mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-02-23 14:35:12 +07:00
e78d0eabef
Based on 1 normalized pattern(s): 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 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.022316957@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
88 lines
3.4 KiB
Bash
88 lines
3.4 KiB
Bash
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
|
|
# Author/Copyright(c): 2009, Thomas Renninger <trenn@suse.de>, Novell Inc.
|
|
|
|
# Ondemand up_threshold and sampling rate test script for cpufreq-bench
|
|
# mircobenchmark.
|
|
# Modify the general variables at the top or extend or copy out parts
|
|
# if you want to test other things
|
|
#
|
|
|
|
# Default with latest kernels is 95, before micro account patches
|
|
# it was 80, cmp. with git commit 808009131046b62ac434dbc796
|
|
UP_THRESHOLD="60 80 95"
|
|
# Depending on the kernel and the HW sampling rate could be restricted
|
|
# and cannot be set that low...
|
|
# E.g. before git commit cef9615a853ebc4972084f7 one could only set
|
|
# min sampling rate of 80000 if CONFIG_HZ=250
|
|
SAMPLING_RATE="20000 80000"
|
|
|
|
function measure()
|
|
{
|
|
local -i up_threshold_set
|
|
local -i sampling_rate_set
|
|
|
|
for up_threshold in $UP_THRESHOLD;do
|
|
for sampling_rate in $SAMPLING_RATE;do
|
|
# Set values in sysfs
|
|
echo $up_threshold >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
|
|
echo $sampling_rate >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
|
|
up_threshold_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold)
|
|
sampling_rate_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate)
|
|
|
|
# Verify set values in sysfs
|
|
if [ ${up_threshold_set} -eq ${up_threshold} ];then
|
|
echo "up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
|
|
else
|
|
echo "WARNING: Tried to set up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
|
|
fi
|
|
if [ ${sampling_rate_set} -eq ${sampling_rate} ];then
|
|
echo "sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
|
|
else
|
|
echo "WARNING: Tried to set sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
|
|
fi
|
|
|
|
# Benchmark
|
|
cpufreq-bench -o /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}
|
|
done
|
|
done
|
|
}
|
|
|
|
function create_plots()
|
|
{
|
|
local command
|
|
|
|
for up_threshold in $UP_THRESHOLD;do
|
|
command="cpufreq-bench_plot.sh -o \"sampling_rate_${SAMPLING_RATE}_up_threshold_${up_threshold}\" -t \"Ondemand sampling_rate: ${SAMPLING_RATE} comparison - Up_threshold: $up_threshold %\""
|
|
for sampling_rate in $SAMPLING_RATE;do
|
|
command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"sampling_rate = $sampling_rate\""
|
|
done
|
|
echo $command
|
|
eval "$command"
|
|
echo
|
|
done
|
|
|
|
for sampling_rate in $SAMPLING_RATE;do
|
|
command="cpufreq-bench_plot.sh -o \"up_threshold_${UP_THRESHOLD}_sampling_rate_${sampling_rate}\" -t \"Ondemand up_threshold: ${UP_THRESHOLD} % comparison - sampling_rate: $sampling_rate\""
|
|
for up_threshold in $UP_THRESHOLD;do
|
|
command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold\""
|
|
done
|
|
echo $command
|
|
eval "$command"
|
|
echo
|
|
done
|
|
|
|
command="cpufreq-bench_plot.sh -o \"up_threshold_${UP_THRESHOLD}_sampling_rate_${SAMPLING_RATE}\" -t \"Ondemand up_threshold: ${UP_THRESHOLD} and sampling_rate ${SAMPLING_RATE} comparison\""
|
|
for sampling_rate in $SAMPLING_RATE;do
|
|
for up_threshold in $UP_THRESHOLD;do
|
|
command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold - sampling_rate = $sampling_rate\""
|
|
done
|
|
done
|
|
echo "$command"
|
|
eval "$command"
|
|
}
|
|
|
|
measure
|
|
create_plots |