".")[-1].split("_", 1)[1]
#
# Plugin configuration manipulation and helpers.
#
@classmethod
def _get_config_options(self):
"""Default configuration options for the plugin."""
return {}
@classmethod
def get_config_options_hints(cls):
"""Explanation of each config option function"""
return {}
@classmethod
def _get_config_options_used_by_dynamic(self):
"""List of config options used by dynamic tuning. Their previous values will be automatically saved and restored."""
return []
def _get_effective_options(self, options):
"""Merge provided options with plugin default options."""
# TODO: _has_dynamic_options is a hack
effective = self._get_config_options().copy()
for key in options:
if key in effective or self._has_dynamic_options:
effective[key] = options[key]
else:
log.warn("Unknown option '%s' for plugin '%s'." % (key, self.__class__.__name__))
return effective
def _option_bool(self, value):
if type(value) is bool:
return value
value = str(value).lower()
return value == "true" or value == "1"
#
# Interface for manipulation with instances of the plugin.
#
def create_instance(self, name, devices_expression, devices_udev_regex, script_pre, script_post, options):
"""Create new instance of the plugin and seize the devices."""
if name in self._instances:
raise Exception("Plugin instance with name '%s' already exists." % name)
effective_options = self._get_effective_options(options)
instance = self._instance_factory.create(self, name, devices_expression, devices_udev_regex, \
script_pre, script_post, effective_options)
self._instances[name] = instance
return instance
def destroy_instance(self, instance):
"""Destroy existing instance."""
if instance._plugin != self:
raise Exception("Plugin instance '%s' does not belong to this plugin '%s'." % (instance, self))
if instance.name not in self._instances:
raise Exception("Plugin instance '%s' was already destroyed." % instance)
instance = self._instances[instance.name]
self._destroy_instance(instance)
del self._instances[instance.name]
def initialize_instance(self, instance):
"""Initialize an instance."""
log.debug("initializing instance %s (%s)" % (instance.name, self.name))
self._instance_init(instance)
def destroy_instances(self):
"""Destroy all instances."""
for instance in list(self._instances.values()):
log.debug("destroying instance %s (%s)" % (instance.name, self.name))
self._destroy_instance(instance)
self._instances.clear()
def _destroy_instance(self, instance):
self.release_devices(instance)
self._instance_cleanup(instance)
def _instance_init(self, instance):
raise NotImplementedError()
def _instance_cleanup(self, instance):
raise NotImplementedError()
#
# Devices handling
#
def _init_devices(self):
self._devices_supported = False
self._assigned_devices = set()
self._free_devices = set()
def _get_device_objects(self, devices):
"""Override this in a subclass to transform a list of device names (e.g. ['sda'])
to a list of pyudev.Device objects, if your plugin supports it"""
return None
def _get_matching_devices(self, instance, devices):
if instance.devices_udev_regex is None:
return set(self._device_matcher.match_list(instance.devices_expression, devices))
else:
udev_devices = self._get_device_objects(devices)
if udev_devices is None:
log.error("Plugin '%s' does not support the 'devices_udev_regex' option", self.name)
return set()
udev_devices = self._device_matcher_udev.match_list(instance.devices_udev_regex, udev_devices)
return set([x.sys_name for x in udev_devices])
def assign_free_devices(self, instance):
if not self._devices_supported:
return
log.debug("assigning devices to instance %s" % instance.name)
to_assign = self._get_matching_devices(instance, self._free_devices)
instance.active = len(to_assign) > 0
if not instance.active:
log.warn("instance %s: no matching devices available" % instance.name)
else:
name = instance.name
if instance.name != self.name:
name += " (%s)" % self.name
log.info("instance %s: assigning devices %s" % (name, ", ".join(to_assign)))
instance.assigned_devices.update(to_assign) # cannot use |=
self._assigned_devices |= to_assign
self._free_devices -= to_assign
def release_devices(self, instance):
if not self._devices_supported:
return
to_release = (instance.processed_devices \
| instance.assigned_devices) \
& self._assigned_devices
instance.active = False
instance.processed_devices.clear()
instance.assigned_devices.clear()
self._assigned_devices -= to_release
self._free_devices |= to_release
#
# Tuning activation and deactivation.
#
def _run_for_each_device(self, instance, callback, devices):
if not self._devices_supported:
devices = [None, ]
for device in devices:
callback(instance, device)
def _instance_pre_static(self, instance, enabling):
pass
def _instance_post_static(self, instance, enabling):
pass
def _call_device_script(self, instance, script, op, devices, rollback = consts.ROLLBACK_SOFT):
if script is None:
return None
if len(devices) == 0:
log.warn("Instance '%s': no device to call script '%s' for." % (instance.name, script))
return None
if not script.startswith("/"):
log.error("Relative paths cannot be used in script_pre or script_post. " \
+ "Use ${i:PROFILE_DIR}.")
return False
dir_name = os.path.dirname(script)
ret = True
for dev in devices:
environ = os.environ
environ.update(self._variables.get_env())
arguments = [op]
if rollback == consts.ROLLBACK_FULL:
arguments.append("full_rollback")
arguments.append(dev)
log.info("calling script '%s' with arguments '%s'" % (script, str(arguments)))
log.debug("using environment '%s'" % str(list(environ.items())))
try:
proc = Popen([script] + arguments, \
stdout=PIPE, stderr=PIPE, \
close_fds=True, env=environ, \
cwd = dir_name, universal_newlines = True)
out, err = proc.communicate()
if proc.returncode:
log.error("script '%s' error: %d, '%s'" % (script, proc.returncode, err[:-1]))
ret = False
except (OSError,IOError) as e:
log.error("script '%s' error: %s" % (script, e))
ret = False
return ret
def instance_apply_tuning(self, instance):
"""
Apply static and dynamic tuning if the plugin instance is active.
"""
if not instance.active:
return
if instance.has_static_tuning:
self._call_device_script(instance, instance.script_pre,
"apply", instance.assigned_devices)
self._instance_pre_static(instance, True)
self._instance_apply_static(instance)
self._instance_post_static(instance, True)
self._call_device_script(instance, instance.script_post,
"apply", instance.assigned_devices)
if instance.has_dynamic_tuning and self._global_cfg.get(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING):
self._run_for_each_device(instance, self._instance_apply_dynamic, instance.assigned_devices)
instance.processed_devices.update(instance.assigned_devices)
instance.assigned_devices.clear()
def instance_verify_tuning(self, instance, ignore_missing):
"""
Verify static tuning if the plugin instance is active.
"""
if not instance.active:
return None
if len(instance.assigned_devices) != 0:
log.error("BUG: Some devices have not been tuned: %s"
% ", ".join(instance.assigned_devices))
devices = instance.processed_devices.copy()
if instance.has_static_tuning:
if self._call_device_script(instance, instance.script_pre, "verify", devices) == False:
return False
if self._instance_verify_static(instance, ignore_missing, devices) == False:
return False
if self._call_device_script(instance, instance.script_post, "verify", devices) == False:
return False
return True
else:
return None
def instance_update_tuning(self, instance):
"""
Apply dynamic tuning if the plugin instance is active.
"""
if not instance.active:
return
if instance.has_dynamic_tuning and self._global_cfg.get(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING):
self._run_for_each_device(instance, self._instance_update_dynamic, instance.processed_devices.copy())
def instance_unapply_tuning(self, instance, rollback = consts.ROLLBACK_SOFT):
"""
Remove all tunings applied by the plugin instance.
"""
if rollback == consts.ROLLBACK_NONE:
return
if instance.has_dynamic_tuning and self._global_cfg.get(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING):
self._run_for_each_device(instance, self._instance_unapply_dynamic, instance.processed_devices)
if instance.has_static_tuning:
self._call_device_script(instance, instance.script_post,
"unapply", instance.processed_devices,
rollback = rollback)
self._instance_pre_static(instance, False)
self._instance_unapply_static(instance, rollback)
self._instance_post_static(instance, False)
self._call_device_script(instance, instance.script_pre, "unapply", instance.processed_devices, rollback = rollback)
def _instance_apply_static(self, instance):
self._execute_all_non_device_commands(instance)
self._execute_all_device_commands(instance, instance.assigned_devices)
def _instance_verify_static(self, instance, ignore_missing, devices):
ret = True
if self._verify_all_non_device_commands(instance, ignore_missing) == False:
ret = False
if self._verify_all_device_commands(instance, devices, ignore_missing) == False:
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
self._cleanup_all_device_commands(instance,
instance.processed_devices)
self._cleanup_all_non_device_commands(instance)
def _instance_apply_dynamic(self, instance, device):
for option in [opt for opt in self._options_used_by_dynamic if self._storage_get(instance, self._commands[opt], device) is None]:
self._check_and_save_value(instance, self._commands[option], device)
self._instance_update_dynamic(instance, device)
def _instance_unapply_dynamic(self, instance, device):
raise NotImplementedError()
def _instance_update_dynamic(self, instance, device):
raise NotImplementedError()
#
# Registration of commands for static plugins.
#
def _init_commands(self):
"""
Initialize commands.
"""
self._commands = collections.OrderedDict()
self._autoregister_commands()
self._check_commands()
def _autoregister_commands(self):
"""
Register all commands marked using @command_set, @command_get, and @command_custom decorators.
"""
for member_name in self.__class__.__dict__:
if member_name.startswith("__"):
continue
member = getattr(self, member_name)
if not hasattr(member, "_command"):
continue
command_name = member._command["name"]
info = self._commands.get(command_name, {"name": command_name})
if "set" in member._command:
info["custom"] = None
info["set"] = member
info["per_device"] = member._command["per_device"]
info["priority"] = member._command["priority"]
elif "get" in member._command:
info["get"] = member
elif "custom" in member._command:
info["custom"] = member
info["per_device"] = member._command["per_device"]
info["priority"] = member._command["priority"]
self._commands[command_name] = info
# sort commands by priority
self._commands = collections.OrderedDict(sorted(iter(self._commands.items()), key=lambda name_info: name_info[1]["priority"]))
def _check_commands(self):
"""
Check if all commands are defined correctly.
