add new enterprise-storage profile
Starts out as a clone of throughput-performance profile, but takes the additional steps to disable barriers on data volumes and increase readahead values. Signed-off-by: Jarod Wilson <jarod@redhat.com>
This commit is contained in:
Jarod Wilson
parent
bdd933246b
commit
bdce7eb69d
3 changed files with 232 additions and 0 deletions
169
tune-profiles/enterprise-storage/ktune.sh
Executable file
169
tune-profiles/enterprise-storage/ktune.sh
Executable file
|
|
@ -0,0 +1,169 @@
|
|||
#!/bin/sh
|
||||
|
||||
VAR_SUBSYS_KTUNE="/var/lock/subsys/ktune"
|
||||
|
||||
CPUSPEED_SAVE_FILE="/var/run/tuned/ktune-cpuspeed.save"
|
||||
CPUSPEED_ORIG_GOV="/var/run/tuned/ktune-cpuspeed-governor-%s.save"
|
||||
CPUSPEED_STARTED="/var/run/tuned/ktune-cpuspeed-started"
|
||||
CPUSPEED_CFG="/etc/sysconfig/cpuspeed"
|
||||
CPUSPEED_INIT="/etc/init.d/cpuspeed"
|
||||
CPUS="$(ls -d1 /sys/devices/system/cpu/cpu* | sed 's;^.*/;;' | grep "cpu[0-9]\+")"
|
||||
|
||||
THP_ENABLE="/sys/kernel/mm/redhat_transparent_hugepage/enabled"
|
||||
THP_SAVE="/var/run/tuned/ktune-thp.save"
|
||||
|
||||
start() {
|
||||
# Enable performance CPU governor (prefer cpuspeed), if freq scaling is supported
|
||||
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=performance/g' $CPUSPEED_SAVE_FILE > $CPUSPEED_CFG
|
||||
fi
|
||||
|
||||
service cpuspeed status >/dev/null 2>&1
|
||||
[ $? -eq 3 ] && touch $CPUSPEED_STARTED || rm -f $CPUSPEED_STARTED
|
||||
|
||||
service cpuspeed restart >/dev/null 2>&1
|
||||
elif [ -e /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor ]; then
|
||||
echo >/dev/stderr
|
||||
echo "Suggestion: install 'cpuspeed' package to get best performance and latency." >/dev/stderr
|
||||
echo "Falling back to 'performance' scaling governor for all CPUs." >/dev/stderr
|
||||
echo >/dev/stderr
|
||||
|
||||
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 performance > $gov_file
|
||||
fi
|
||||
done
|
||||
fi
|
||||
|
||||
# Make sure transparent hugepages are enabled (if supported)
|
||||
if [ -e $THP_ENABLE ]; then
|
||||
cut -f2 -d'[' $THP_ENABLE | cut -f1 -d']' > $THP_SAVE
|
||||
(echo always > $THP_ENABLE) > /dev/null 2>&1
|
||||
fi
|
||||
|
||||
# Find non-root and non-boot partitions, disable barriers on them
|
||||
rootvol=$(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)
|
||||
for vol in $nobarriervols
|
||||
do
|
||||
/bin/mount -o remount,nobarrier $vol > /dev/null 2>&1
|
||||
done
|
||||
|
||||
# Increase the readahead value on all volumes
|
||||
for d in /sys/block/{sd,cciss}*/queue/read_ahead_kb
|
||||
do
|
||||
echo 512 > $d > /dev/null 2>&1
|
||||
done
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
stop() {
|
||||
# Re-enable previous 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 [ -e $CPUSPEED_STARTED ]; then
|
||||
rm -f $CPUSPEED_STARTED
|
||||
service cpuspeed stop >/dev/null 2>&1
|
||||
else
|
||||
service cpuspeed restart >/dev/null 2>&1
|
||||
fi
|
||||
elif [ -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
|
||||
|
||||
# Restore transparent hugepages setting
|
||||
if [ -e $THP_SAVE ]; then
|
||||
(echo $(cat $THP_SAVE) > $THP_ENABLE) > /dev/null 2>&1
|
||||
rm -f $THP_SAVE
|
||||
fi
|
||||
|
||||
# Find non-root and non-boot partitions, re-enable barriers
|
||||
rootvol=$(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)
|
||||
for vol in $nobarriervols
|
||||
do
|
||||
/bin/mount -o remount,barrier $vol > /dev/null 2>&1
|
||||
done
|
||||
|
||||
# Reset default readahead value on all volumes
|
||||
for d in /sys/block/{sd,cciss}*/queue/read_ahead_kb
|
||||
do
|
||||
echo 128 > $d > /dev/null 2>&1
|
||||
done
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
reload() {
|
||||
start
|
||||
}
|
||||
|
||||
status() {
|
||||
return 0
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
start)
|
||||
[ -f "$VAR_SUBSYS_KTUNE" ] && exit 0
|
||||
start
|
||||
RETVAL=$?
