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scripts: Move logic in prep_benchmarks.sh into a function

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This prepares for adding the ability to undo the setup.

Change-Id: Ie3fa3a76715663d9785a1d2f9d88ab20e0d07dce
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/393829
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
This commit is contained in:
Ben Walker 2018-01-05 14:53:30 -07:00 committed by Jim Harris
parent b21fad1a80
commit 5318d33318
1 changed files with 38 additions and 34 deletions
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72
scripts/prep_benchmarks.sh
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@ -1,41 +1,45 @@
#!/usr/bin/env bash #!/usr/bin/env bash
echo -n "Placing all CPUs in performance mode..." function configure_performance() {
for governor in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo -n "Placing all CPUs in performance mode..."
echo -n performance > $governor for governor in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
done echo -n performance > $governor
echo "Done" done
echo "Done"
echo -n "Disabling irqbalance service..." echo -n "Disabling irqbalance service..."
service irqbalance stop 2> /dev/null service irqbalance stop 2> /dev/null
echo "Done" echo "Done"
echo -n "Moving all interrupts off of core 0..." echo -n "Moving all interrupts off of core 0..."
count=`expr $(nproc) / 4` count=`expr $(nproc) / 4`
cpumask="e" cpumask="e"
for ((i=1; i<$count; i++)); do for ((i=1; i<$count; i++)); do
if [ `expr $i % 8` -eq 0 ]; then if [ `expr $i % 8` -eq 0 ]; then
cpumask=",$cpumask" cpumask=",$cpumask"
fi fi
cpumask="f$cpumask" cpumask="f$cpumask"
done done
for file in /proc/irq/*/smp_affinity; do for file in /proc/irq/*/smp_affinity; do
echo "$cpumask" > $file 2> /dev/null echo "$cpumask" > $file 2> /dev/null
done done
echo "Done" echo "Done"
echo -n "Configuring kernel blk-mq for for NVMe SSDs..." echo -n "Configuring kernel blk-mq for for NVMe SSDs..."
for queue in /sys/block/nvme*n*/queue; do for queue in /sys/block/nvme*n*/queue; do
if [ -f "$queue/nomerges" ]; then if [ -f "$queue/nomerges" ]; then
echo "1" > $queue/nomerges echo "1" > $queue/nomerges
fi fi
if [ -f "$queue/io_poll" ]; then if [ -f "$queue/io_poll" ]; then
echo "1" > $queue/io_poll echo "1" > $queue/io_poll
fi fi
if [ -f "$queue/io_poll_delay" ]; then if [ -f "$queue/io_poll_delay" ]; then
echo "-1" > $queue/io_poll_delay echo "-1" > $queue/io_poll_delay
fi fi
done done
echo "Done" echo "Done"
}
configure_performance