"""
for command_name, command in list(self._commands.items()):
# do not check custom commands
if command.get("custom", False):
continue
# automatic commands should have 'get' and 'set' functions
if "get" not in command or "set" not in command:
raise TypeError("Plugin command '%s' is not defined correctly" % command_name)
#
# Operations with persistent storage for status data.
#
def _storage_key(self, instance_name = None, command_name = None,
device_name = None):
class_name = type(self).__name__
instance_name = "" if instance_name is None else instance_name
command_name = "" if command_name is None else command_name
device_name = "" if device_name is None else device_name
return "%s/%s/%s/%s" % (class_name, instance_name,
command_name, device_name)
def _storage_set(self, instance, command, value, device_name=None):
key = self._storage_key(instance.name, command["name"], device_name)
self._storage.set(key, value)
def _storage_get(self, instance, command, device_name=None):
key = self._storage_key(instance.name, command["name"], device_name)
return self._storage.get(key)
def _storage_unset(self, instance, command, device_name=None):
key = self._storage_key(instance.name, command["name"], device_name)
return self._storage.unset(key)
#
# Command execution, verification, and cleanup.
#
def _execute_all_non_device_commands(self, instance):
for command in [command for command in list(self._commands.values()) if not command["per_device"]]:
new_value = self._variables.expand(instance.options.get(command["name"], None))
if new_value is not None:
self._execute_non_device_command(instance, command, new_value)
def _execute_all_device_commands(self, instance, devices):
for command in [command for command in list(self._commands.values()) if command["per_device"]]:
new_value = self._variables.expand(instance.options.get(command["name"], None))
if new_value is None:
continue
for device in devices:
self._execute_device_command(instance, command, device, new_value)
def _verify_all_non_device_commands(self, instance, ignore_missing):
ret = True
for command in [command for command in list(self._commands.values()) if not command["per_device"]]:
new_value = self._variables.expand(instance.options.get(command["name"], None))
if new_value is not None:
if self._verify_non_device_command(instance, command, new_value, ignore_missing) == False:
ret = False
return ret
def _verify_all_device_commands(self, instance, devices, ignore_missing):
ret = True
for command in [command for command in list(self._commands.values()) if command["per_device"]]:
new_value = instance.options.get(command["name"], None)
if new_value is None:
continue
for device in devices:
if self._verify_device_command(instance, command, device, new_value, ignore_missing) == False:
ret = False
return ret
def _process_assignment_modifiers(self, new_value, current_value):
if new_value is not None:
nws = str(new_value)
if len(nws) <= 1:
return new_value
op = nws[:1]
val = nws[1:]
if current_value is None:
return val if op in ["<", ">"] else new_value
try:
if op == ">":
if int(val) > int(current_value):
return val
else:
return None
elif op == "<":
if int(val) < int(current_value):
return val
else:
return None
except ValueError:
log.warn("cannot compare new value '%s' with current value '%s' by operator '%s', using '%s' directly as new value" % (val, current_value, op, new_value))
return new_value
def _get_current_value(self, command, device = None, ignore_missing=False):
if device is not None:
return command["get"](device, ignore_missing=ignore_missing)
else:
return command["get"]()
def _check_and_save_value(self, instance, command, device = None, new_value = None):
current_value = self._get_current_value(command, device)
new_value = self._process_assignment_modifiers(new_value, current_value)
if new_value is not None and current_value is not None:
self._storage_set(instance, command, current_value, device)
return new_value
def _execute_device_command(self, instance, command, device, new_value):
if command["custom"] is not None:
command["custom"](True, new_value, device, False, False)
else:
new_value = self._check_and_save_value(instance, command, device, new_value)
if new_value is not None:
command["set"](new_value, device, sim = False, remove = False)
def _execute_non_device_command(self, instance, command, new_value):
if command["custom"] is not None:
command["custom"](True, new_value, False, False)
else:
new_value = self._check_and_save_value(instance, command, None, new_value)
if new_value is not None:
command["set"](new_value, sim = False, remove = False)
def _norm_value(self, value):
v = self._cmd.unquote(str(value))
if re.match(r'\s*(0+,?)+([\da-fA-F]*,?)*\s*$', v):
return re.sub(r'^\s*(0+,?)+', "", v)
return v
def _verify_value(self, name, new_value, current_value, ignore_missing, device = None):
if new_value is None:
return None
ret = False
if current_value is None and ignore_missing:
if device is None:
log.info(consts.STR_VERIFY_PROFILE_VALUE_MISSING % name)
else:
log.info(consts.STR_VERIFY_PROFILE_DEVICE_VALUE_MISSING % (device, name))
return True
if current_value is not None:
current_value = self._norm_value(current_value)
new_value = self._norm_value(new_value)
try:
ret = int(new_value) == int(current_value)
except ValueError:
try:
ret = int(new_value, 16) == int(current_value, 16)
except ValueError:
ret = str(new_value) == str(current_value)
if not ret:
vals = str(new_value).split('|')
for val in vals:
val = val.strip()
ret = val == current_value
if ret:
break
self._log_verification_result(name, ret, new_value,
current_value, device = device)
return ret
def _log_verification_result(self, name, success, new_value,
current_value, device = None):
if success:
if device is None:
log.info(consts.STR_VERIFY_PROFILE_VALUE_OK % (name, str(current_value).strip()))
else:
log.info(consts.STR_VERIFY_PROFILE_DEVICE_VALUE_OK % (device, name, str(current_value).strip()))
return True
else:
if device is None:
log.error(consts.STR_VERIFY_PROFILE_VALUE_FAIL % (name, str(current_value).strip(), str(new_value).strip()))
else:
log.error(consts.STR_VERIFY_PROFILE_DEVICE_VALUE_FAIL % (device, name, str(current_value).strip(), str(new_value).strip()))
return False
def _verify_device_command(self, instance, command, device, new_value, ignore_missing):
if command["custom"] is not None:
return command["custom"](True, new_value, device, True, ignore_missing)
current_value = self._get_current_value(command, device, ignore_missing=ignore_missing)
new_value = self._process_assignment_modifiers(new_value, current_value)
if new_value is None:
return None
new_value = command["set"](new_value, device, True, False)
return self._verify_value(command["name"], new_value, current_value, ignore_missing, device)
def _verify_non_device_command(self, instance, command, new_value, ignore_missing):
if command["custom"] is not None:
return command["custom"](True, new_value, True, ignore_missing)
current_value = self._get_current_value(command)
new_value = self._process_assignment_modifiers(new_value, current_value)
if new_value is None:
return None
new_value = command["set"](new_value, True, False)
return self._verify_value(command["name"], new_value, current_value, ignore_missing)
def _cleanup_all_non_device_commands(self, instance):
for command in reversed([command for command in list(self._commands.values()) if not command["per_device"]]):
if (instance.options.get(command["name"], None) is not None) or (command["name"] in self._options_used_by_dynamic):
self._cleanup_non_device_command(instance, command)
def _cleanup_all_device_commands(self, instance, devices, remove = False):
for command in reversed([command for command in list(self._commands.values()) if command["per_device"]]):
if (instance.options.get(command["name"], None) is not None) or (command["name"] in self._options_used_by_dynamic):
for device in devices:
self._cleanup_device_command(instance, command, device, remove)
def _cleanup_device_command(self, instance, command, device, remove = False):
if command["custom"] is not None:
command["custom"](False, None, device, False, False)
else:
old_value = self._storage_get(instance, command, device)
if old_value is not None:
command["set"](old_value, device, sim = False, remove = remove)
self._storage_unset(instance, command, device)
def _cleanup_non_device_command(self, instance, command):
if command["custom"] is not None:
command["custom"](False, None, False, False)
else:
old_value = self._storage_get(instance, command)
if old_value is not None:
command["set"](old_value, sim = False, remove = False)
self._storage_unset(instance, command)
plugins/plugin_sysfs.py 0000644 00000005206 15035135375 0011336 0 ustar 00 from . import base
import glob
import re
import os.path
from .decorators import *
import tuned.logs
import tuned.consts as consts
from subprocess import *
from tuned.utils.commands import commands
log = tuned.logs.get()
class SysfsPlugin(base.Plugin):
"""
`sysfs`::
Sets various `sysfs` settings specified by the plug-in options.
+
The syntax is `_name_=_value_`, where
`_name_` is the `sysfs` path to use and `_value_` is
the value to write. The `sysfs` path supports the shell-style
wildcard characters (see `man 7 glob` for additional detail).
+
Use this plugin in case you need to change some settings that are
not covered by other plug-ins. Prefer specific plug-ins if they
cover the required settings.
+
.Ignore corrected errors and associated scans that cause latency spikes
====
----
[sysfs]
/sys/devices/system/machinecheck/machinecheck*/ignore_ce=1
----
====
"""
# TODO: resolve possible conflicts with sysctl settings from other plugins
def __init__(self, *args, **kwargs):
super(SysfsPlugin, self).__init__(*args, **kwargs)
self._has_dynamic_options = True
self._cmd = commands()
def _instance_init(self, instance):
instance._has_dynamic_tuning = False
instance._has_static_tuning = True
instance._sysfs = dict([(os.path.normpath(key_value[0]), key_value[1]) for key_value in list(instance.options.items())])
instance._sysfs_original = {}
def _instance_cleanup(self, instance):
pass
def _instance_apply_static(self, instance):
for key, value in list(instance._sysfs.items()):
v = self._variables.expand(value)
for f in glob.iglob(key):
if self._check_sysfs(f):
instance._sysfs_original[f] = self._read_sysfs(f)
self._write_sysfs(f, v)
else:
log.error("rejecting write to '%s' (not inside /sys)" % f)
def _instance_verify_static(self, instance, ignore_missing, devices):
ret = True
for key, value in list(instance._sysfs.items()):
v = self._variables.expand(value)
for f in glob.iglob(key):
if self._check_sysfs(f):
curr_val = self._read_sysfs(f)
if self._verify_value(f, v, curr_val, ignore_missing) == False:
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
for key, value in list(instance._sysfs_original.items()):
self._write_sysfs(key, value)
def _check_sysfs(self, sysfs_file):
return re.match(r"^/sys/.*", sysfs_file)
def _read_sysfs(self, sysfs_file):
data = self._cmd.read_file(sysfs_file).strip()
if len(data) > 0:
return self._cmd.get_active_option(data, False)
else:
return None
def _write_sysfs(self, sysfs_file, value):
return self._cmd.write_to_file(sysfs_file, value)
plugins/plugin_script.py 0000644 00000007414 15035135375 0011476 0 ustar 00 import tuned.consts as consts
from . import base
import tuned.logs
import os
from subprocess import Popen, PIPE
log = tuned.logs.get()
class ScriptPlugin(base.Plugin):
"""
`script`::
Executes an external script or binary when the profile is loaded or
unloaded. You can choose an arbitrary executable.