|
||||
;;
|
||||
stop)
|
||||
[ -f "$VAR_SUBSYS_KTUNE" ] || exit 0
|
||||
stop
|
||||
RETVAL=$?
|
||||
;;
|
||||
reload)
|
||||
[ -f "$VAR_SUBSYS_KTUNE" ] && reload
|
||||
RETVAL=$?
|
||||
;;
|
||||
restart|force-reload)
|
||||
[ -f "$VAR_SUBSYS_KTUNE" ] && stop
|
||||
start
|
||||
RETVAL=$?
|
||||
;;
|
||||
condrestart|try-restart)
|
||||
[ -f "$VAR_SUBSYS_KTUNE" ] || exit 0
|
||||
stop
|
||||
start
|
||||
RETVAL=$?
|
||||
;;
|
||||
status)
|
||||
status
|
||||
RETVAL=$?
|
||||
;;
|
||||
*)
|
||||
echo $"Usage: $0 {start|stop|restart|condrestart|status}"
|
||||
RETVAL=2
|
||||
;;
|
||||
esac
|
||||
27
tune-profiles/enterprise-storage/ktune.sysconfig
Normal file
27
tune-profiles/enterprise-storage/ktune.sysconfig
Normal file
|
|
@ -0,0 +1,27 @@
|
|||
# ktune service configuration
|
||||
|
||||
# This is the ktune sysctl file. You can comment this out to prevent ktune
|
||||
# from applying its sysctl settings.
|
||||
#SYSCTL="/etc/sysctl.ktune"
|
||||
|
||||
# Use *.conf files in the ktune configuration directory /etc/ktune.d.
|
||||
# Value: yes|no, default: yes
|
||||
# It is useful if you want to load settings from additional files. Set this to
|
||||
# no if you to prevent ktune from using these additional files.
|
||||
USE_KTUNE_D="yes"
|
||||
|
||||
# This is the custom sysctl configuration file. Any settings in this file will
|
||||
# be applied after the ktune settings, overriding them. Comment this out to
|
||||
# use only the ktune settings.
|
||||
SYSCTL_POST="/etc/sysctl.conf"
|
||||
|
||||
# This is the I/O scheduler ktune will use. This will *not* override anything
|
||||
# explicitly set on the kernel command line, nor will it change the scheduler
|
||||
# for any block device that is using a non-default scheduler when ktune starts.
|
||||
# You should probably leave this on "deadline", but "as", "cfq", and "noop" are
|
||||
# also legal values. Comment this out to prevent ktune from changing I/O
|
||||
# scheduler settings.
|
||||
ELEVATOR="deadline"
|
||||
|
||||
# These are the devices, that should be tuned with the ELEVATOR
|
||||
ELEVATOR_TUNE_DEVS="/sys/block/{sd,cciss}*/queue/scheduler"
|
||||
36
tune-profiles/enterprise-storage/sysctl.ktune
Normal file
36
tune-profiles/enterprise-storage/sysctl.ktune
Normal file
|
|
@ -0,0 +1,36 @@
|
|||
# ktune sysctl settings for rhel6 servers with enterprise-class
|
||||
# storage, maximizing i/o throughput
|
||||
#
|
||||
# Minimal preemption granularity for CPU-bound tasks:
|
||||
# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
|
||||
kernel.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.
|
||||
kernel.sched_wakeup_granularity_ns = 15000000
|
||||
|
||||
# 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 = 15
|
||||
|
||||
# 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
|
||||
Loading…
Reference in a new issue