+
IMPORTANT: The `script` plug-in is provided mainly for compatibility
with earlier releases. Prefer other *TuneD* plug-ins if they cover
the required functionality.
+
*TuneD* calls the executable with one of the following arguments:
+
--
** `start` when loading the profile
** `stop` when unloading the profile
--
+
You need to correctly implement the `stop` action in your executable
and revert all settings that you changed during the `start`
action. Otherwise, the roll-back step after changing your *TuneD*
profile will not work.
+
Bash scripts can import the [filename]`/usr/lib/tuned/functions`
Bash library and use the functions defined there. Use these
functions only for functionality that is not natively provided
by *TuneD*. If a function name starts with an underscore, such as
`_wifi_set_power_level`, consider the function private and do not
use it in your scripts, because it might change in the future.
+
Specify the path to the executable using the `script` parameter in
the plug-in configuration.
+
.Running a Bash script from a profile
====
To run a Bash script named `script.sh` that is located in the profile
directory, use:
----
[script]
script=${i:PROFILE_DIR}/script.sh
----
====
"""
@classmethod
def _get_config_options(self):
return {
"script" : None,
}
def _instance_init(self, instance):
instance._has_static_tuning = True
instance._has_dynamic_tuning = False
if instance.options["script"] is not None:
# FIXME: this hack originated from profiles merger
assert isinstance(instance.options["script"], list)
instance._scripts = instance.options["script"]
else:
instance._scripts = []
def _instance_cleanup(self, instance):
pass
def _call_scripts(self, scripts, arguments):
ret = True
for script in scripts:
environ = os.environ
environ.update(self._variables.get_env())
log.info("calling script '%s' with arguments '%s'" % (script, str(arguments)))
log.debug("using environment '%s'" % str(list(environ.items())))
try:
proc = Popen([script] + arguments, \
stdout=PIPE, stderr=PIPE, \
close_fds=True, env=environ, \
universal_newlines = True, \
cwd = os.path.dirname(script))
out, err = proc.communicate()
if len(err):
log.error("script '%s' error output: '%s'" % (script, err[:-1]))
if proc.returncode:
log.error("script '%s' returned error code: %d" % (script, proc.returncode))
ret = False
except (OSError,IOError) as e:
log.error("script '%s' error: %s" % (script, e))
ret = False
return ret
def _instance_apply_static(self, instance):
super(ScriptPlugin, self)._instance_apply_static(instance)
self._call_scripts(instance._scripts, ["start"])
def _instance_verify_static(self, instance, ignore_missing, devices):
ret = True
if super(ScriptPlugin, self)._instance_verify_static(instance,
ignore_missing, devices) == False:
ret = False
args = ["verify"]
if ignore_missing:
args += ["ignore_missing"]
if self._call_scripts(instance._scripts, args) == True:
log.info(consts.STR_VERIFY_PROFILE_OK % instance._scripts)
else:
log.error(consts.STR_VERIFY_PROFILE_FAIL % instance._scripts)
ret = False
return ret
def _instance_unapply_static(self, instance, rollback = consts.ROLLBACK_SOFT):
args = ["stop"]
if rollback == consts.ROLLBACK_FULL:
args = args + ["full_rollback"]
self._call_scripts(reversed(instance._scripts), args)
super(ScriptPlugin, self)._instance_unapply_static(instance, rollback)
daemon/__init__.py 0000644 00000000113 15035135375 0010122 0 ustar 00 from .application import *
from .controller import *
from .daemon import *
daemon/__pycache__/controller.cpython-36.pyc 0000644 00000032563 15035135375 0015050 0 ustar 00 3
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controllerZdaemon� r r � /usr/lib/python3.6/__init__.py�<module> s daemon/controller.py 0000644 00000032323 15035135375 0010556 0 ustar 00 from tuned import exports
import tuned.logs
import tuned.exceptions
from tuned.exceptions import TunedException
import threading
import tuned.consts as consts
from tuned.utils.commands import commands
__all__ = ["Controller"]
log = tuned.logs.get()
class TimerStore(object):
def __init__(self):
self._timers = dict()
self._timers_lock = threading.Lock()
def store_timer(self, token, timer):
with self._timers_lock:
self._timers[token] = timer
def drop_timer(self, token):
with self._timers_lock:
try:
timer = self._timers[token]
timer.cancel()
del self._timers[token]
except:
pass
def cancel_all(self):
with self._timers_lock:
for timer in self._timers.values():
timer.cancel()
self._timers.clear()
class Controller(tuned.exports.interfaces.ExportableInterface):
"""
Controller's purpose is to keep the program running, start/stop the tuning,
and export the controller interface (currently only over D-Bus).
"""
def __init__(self, daemon, global_config):
super(Controller, self).__init__()
self._daemon = daemon
self._global_config = global_config
self._terminate = threading.Event()
self._cmd = commands()
self._timer_store = TimerStore()
def run(self):
"""
Controller main loop. The call is blocking.
"""
log.info("starting controller")
res = self.start()
daemon = self._global_config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON)
if not res and daemon:
exports.start()
if daemon:
self._terminate.clear()
# we have to pass some timeout, otherwise signals will not work
while not self._cmd.wait(self._terminate, 1):
exports.period_check()
log.info("terminating controller")
self.stop()
def terminate(self):
self._terminate.set()
def sighup(self):
if not self._daemon._sighup_processing.is_set():
self._daemon._sighup_processing.set()
if not self.reload():
self._daemon._sighup_processing.clear()
@exports.signal("sbs")
def profile_changed(self, profile_name, result, errstr):
pass
# exports decorator checks the authorization (currently through polkit), caller is None if
# no authorization was performed (i.e. the call should process as authorized), string
# identifying caller (with DBus it's the caller bus name) if authorized and empty
# string if not authorized, caller must be the last argument
def _log_capture_abort(self, token):
tuned.logs.log_capture_finish(token)
self._timer_store.drop_timer(token)
@exports.export("ii", "s")
def log_capture_start(self, log_level, timeout, caller = None):
if caller == "":
return ""
token = tuned.logs.log_capture_start(log_level)
if token is None:
return ""
if timeout > 0:
timer = threading.Timer(timeout,
self._log_capture_abort, args = [token])
self._timer_store.store_timer(token, timer)
timer.start()
return "" if token is None else token
@exports.export("s", "s")
def log_capture_finish(self, token, caller = None):
if caller == "":
return ""
res = tuned.logs.log_capture_finish(token)
self._timer_store.drop_timer(token)
return "" if res is None else res
@exports.export("", "b")
def start(self, caller = None):
if caller == "":
return False
if self._global_config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON):
if self._daemon.is_running():
return True
elif not self._daemon.is_enabled():
return False
return self._daemon.start()
def _stop(self, profile_switch = False):
if not self._daemon.is_running():
res = True
else:
res = self._daemon.stop(profile_switch = profile_switch)
self._timer_store.cancel_all()
return res
@exports.export("", "b")
def stop(self, caller = None):
if caller == "":
return False
return self._stop(profile_switch = False)
@exports.export("", "b")
def reload(self, caller = None):
if caller == "":
return False
if self._daemon.is_running():
stop_ok = self._stop(profile_switch = True)
if not stop_ok:
return False
try:
self._daemon.reload_profile_config()
except TunedException as e:
log.error("Failed to reload TuneD: %s" % e)
return False
return self.start()
def _switch_profile(self, profile_name, manual):
was_running = self._daemon.is_running()
msg = "OK"
success = True
reapply = False
try:
if was_running:
self._daemon.stop(profile_switch = True)
self._daemon.set_profile(profile_name, manual)
except tuned.exceptions.TunedException as e:
success = False
msg = str(e)
if was_running and self._daemon.profile.name == profile_name:
log.error("Failed to reapply profile '%s'. Did it change on disk and break?" % profile_name)
reapply = True
else:
log.error("Failed to apply profile '%s'" % profile_name)
finally:
if was_running:
if reapply:
log.warn("Applying previously applied (possibly out-dated) profile '%s'." % profile_name)
elif not success:
log.info("Applying previously applied profile.")
self._daemon.start()
return (success, msg)
@exports.export("s", "(bs)")
def switch_profile(self, profile_name, caller = None):
if caller == "":
return (False, "Unauthorized")
if not self._cmd.is_valid_name(profile_name):
return (False, "Invalid profile_name")
return self._switch_profile(profile_name, True)
@exports.export("", "(bs)")
def auto_profile(self, caller = None):
if caller == "":
return (False, "Unauthorized")
profile_name = self.recommend_profile()
return self._switch_profile(profile_name, False)
@exports.export("", "s")
def active_profile(self, caller = None):
if caller == "":
return ""
if self._daemon.profile is not None:
return self._daemon.profile.name
else:
return ""
@exports.export("", "(ss)")
def profile_mode(self, caller = None):
if caller == "":
return "unknown", "Unauthorized"
manual = self._daemon.manual
if manual is None:
# This means no profile is applied. Check the preset value.
try:
profile, manual = self._cmd.get_active_profile()
if manual is None:
manual = profile is not None
except TunedException as e:
mode = "unknown"
error = str(e)
return mode, error
mode = consts.ACTIVE_PROFILE_MANUAL if manual else consts.ACTIVE_PROFILE_AUTO
return mode, ""
@exports.export("", "s")
def post_loaded_profile(self, caller = None):
if caller == "":
return ""
return self._daemon.post_loaded_profile or ""
@exports.export("", "b")
def disable(self, caller = None):
if caller == "":
return False
if self._daemon.is_running():
self._daemon.stop()
if self._daemon.is_enabled():
self._daemon.set_all_profiles(None, True, None,
save_instantly=True)
return True
@exports.export("", "b")
def is_running(self, caller = None):
if caller == "":
return False
return self._daemon.is_running()
@exports.export("", "as")
def profiles(self, caller = None):
if caller == "":
return []
return self._daemon.profile_loader.profile_locator.get_known_names()
@exports.export("", "a(ss)")
def profiles2(self, caller = None):
if caller == "":
return []
return self._daemon.profile_loader.profile_locator.get_known_names_summary()
@exports.export("s", "(bsss)")
def profile_info(self, profile_name, caller = None):
if caller == "" or not self._cmd.is_valid_name(profile_name):
return (False, "", "", "")
if profile_name is None or profile_name == "":
profile_name = self.active_profile()
return tuple(self._daemon.profile_loader.profile_locator.get_profile_attrs(profile_name, [consts.PROFILE_ATTR_SUMMARY, consts.PROFILE_ATTR_DESCRIPTION], [""]))
@exports.export("", "s")
def recommend_profile(self, caller = None):
if caller == "":
return ""
return self._daemon.profile_recommender.recommend()
@exports.export("", "b")
def verify_profile(self, caller = None):
if caller == "":
return False
return self._daemon.verify_profile(ignore_missing = False)
@exports.export("", "b")
def verify_profile_ignore_missing(self, caller = None):
if caller == "":
return False
return self._daemon.verify_profile(ignore_missing = True)
@exports.export("", "a{sa{ss}}")
def get_all_plugins(self, caller = None):
"""Return dictionary with accesible plugins
Return:
dictionary -- {plugin_name: {parameter_name: default_value}}
"""
if caller == "":
return {}
plugins = {}
for plugin_class in self._daemon.get_all_plugins():
plugin_name = plugin_class.__module__.split(".")[-1].split("_", 1)[1]
conf_options = plugin_class._get_config_options()
plugins[plugin_name] = {}
for key, val in conf_options.items():
plugins[plugin_name][key] = str(val)
return plugins
@exports.export("s","s")
def get_plugin_documentation(self, plugin_name, caller = None):
"""Return docstring of plugin's class"""
if caller == "" or not self._cmd.is_valid_name(plugin_name):
return ""
return self._daemon.get_plugin_documentation(str(plugin_name))
@exports.export("s","a{ss}")
def get_plugin_hints(self, plugin_name, caller = None):
"""Return dictionary with plugin's parameters and their hints
Parameters:
plugin_name -- name of plugin
Return:
dictionary -- {parameter_name: hint}
"""
if caller == "" or not self._cmd.is_valid_name(plugin_name):
return {}
return self._daemon.get_plugin_hints(str(plugin_name))
@exports.export("s", "b")
def register_socket_signal_path(self, path, caller = None):
"""Allows to dynamically add sockets to send signals to
Parameters:
path -- path to socket to register for sending signals
Return:
bool -- True on success
"""
if caller == "" or not self._cmd.is_valid_name(path):
return False
if self._daemon._application and self._daemon._application._unix_socket_exporter:
self._daemon._application._unix_socket_exporter.register_signal_path(path)
return True
return False
# devices - devices to migrate from other instances, string of form "dev1,dev2,dev3,..."
# or "cpulist:CPULIST", where CPULIST is e.g. "0-3,6,8-9"
# instance_name - instance where to migrate devices
@exports.export("ss", "(bs)")
def instance_acquire_devices(self, devices, instance_name, caller = None):
if caller == "":
return (False, "Unauthorized")
if not self._cmd.is_valid_name(devices):
return (False, "Invalid devices")
if not self._cmd.is_valid_name(instance_name):
return (False, "Invalid instance_name")
found = False
for instance_target in self._daemon._unit_manager.instances:
if instance_target.name == instance_name:
log.debug("Found instance '%s'." % instance_target.name)
found = True
break
if not found:
rets = "Instance '%s' not found" % instance_name
log.error(rets)
return (False, rets)
devs = set(self._cmd.devstr2devs(devices))
log.debug("Instance '%s' trying to acquire devices '%s'." % (instance_target.name, str(devs)))
for instance in self._daemon._unit_manager.instances:
devs_moving = instance.processed_devices & devs
if len(devs_moving):
devs -= devs_moving
log.info("Moving devices '%s' from instance '%s' to instance '%s'." % (str(devs_moving),
instance.name, instance_target.name))
if (instance.plugin.name != instance_target.plugin.name):
rets = "Target instance '%s' is of type '%s', but devices '%s' are currently handled by " \
"instance '%s' which is of type '%s'." % (instance_target.name,
instance_target.plugin.name, str(devs_moving), instance.name, instance.plugin.name)
log.error(rets)
return (False, rets)
instance.plugin._remove_devices_nocheck(instance, devs_moving)
instance_target.plugin._add_devices_nocheck(instance_target, devs_moving)
if (len(devs)):
rets = "Ignoring devices not handled by any instance '%s'." % str(devs)
log.info(rets)
return (False, rets)
return (True, "OK")
@exports.export("s", "(bsa(ss))")
def get_instances(self, plugin_name, caller = None):
"""Return a list of active instances of a plugin or all active instances
Parameters:
plugin_name -- name of the plugin or an empty string
Return:
bool -- True on success
string -- error message or "OK"
list of string pairs -- [(instance_name, plugin_name)]
"""
if caller == "":
return (False, "Unauthorized", [])
if not self._cmd.is_valid_name(plugin_name):
return (False, "Invalid plugin_name", [])
if plugin_name != "" and plugin_name not in self.get_all_plugins().keys():
rets = "Plugin '%s' does not exist" % plugin_name
log.error(rets)
return (False, rets, [])
instances = filter(lambda instance: instance.active, self._daemon._unit_manager.instances)
if plugin_name != "":
instances = filter(lambda instance: instance.plugin.name == plugin_name, instances)
return (True, "OK", list(map(lambda instance: (instance.name, instance.plugin.name), instances)))
@exports.export("s", "(bsas)")
def instance_get_devices(self, instance_name, caller = None):
"""Return a list of devices assigned to an instance
Parameters:
instance_name -- name of the instance
Return:
bool -- True on success
string -- error message or "OK"
list of strings -- device names
"""
if caller == "":
return (False, "Unauthorized", [])
if not self._cmd.is_valid_name(instance_name):
return (False, "Invalid instance_name", [])
for instance in self._daemon._unit_manager.instances:
if instance.name == instance_name:
return (True, "OK", sorted(list(instance.processed_devices)))
rets = "Instance '%s' not found" % instance_name
log.error(rets)
return (False, rets, [])
daemon/daemon.py 0000644 00000031671 15035135375 0007643 0 ustar 00 import os
import errno
import threading
import tuned.logs
from tuned.exceptions import TunedException
from tuned.profiles.exceptions import InvalidProfileException
import tuned.consts as consts
from tuned.utils.commands import commands
from tuned import exports
from tuned.utils.profile_recommender import ProfileRecommender
import re
log = tuned.logs.get()
class Daemon(object):
def __init__(self, unit_manager, profile_loader, profile_names=None, config=None, application=None):
log.debug("initializing daemon")
self._daemon = consts.CFG_DEF_DAEMON
self._sleep_interval = int(consts.CFG_DEF_SLEEP_INTERVAL)
self._update_interval = int(consts.CFG_DEF_UPDATE_INTERVAL)
self._dynamic_tuning = consts.CFG_DEF_DYNAMIC_TUNING
self._recommend_command = True
self._rollback = consts.CFG_DEF_ROLLBACK
if config is not None:
self._daemon = config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON)
self._sleep_interval = int(config.get(consts.CFG_SLEEP_INTERVAL, consts.CFG_DEF_SLEEP_INTERVAL))
self._update_interval = int(config.get(consts.CFG_UPDATE_INTERVAL, consts.CFG_DEF_UPDATE_INTERVAL))
self._dynamic_tuning = config.get_bool(consts.CFG_DYNAMIC_TUNING, consts.CFG_DEF_DYNAMIC_TUNING)
self._recommend_command = config.get_bool(consts.CFG_RECOMMEND_COMMAND, consts.CFG_DEF_RECOMMEND_COMMAND)
self._rollback = config.get(consts.CFG_ROLLBACK, consts.CFG_DEF_ROLLBACK)
self._application = application
if self._sleep_interval <= 0:
self._sleep_interval = int(consts.CFG_DEF_SLEEP_INTERVAL)
if self._update_interval == 0:
self._dynamic_tuning = False
elif self._update_interval < self._sleep_interval:
self._update_interval = self._sleep_interval
self._sleep_cycles = self._update_interval // self._sleep_interval
log.info("using sleep interval of %d second(s)" % self._sleep_interval)
if self._dynamic_tuning:
log.info("dynamic tuning is enabled (can be overridden by plugins)")
log.info("using update interval of %d second(s) (%d times of the sleep interval)" % (self._sleep_cycles * self._sleep_interval, self._sleep_cycles))
self._profile_recommender = ProfileRecommender(is_hardcoded = not self._recommend_command)
self._unit_manager = unit_manager
self._profile_loader = profile_loader
self._init_threads()
self._cmd = commands()
try:
self._init_profile(profile_names)
except TunedException as e:
log.error("Cannot set initial profile. No tunings will be enabled: %s" % e)
def _init_threads(self):
self._thread = None
self._terminate = threading.Event()
# Flag which is set if terminating due to profile_switch
self._terminate_profile_switch = threading.Event()
# Flag which is set if there is no operation in progress
self._not_used = threading.Event()
# Flag which is set if SIGHUP is being processed
self._sighup_processing = threading.Event()
self._not_used.set()
self._profile_applied = threading.Event()
def reload_profile_config(self):
"""Read configuration files again and load profile according to them"""
self._init_profile(None)
def _init_profile(self, profile_names):
manual = True
post_loaded_profile = self._cmd.get_post_loaded_profile()
if profile_names is None:
(profile_names, manual) = self._get_startup_profile()
if profile_names is None:
msg = "No profile is preset, running in manual mode. "
if post_loaded_profile:
msg += "Only post-loaded profile will be enabled"
else:
msg += "No profile will be enabled."
log.info(msg)
# Passed through '-p' cmdline option
elif profile_names == "":
if post_loaded_profile:
log.info("Only post-loaded profile will be enabled")
else:
log.info("No profile will be enabled.")
self._profile = None
self._manual = None
self._active_profiles = []
self._post_loaded_profile = None
self.set_all_profiles(profile_names, manual, post_loaded_profile)
def _load_profiles(self, profile_names, manual):
profile_names = profile_names or ""
profile_list = profile_names.split()
if self._post_loaded_profile:
log.info("Using post-loaded profile '%s'"
% self._post_loaded_profile)
profile_list = profile_list + [self._post_loaded_profile]
for profile in profile_list:
if profile not in self.profile_loader.profile_locator.get_known_names():
errstr = "Requested profile '%s' doesn't exist." % profile
self._notify_profile_changed(profile_names, False, errstr)
raise TunedException(errstr)
try:
if profile_list:
self._profile = self._profile_loader.load(profile_list)
else:
self._profile = None
self._manual = manual
self._active_profiles = profile_names.split()
except InvalidProfileException as e:
errstr = "Cannot load profile(s) '%s': %s" % (" ".join(profile_list), e)
self._notify_profile_changed(profile_names, False, errstr)
raise TunedException(errstr)
def set_profile(self, profile_names, manual):
if self.is_running():
errstr = "Cannot set profile while the daemon is running."
self._notify_profile_changed(profile_names, False,
errstr)
raise TunedException(errstr)
self._load_profiles(profile_names, manual)
def _set_post_loaded_profile(self, profile_name):
if not profile_name:
self._post_loaded_profile = None
elif len(profile_name.split()) > 1:
errstr = "Whitespace is not allowed in profile names; only a single post-loaded profile is allowed."
raise TunedException(errstr)
else:
self._post_loaded_profile = profile_name
def set_all_profiles(self, active_profiles, manual, post_loaded_profile,
save_instantly=False):
if self.is_running():
errstr = "Cannot set profile while the daemon is running."
self._notify_profile_changed(active_profiles, False,
errstr)
raise TunedException(errstr)
self._set_post_loaded_profile(post_loaded_profile)
self._load_profiles(active_profiles, manual)
if save_instantly:
self._save_active_profile(active_profiles, manual)
self._save_post_loaded_profile(post_loaded_profile)
@property
def profile(self):
return self._profile
@property
def manual(self):
return self._manual
@property
def post_loaded_profile(self):
# Return the profile name only if the profile is active. If
# the profile is not active, then the value is meaningless.
return self._post_loaded_profile if self._profile else None
@property
def profile_recommender(self):
return self._profile_recommender
@property
def profile_loader(self):
return self._profile_loader
# send notification when profile is changed (everything is setup) or if error occured
# result: True - OK, False - error occured
def _notify_profile_changed(self, profile_names, result, errstr):
if self._application is not None:
exports.send_signal(consts.SIGNAL_PROFILE_CHANGED, profile_names, result, errstr)
return errstr
def _full_rollback_required(self):
retcode, out = self._cmd.execute(["systemctl", "is-system-running"], no_errors = [0])
if retcode < 0:
return False
if out[:8] == "stopping":
return False
retcode, out = self._cmd.execute(["systemctl", "list-jobs"], no_errors = [0])
return re.search(r"\b(shutdown|reboot|halt|poweroff)\.target.*start", out) is None and not retcode
def _thread_code(self):
if self._profile is None:
raise TunedException("Cannot start the daemon without setting a profile.")
self._unit_manager.create(self._profile.units)
self._save_active_profile(" ".join(self._active_profiles),
self._manual)
self._save_post_loaded_profile(self._post_loaded_profile)
self._unit_manager.start_tuning()
self._profile_applied.set()
log.info("static tuning from profile '%s' applied" % self._profile.name)
if self._daemon:
exports.start()
profile_names = " ".join(self._active_profiles)
self._notify_profile_changed(profile_names, True, "OK")
self._sighup_processing.clear()
if self._daemon:
# In python 2 interpreter with applied patch for rhbz#917709 we need to periodically
# poll, otherwise the python will not have chance to update events / locks (due to GIL)
# and e.g. DBus control will not work. The polling interval of 1 seconds (which is
# the default) is still much better than 50 ms polling with unpatched interpreter.
# For more details see TuneD rhbz#917587.
_sleep_cnt = self._sleep_cycles
while not self._cmd.wait(self._terminate, self._sleep_interval):
if self._dynamic_tuning:
_sleep_cnt -= 1
if _sleep_cnt <= 0:
_sleep_cnt = self._sleep_cycles
log.debug("updating monitors")
self._unit_manager.update_monitors()
log.debug("performing tunings")
self._unit_manager.update_tuning()
self._profile_applied.clear()
# wait for others to complete their tasks, use timeout 3 x sleep_interval to prevent
# deadlocks
i = 0
while not self._cmd.wait(self._not_used, self._sleep_interval) and i < 3:
i += 1
# if terminating due to profile switch
if self._terminate_profile_switch.is_set():
rollback = consts.ROLLBACK_FULL
else:
# Assume only soft rollback is needed. Soft rollback means reverting all
# non-persistent tunings applied by a plugin instance. In contrast to full
# rollback, information about what to revert is kept in RAM (volatile
# memory) -- TuneD data structures.
# With systemd TuneD detects system shutdown and in such a case it doesn't
# perform full cleanup. If the system is not shutting down, it means that TuneD
# was explicitly stopped by the user and in such case do the full cleanup. On
# systems without systemd, full cleanup is never performed.
rollback = consts.ROLLBACK_SOFT
if not self._full_rollback_required():
log.info("terminating TuneD due to system shutdown / reboot")
elif self._rollback == "not_on_exit":
# no rollback on TuneD exit whatsoever
rollback = consts.ROLLBACK_NONE
log.info("terminating TuneD and not rolling back any changes due to '%s' option in '%s'" % (consts.CFG_ROLLBACK, consts.GLOBAL_CONFIG_FILE))
else:
if self._daemon:
log.info("terminating TuneD, rolling back all changes")
rollback = consts.ROLLBACK_FULL
else:
log.info("terminating TuneD in one-shot mode")
if self._daemon:
self._unit_manager.stop_tuning(rollback)
self._unit_manager.destroy_all()
def _save_active_profile(self, profile_names, manual):
try:
self._cmd.save_active_profile(profile_names, manual)
except TunedException as e:
log.error(str(e))
def _save_post_loaded_profile(self, profile_name):
try:
self._cmd.save_post_loaded_profile(profile_name)
except TunedException as e:
log.error(str(e))
def _get_recommended_profile(self):
log.info("Running in automatic mode, checking what profile is recommended for your configuration.")
profile = self._profile_recommender.recommend()
log.info("Using '%s' profile" % profile)
return profile
def _get_startup_profile(self):
profile, manual = self._cmd.get_active_profile()
if manual is None:
manual = profile is not None
if not manual:
profile = self._get_recommended_profile()
return profile, manual
def get_all_plugins(self):
"""Return all accessible plugin classes"""
return self._unit_manager.plugins_repository.load_all_plugins()
def get_plugin_documentation(self, plugin_name):
"""Return plugin class docstring"""
try:
plugin_class = self._unit_manager.plugins_repository.load_plugin(
plugin_name
)
except ImportError:
return ""
return plugin_class.__doc__
def get_plugin_hints(self, plugin_name):
"""Return plugin's parameters and their hints
Parameters:
plugin_name -- plugins name
Return:
dictionary -- {parameter_name: hint}
"""
try:
plugin_class = self._unit_manager.plugins_repository.load_plugin(
plugin_name
)
except ImportError:
return {}
return plugin_class.get_config_options_hints()
def is_enabled(self):
return self._profile is not None
def is_running(self):
return self._thread is not None and self._thread.is_alive()
def start(self):
if self.is_running():
return False
if self._profile is None:
return False
log.info("starting tuning")
self._not_used.set()
self._thread = threading.Thread(target=self._thread_code)
self._terminate_profile_switch.clear()
self._terminate.clear()
self._thread.start()
return True
def verify_profile(self, ignore_missing):
if not self.is_running():
log.error("TuneD is not running")
return False
if self._profile is None:
log.error("no profile is set")
return False
if not self._profile_applied.is_set():
log.error("profile is not applied")
return False
# using daemon, the main loop mustn't exit before our completion
self._not_used.clear()
log.info("verifying profile(s): %s" % self._profile.name)
ret = self._unit_manager.verify_tuning(ignore_missing)
# main loop is allowed to exit
self._not_used.set()
return ret
# profile_switch is helper telling plugins whether the stop is due to profile switch
def stop(self, profile_switch = False):
if not self.is_running():
return False
log.info("stopping tuning")
if profile_switch:
self._terminate_profile_switch.set()
self._terminate.set()
self._thread.join()
self._thread = None
return True
daemon/application.py 0000644 00000017227 15035135375 0010704 0 ustar 00 from tuned import storage, units, monitors, plugins, profiles, exports, hardware
from tuned.exceptions import TunedException
import tuned.logs
import tuned.version
from . import controller
from . import daemon
import signal
import os
import sys
import select
import struct
import tuned.consts as consts
from tuned.utils.global_config import GlobalConfig
log = tuned.logs.get()
__all__ = ["Application"]
class Application(object):
def __init__(self, profile_name = None, config = None):
# os.uname()[2] is for the python-2.7 compatibility, it's the release string
# like e.g. '5.15.13-100.fc34.x86_64'
log.info("TuneD: %s, kernel: %s" % (tuned.version.TUNED_VERSION_STR, os.uname()[2]))
self._dbus_exporter = None
self._unix_socket_exporter = None
storage_provider = storage.PickleProvider()
storage_factory = storage.Factory(storage_provider)
self.config = GlobalConfig() if config is None else config
if self.config.get_bool(consts.CFG_DYNAMIC_TUNING):
log.info("dynamic tuning is enabled (can be overridden in plugins)")
else:
log.info("dynamic tuning is globally disabled")
monitors_repository = monitors.Repository()
udev_buffer_size = self.config.get_size("udev_buffer_size", consts.CFG_DEF_UDEV_BUFFER_SIZE)
hardware_inventory = hardware.Inventory(buffer_size=udev_buffer_size)
device_matcher = hardware.DeviceMatcher()
device_matcher_udev = hardware.DeviceMatcherUdev()
plugin_instance_factory = plugins.instance.Factory()
self.variables = profiles.variables.Variables()
plugins_repository = plugins.Repository(monitors_repository, storage_factory, hardware_inventory,\
device_matcher, device_matcher_udev, plugin_instance_factory, self.config, self.variables)
def_instance_priority = int(self.config.get(consts.CFG_DEFAULT_INSTANCE_PRIORITY, consts.CFG_DEF_DEFAULT_INSTANCE_PRIORITY))
unit_manager = units.Manager(
plugins_repository, monitors_repository,
def_instance_priority, hardware_inventory, self.config)
profile_factory = profiles.Factory()
profile_merger = profiles.Merger()
profile_locator = profiles.Locator(consts.LOAD_DIRECTORIES)
profile_loader = profiles.Loader(profile_locator, profile_factory, profile_merger, self.config, self.variables)
self._daemon = daemon.Daemon(unit_manager, profile_loader, profile_name, self.config, self)
self._controller = controller.Controller(self._daemon, self.config)
self._init_signals()
self._pid_file = None
def _handle_signal(self, signal_number, handler):
def handler_wrapper(_signal_number, _frame):
if signal_number == _signal_number:
handler()
signal.signal(signal_number, handler_wrapper)
def _init_signals(self):
self._handle_signal(signal.SIGHUP, self._controller.sighup)
self._handle_signal(signal.SIGINT, self._controller.terminate)
self._handle_signal(signal.SIGTERM, self._controller.terminate)
def attach_to_dbus(self, bus_name, object_name, interface_name, namespace):
if self._dbus_exporter is not None:
raise TunedException("DBus interface is already initialized.")
self._dbus_exporter = exports.dbus.DBusExporter(bus_name, interface_name, object_name, namespace)
exports.register_exporter(self._dbus_exporter)
def attach_to_unix_socket(self):
if self._unix_socket_exporter is not None:
raise TunedException("Unix socket interface is already initialized.")
self._unix_socket_exporter = exports.unix_socket.UnixSocketExporter(self.config.get(consts.CFG_UNIX_SOCKET_PATH),
self.config.get(consts.CFG_UNIX_SOCKET_SIGNAL_PATHS),
self.config.get(consts.CFG_UNIX_SOCKET_OWNERSHIP),
self.config.get_int(consts.CFG_UNIX_SOCKET_PERMISIONS),
self.config.get_int(consts.CFG_UNIX_SOCKET_CONNECTIONS_BACKLOG))
exports.register_exporter(self._unix_socket_exporter)
def register_controller(self):
exports.register_object(self._controller)
def _daemonize_parent(self, parent_in_fd, child_out_fd):
"""
Wait till the child signalizes that the initialization is complete by writing
some uninteresting data into the pipe.
"""
os.close(child_out_fd)
(read_ready, drop, drop) = select.select([parent_in_fd], [], [], consts.DAEMONIZE_PARENT_TIMEOUT)
if len(read_ready) != 1:
os.close(parent_in_fd)
raise TunedException("Cannot daemonize, timeout when waiting for the child process.")
response = os.read(parent_in_fd, 8)
os.close(parent_in_fd)
if len(response) == 0:
raise TunedException("Cannot daemonize, no response from child process received.")
try:
val = struct.unpack("?", response)[0]
except struct.error:
raise TunedException("Cannot daemonize, invalid response from child process received.")
if val != True:
raise TunedException("Cannot daemonize, child process reports failure.")
def write_pid_file(self, pid_file = consts.PID_FILE):
self._pid_file = pid_file
self._delete_pid_file()
try:
dir_name = os.path.dirname(self._pid_file)
if not os.path.exists(dir_name):
os.makedirs(dir_name)
with os.fdopen(os.open(self._pid_file, os.O_CREAT|os.O_TRUNC|os.O_WRONLY , 0o644), "w") as f:
f.write("%d" % os.getpid())
except (OSError,IOError) as error:
log.critical("cannot write the PID to %s: %s" % (self._pid_file, str(error)))
def _delete_pid_file(self):
if os.path.exists(self._pid_file):
try:
os.unlink(self._pid_file)
except OSError as error:
log.warning("cannot remove existing PID file %s, %s" % (self._pid_file, str(error)))
def _daemonize_child(self, pid_file, parent_in_fd, child_out_fd):
"""
Finishes daemonizing process, writes a PID file and signalizes to the parent
that the initialization is complete.
"""
os.close(parent_in_fd)
os.chdir("/")
os.setsid()
os.umask(0)
try:
pid = os.fork()
if pid > 0:
sys.exit(0)
except OSError as error:
log.critical("cannot daemonize, fork() error: %s" % str(error))
val = struct.pack("?", False)
os.write(child_out_fd, val)
os.close(child_out_fd)
raise TunedException("Cannot daemonize, second fork() failed.")
fd = open("/dev/null", "w+")
os.dup2(fd.fileno(), sys.stdin.fileno())
os.dup2(fd.fileno(), sys.stdout.fileno())
os.dup2(fd.fileno(), sys.stderr.fileno())
self.write_pid_file(pid_file)
log.debug("successfully daemonized")
val = struct.pack("?", True)
os.write(child_out_fd, val)
os.close(child_out_fd)
def daemonize(self, pid_file = consts.PID_FILE):
"""
Daemonizes the application. In case of failure, TunedException is raised
in the parent process. If the operation is successfull, the main process
is terminated and only child process returns from this method.
"""
parent_child_fds = os.pipe()
try:
child_pid = os.fork()
except OSError as error:
os.close(parent_child_fds[0])
os.close(parent_child_fds[1])
raise TunedException("Cannot daemonize, fork() failed.")
try:
if child_pid > 0:
self._daemonize_parent(*parent_child_fds)
sys.exit(0)
else:
self._daemonize_child(pid_file, *parent_child_fds)
except:
# pass exceptions only into parent process
if child_pid > 0:
raise
else:
sys.exit(1)
@property
def daemon(self):
return self._daemon
@property
def controller(self):
return self._controller
def run(self, daemon):
# override global config if ran from command line with daemon option (-d)
if daemon:
self.config.set(consts.CFG_DAEMON, True)
if not self.config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON):
log.warn("Using one shot no daemon mode, most of the functionality will be not available, it can be changed in global config")
result = self._controller.run()
if self.config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON):
exports.stop()
if self._pid_file is not None:
self._delete_pid_file()
return result
exports/__init__.py 0000644 00000003561 15035135375 0010375 0 ustar 00 from . import interfaces
from . import controller
from . import dbus_exporter as dbus
from . import dbus_exporter_with_properties as dbus_with_properties
from . import unix_socket_exporter as unix_socket
def export(*args, **kwargs):
"""Decorator, use to mark exportable methods."""
def wrapper(method):
method.export_params = [ args, kwargs ]
return method
return wrapper
def signal(*args, **kwargs):
"""Decorator, use to mark exportable signals."""
def wrapper(method):
method.signal_params = [ args, kwargs ]
return method
return wrapper
def property_setter(*args, **kwargs):
"""Decorator, use to mark setters of exportable properties."""
def wrapper(method):
method.property_set_params = [ args, kwargs ]
return method
return wrapper
def property_getter(*args, **kwargs):
"""Decorator, use to mark getters of exportable properties."""
def wrapper(method):
method.property_get_params = [ args, kwargs ]
return method
return wrapper
def property_changed(*args, **kwargs):
ctl = controller.ExportsController.get_instance()
return ctl.property_changed(*args, **kwargs)
def register_exporter(instance):
if not isinstance(instance, interfaces.ExporterInterface):
raise Exception()
ctl = controller.ExportsController.get_instance()
return ctl.register_exporter(instance)
def register_object(instance):
if not isinstance(instance, interfaces.ExportableInterface):
raise Exception()
ctl = controller.ExportsController.get_instance()
return ctl.register_object(instance)
def send_signal(*args, **kwargs):
ctl = controller.ExportsController.get_instance()
return ctl.send_signal(*args, **kwargs)
def start():
ctl = controller.ExportsController.get_instance()
return ctl.start()
def stop():
ctl = controller.ExportsController.get_instance()
return ctl.stop()
def period_check():
ctl = controller.ExportsController.get_instance()
return ctl.period_check()
exports/dbus_exporter.py 0000644 00000017117 15035135375 0011525 0 ustar 00 from . import interfaces
import dbus.service
import dbus.mainloop.glib
import dbus.exceptions
import threading
import signal
import tuned.logs
import tuned.consts as consts
import traceback
import logging
from inspect import ismethod
from tuned.utils.polkit import polkit
from gi.repository import GLib
from types import FunctionType
from dbus.exceptions import DBusException
from dbus.lowlevel import ErrorMessage
try:
# Python3 version
# getfullargspec is not present in Python2, so when we drop P2 support
# replace "getargspec(func)" in code with "getfullargspec(func).args"
from inspect import getfullargspec
def getargspec(func):
return getfullargspec(func)
except ImportError:
# Python2 version, drop after support stops
from inspect import getargspec
log = tuned.logs.get()
# This is mostly copy of the code from the dbus.service module without the
# code that sends tracebacks through the D-Bus (i.e. no library tracebacks
# are exposed on the D-Bus now).
def _method_reply_error(connection, message, exception):
name = getattr(exception, '_dbus_error_name', None)
if name is not None:
pass
elif getattr(exception, '__module__', '') in ('', '__main__'):
name = 'org.freedesktop.DBus.Python.%s' % exception.__class__.__name__
else:
name = 'org.freedesktop.DBus.Python.%s.%s' % (exception.__module__, exception.__class__.__name__)
if isinstance(exception, DBusException):
contents = exception.get_dbus_message()
else:
contents = ''.join(traceback.format_exception_only(exception.__class__,
exception))
reply = ErrorMessage(message, name, contents)
if not message.get_no_reply():
connection.send_message(reply)
class DBusExporter(interfaces.ExporterInterface):
"""
Export method calls through DBus Interface.
We take a method to be exported and create a simple wrapper function
to call it. This is required as we need the original function to be
bound to the original object instance. While the wrapper will be bound
to an object we dynamically construct.
"""
def __init__(self, bus_name, interface_name, object_name, namespace):
# Monkey patching of the D-Bus library _method_reply_error() to reply
# tracebacks via D-Bus only if in the debug mode. It doesn't seem there is a
# more simple way how to cover all possible exceptions that could occur in
# the D-Bus library. Just setting the exception.include_traceback to False doesn't
# seem to help because there is only a subset of exceptions that support this flag.
if log.getEffectiveLevel() != logging.DEBUG:
dbus.service._method_reply_error = _method_reply_error
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
self._dbus_object_cls = None
self._dbus_object = None
self._dbus_methods = {}
self._signals = set()
self._bus_name = bus_name
self._interface_name = interface_name
self._object_name = object_name
self._namespace = namespace
self._thread = None
self._bus_object = None
self._polkit = polkit()
# dirty hack that fixes KeyboardInterrupt handling
# the hack is needed because PyGObject / GTK+-3 developers are morons
signal_handler = signal.getsignal(signal.SIGINT)
self._main_loop = GLib.MainLoop()
signal.signal(signal.SIGINT, signal_handler)
@property
def bus_name(self):
return self._bus_name
@property
def interface_name(self):
return self._interface_name
@property
def object_name(self):
return self._object_name
def running(self):
return self._thread is not None
def _prepare_for_dbus(self, method, wrapper):
source = """def {name}({args}):
return wrapper({args})
""".format(name=method.__name__, args=', '.join(getargspec(method.__func__).args))
code = compile(source, '<decorator-gen-%d>' % len(self._dbus_methods), 'exec')
# https://docs.python.org/3.9/library/inspect.html
# co_consts - tuple of constants used in the bytecode
# example:
# compile("e=2\ndef f(x):\n return x*2\n", "X", 'exec').co_consts
# (2, <code object f at 0x7f8c60c65330, file "X", line 2>, None)
# Because we have only one object in code (our function), we can use code.co_consts[0]
func = FunctionType(code.co_consts[0], locals(), method.__name__)
return func
def export(self, method, in_signature, out_signature):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
method_name = method.__name__
if method_name in self._dbus_methods:
raise Exception("Method with this name is already exported.")
def wrapper(owner, *args, **kwargs):
action_id = self._namespace + "." + method.__name__
caller = args[-1]
log.debug("checking authorization for action '%s' requested by caller '%s'" % (action_id, caller))
ret = self._polkit.check_authorization(caller, action_id)
args_copy = args
if ret == 1:
log.debug("action '%s' requested by caller '%s' was successfully authorized by polkit" % (action_id, caller))
elif ret == 2:
log.warn("polkit error, but action '%s' requested by caller '%s' was successfully authorized by fallback method" % (action_id, caller))
elif ret == 0:
log.info("action '%s' requested by caller '%s' wasn't authorized, ignoring the request" % (action_id, caller))
args_copy = list(args[:-1]) + [""]
elif ret == -1:
log.warn("polkit error and action '%s' requested by caller '%s' wasn't authorized by fallback method, ignoring the request" % (action_id, caller))
args_copy = list(args[:-1]) + [""]
else:
log.error("polkit error and unable to use fallback method to authorize action '%s' requested by caller '%s', ignoring the request" % (action_id, caller))
args_copy = list(args[:-1]) + [""]
return method(*args_copy, **kwargs)
wrapper = self._prepare_for_dbus(method, wrapper)
wrapper = dbus.service.method(self._interface_name, in_signature, out_signature, sender_keyword = "caller")(wrapper)
self._dbus_methods[method_name] = wrapper
def signal(self, method, out_signature):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
method_name = method.__name__
if method_name in self._dbus_methods:
raise Exception("Method with this name is already exported.")
def wrapper(owner, *args, **kwargs):
return method(*args, **kwargs)
wrapper = self._prepare_for_dbus(method, wrapper)
wrapper = dbus.service.signal(self._interface_name, out_signature)(wrapper)
self._dbus_methods[method_name] = wrapper
self._signals.add(method_name)
def send_signal(self, signal, *args, **kwargs):
err = False
if not signal in self._signals or self._bus_object is None:
err = True
try:
method = getattr(self._bus_object, signal)
except AttributeError:
err = True
if err:
raise Exception("Signal '%s' doesn't exist." % signal)
else:
method(*args, **kwargs)
def _construct_dbus_object_class(self):
if self._dbus_object_cls is not None:
raise Exception("The exporter class was already build.")
unique_name = "DBusExporter_%d" % id(self)
cls = type(unique_name, (dbus.service.Object,), self._dbus_methods)
self._dbus_object_cls = cls
def start(self):
if self.running():
return
if self._dbus_object_cls is None:
self._construct_dbus_object_class()
self.stop()
bus = dbus.SystemBus()
bus_name = dbus.service.BusName(self._bus_name, bus)
self._bus_object = self._dbus_object_cls(bus, self._object_name, bus_name)
self._thread = threading.Thread(target=self._thread_code)
self._thread.start()
def stop(self):
if self._thread is not None and self._thread.is_alive():
self._main_loop.quit()
self._thread.join()
self._thread = None
def _thread_code(self):
self._main_loop.run()
del self._bus_object
self._bus_object = None
exports/interfaces.py 0000644 00000001114 15035135375 0010751 0 ustar 00 class ExportableInterface(object):
pass
class ExporterInterface(object):
def export(self, method, in_signature, out_signature):
# to be overridden by concrete implementation
raise NotImplementedError()
def signal(self, method, out_signature):
# to be overridden by concrete implementation
raise NotImplementedError()
def send_signal(self, signal, *args, **kwargs):
# to be overridden by concrete implementation
raise NotImplementedError()
def start(self):
raise NotImplementedError()
def stop(self):
raise NotImplementedError()
def period_check(self):
pass
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r r r r r r r r r s r N)�objectr r r r r r �<module> s exports/unix_socket_exporter.py 0000644 00000017300 15035135375 0013115 0 ustar 00 import os
import re
import pwd, grp
from . import interfaces
import tuned.logs
import tuned.consts as consts
from inspect import ismethod
import socket
import json
import select
log = tuned.logs.get()
class UnixSocketExporter(interfaces.ExporterInterface):
"""
Export method calls through Unix Domain Socket Interface.
We take a method to be exported and create a simple wrapper function
to call it. This is required as we need the original function to be
bound to the original object instance. While the wrapper will be bound
to an object we dynamically construct.
"""
def __init__(self, socket_path=consts.CFG_DEF_UNIX_SOCKET_PATH,
signal_paths=consts.CFG_DEF_UNIX_SOCKET_SIGNAL_PATHS,
ownership=consts.CFG_DEF_UNIX_SOCKET_OWNERSHIP,
permissions=consts.CFG_DEF_UNIX_SOCKET_PERMISIONS,
connections_backlog=consts.CFG_DEF_UNIX_SOCKET_CONNECTIONS_BACKLOG):
self._socket_path = socket_path
self._socket_object = None
self._socket_signal_paths = re.split(r",;", signal_paths) if signal_paths else []
self._socket_signal_objects = []
self._ownership = [-1, -1]
if ownership:
ownership = ownership.split()
for i, o in enumerate(ownership[:2]):
try:
self._ownership[i] = int(o)
except ValueError:
try:
# user
if i == 0:
self._ownership[i] = pwd.getpwnam(o).pw_uid
# group
else:
self._ownership[i] = grp.getgrnam(o).gr_gid
except KeyError:
log.error("%s '%s' does not exists, leaving default" % ("User" if i == 0 else "Group", o))
self._permissions = permissions
self._connections_backlog = connections_backlog
self._unix_socket_methods = {}
self._signals = set()
self._conn = None
self._channel = None
def running(self):
return self._socket_object is not None
def export(self, method, in_signature, out_signature):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
method_name = method.__name__
if method_name in self._unix_socket_methods:
raise Exception("Method with this name (%s) is already exported." % method_name)
class wrapper(object):
def __init__(self, in_signature, out_signature):
self._in_signature = in_signature
self._out_signature = out_signature
def __call__(self, *args, **kwargs):
return method(*args, **kwargs)
self._unix_socket_methods[method_name] = wrapper(in_signature, out_signature)
def signal(self, method, out_signature):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
method_name = method.__name__
if method_name in self._unix_socket_methods:
raise Exception("Method with this name (%s) is already exported." % method_name)
class wrapper(object):
def __init__(self, out_signature):
self._out_signature = out_signature
def __call__(self, *args, **kwargs):
return method(*args, **kwargs)
self._unix_socket_methods[method_name] = wrapper(out_signature)
self._signals.add(method_name)
def send_signal(self, signal, *args, **kwargs):
if not signal in self._signals:
raise Exception("Signal '%s' doesn't exist." % signal)
for p in self._socket_signal_paths:
log.debug("Sending signal on socket %s" % p)
try:
s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
s.setblocking(False)
s.connect(p)
self._send_data(s, {"jsonrpc": "2.0", "method": signal, "params": args})
s.close()
except OSError as e:
log.warning("Error while sending signal '%s' to socket '%s': %s" % (signal, p, e))
def register_signal_path(self, path):
self._socket_signal_paths.append(path)
def _construct_socket_object(self):
if self._socket_path:
if os.path.exists(self._socket_path):
os.unlink(self._socket_path)
self._socket_object = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
self._socket_object.bind(self._socket_path)
self._socket_object.listen(self._connections_backlog)
os.chown(self._socket_path, self._ownership[0], self._ownership[1])
if self._permissions:
os.chmod(self._socket_path, self._permissions)
def start(self):
if self.running():
return
self.stop()
self._construct_socket_object()
def stop(self):
if self._socket_object:
self._socket_object.close()
def _send_data(self, s, data):
log.debug("Sending socket data: %s)" % data)
try:
s.send(json.dumps(data).encode("utf-8"))
except Exception as e:
log.warning("Failed to send data '%s': %s" % (data, e))
def _create_response(self, data, id, error=False):
res = {
"jsonrpc": "2.0",
"id": id
}
if error:
res["error"] = data
else:
res["result"] = data
return res
def _create_error_responce(self, code, message, id=None, data=None):
return self._create_response({
"code": code,
"message": message,
"data": data,
}, error=True, id=id)
def _create_result_response(self, result, id):
return self._create_response(result, id)
def _check_id(self, data):
if data.get("id"):
return data
return None
def _process_request(self, req):
if type(req) != dict or req.get("jsonrpc") != "2.0" or not req.get("method"):
return self._create_error_responce(-32600, "Invalid Request")
id = req.get("id")
ret = None
if req["method"] not in self._unix_socket_methods:
return self._check_id(self._create_error_responce(-32601, "Method not found", id))
try:
if not req.get("params"):
ret = self._unix_socket_methods[req["method"]]()
elif type(req["params"]) in (list, tuple):
ret = self._unix_socket_methods[req["method"]](*req["params"])
elif type(req["params"]) == dict:
ret = self._unix_socket_methods[req["method"]](**req["params"])
else:
return self._check_id(self._create_error_responce(-32600, "Invalid Request", id))
except TypeError as e:
return self._check_id(self._create_error_responce(-32602, "Invalid params", id, str(e)))
except Exception as e:
return self._check_id(self._create_error_responce(1, "Error", id, str(e)))
return self._check_id(self._create_result_response(ret, id))
def period_check(self):
"""
Periodically checks socket object for new calls. This allows to function without special thread.
Interface is according JSON-RPC 2.0 Specification (see https://www.jsonrpc.org/specification)
Example calls:
printf '[{"jsonrpc": "2.0", "method": "active_profile", "id": 1}, {"jsonrpc": "2.0", "method": "profiles", "id": 2}]' | nc -U /run/tuned/tuned.sock
printf '{"jsonrpc": "2.0", "method": "switch_profile", "params": {"profile_name": "balanced"}, "id": 1}' | nc -U /run/tuned/tuned.sock
"""
if not self.running():
return
while True:
r, _, _ = select.select([self._socket_object], (), (), 0)
if r:
conn, _ = self._socket_object.accept()
try:
data = ""
while True:
rec_data = conn.recv(4096).decode()
if not rec_data:
break
data += rec_data
except Exception as e:
log.error("Failed to load data of message: %s" % e)
continue
if data:
try:
data = json.loads(data)
except Exception as e:
log.error("Failed to load json data '%s': %s" % (data, e))
self._send_data(conn, self._create_error_responce(-32700, "Parse error", str(e)))
continue
if type(data) not in (tuple, list, dict):
log.error("Wrong format of call")
self._send_data(conn, self._create_error_responce(-32700, "Parse error", str(e)))
continue
if type(data) in (tuple, list):
if len(data) == 0:
self._send_data(conn, self._create_error_responce(-32600, "Invalid Request", str(e)))
continue
res = []
for req in data:
r = self._process_request(req)
if r:
res.append(r)
if res:
self._send_data(conn, res)
else:
res = self._process_request(data)
if r:
self._send_data(conn, res)
else:
return
exports/dbus_exporter_with_properties.py 0000644 00000006052 15035135375 0015030 0 ustar 00 from inspect import ismethod
from dbus.service import method, signal
from dbus import PROPERTIES_IFACE
from dbus.exceptions import DBusException
from tuned.exports.dbus_exporter import DBusExporter
class DBusExporterWithProperties(DBusExporter):
def __init__(self, bus_name, interface_name, object_name, namespace):
super(DBusExporterWithProperties, self).__init__(bus_name, interface_name, object_name, namespace)
self._property_setters = {}
self._property_getters = {}
def Get(_, interface_name, property_name):
if interface_name != self._interface_name:
raise DBusException("Unknown interface: %s" % interface_name)
if property_name not in self._property_getters:
raise DBusException("No such property: %s" % property_name)
getter = self._property_getters[property_name]
return getter()
def Set(_, interface_name, property_name, value):
if interface_name != self._interface_name:
raise DBusException("Unknown interface: %s" % interface_name)
if property_name not in self._property_setters:
raise DBusException("No such property: %s" % property_name)
setter = self._property_setters[property_name]
setter(value)
def GetAll(_, interface_name):
if interface_name != self._interface_name:
raise DBusException("Unknown interface: %s" % interface_name)
return {name: getter() for name, getter in self._property_getters.items()}
def PropertiesChanged(_, interface_name, changed_properties, invalidated_properties):
if interface_name != self._interface_name:
raise DBusException("Unknown interface: %s" % interface_name)
self._dbus_methods["Get"] = method(PROPERTIES_IFACE, in_signature="ss", out_signature="v")(Get)
self._dbus_methods["Set"] = method(PROPERTIES_IFACE, in_signature="ssv")(Set)
self._dbus_methods["GetAll"] = method(PROPERTIES_IFACE, in_signature="s", out_signature="a{sv}")(GetAll)
self._dbus_methods["PropertiesChanged"] = signal(PROPERTIES_IFACE, signature="sa{sv}as")(PropertiesChanged)
self._signals.add("PropertiesChanged")
def property_changed(self, property_name, value):
self.send_signal("PropertiesChanged", self._interface_name, {property_name: value}, {})
def property_getter(self, method, property_name):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
if property_name in self._property_getters:
raise Exception("A getter for this property is already registered.")
self._property_getters[property_name] = method
def property_setter(self, method, property_name):
if not ismethod(method):
raise Exception("Only bound methods can be exported.")
if property_name in self._property_setters:
raise Exception("A setter for this property is already registered.")
self._property_setters[property_name] = method
exports/controller.py 0000644 00000006722 15035135375 0011023 0 ustar 00 from . import interfaces
import inspect
import tuned.patterns
class ExportsController(tuned.patterns.Singleton):
"""
Controls and manages object interface exporting.
"""
def __init__(self):
super(ExportsController, self).__init__()
self._exporters = []
self._objects = []
self._exports_initialized = False
def register_exporter(self, instance):
"""Register objects exporter."""
self._exporters.append(instance)
def register_object(self, instance):
"""Register object to be exported."""
self._objects.append(instance)
def _is_exportable_method(self, method):
"""Check if method was marked with @exports.export wrapper."""
return inspect.ismethod(method) and hasattr(method, "export_params")
def _is_exportable_signal(self, method):
"""Check if method was marked with @exports.signal wrapper."""
return inspect.ismethod(method) and hasattr(method, "signal_params")
def _is_exportable_getter(self, method):
"""Check if method was marked with @exports.get_property wrapper."""
return inspect.ismethod(method) and hasattr(method, "property_get_params")
def _is_exportable_setter(self, method):
"""Check if method was marked with @exports.set_property wrapper."""
return inspect.ismethod(method) and hasattr(method, "property_set_params")
def _export_method(self, method):
"""Register method to all exporters."""
for exporter in self._exporters:
args = method.export_params[0]
kwargs = method.export_params[1]
exporter.export(method, *args, **kwargs)
def _export_signal(self, method):
"""Register signal to all exporters."""
for exporter in self._exporters:
args = method.signal_params[0]
kwargs = method.signal_params[1]
exporter.signal(method, *args, **kwargs)
def _export_getter(self, method):
"""Register property getter to all exporters."""
for exporter in self._exporters:
args = method.property_get_params[0]
kwargs = method.property_get_params[1]
exporter.property_getter(method, *args, **kwargs)
def _export_setter(self, method):
"""Register property setter to all exporters."""
for exporter in self._exporters:
args = method.property_set_params[0]
kwargs = method.property_set_params[1]
exporter.property_setter(method, *args, **kwargs)
def send_signal(self, signal, *args, **kwargs):
"""Register signal to all exporters."""
for exporter in self._exporters:
exporter.send_signal(signal, *args, **kwargs)
def property_changed(self, *args, **kwargs):
for exporter in self._exporters:
exporter.property_changed(*args, **kwargs)
def period_check(self):
"""Allows to perform checks on exporters without special thread."""
for exporter in self._exporters:
exporter.period_check()
def _initialize_exports(self):
if self._exports_initialized:
return
for instance in self._objects:
for name, method in inspect.getmembers(instance, self._is_exportable_method):
self._export_method(method)
for name, method in inspect.getmembers(instance, self._is_exportable_signal):
self._export_signal(method)
for name, method in inspect.getmembers(instance, self._is_exportable_getter):
self._export_getter(method)
for name, method in inspect.getmembers(instance, self._is_exportable_setter):
self._export_setter(method)
self._exports_initialized = True
def start(self):
"""Start the exports."""
self._initialize_exports()
for exporter in self._exporters:
exporter.start()
def stop(self):
"""Stop the exports."""
for exporter in self._exporters:
exporter.stop()