tools/power/cpupower/bench/cpufreq-bench_script.sh

   1 #!/bin/bash
   2
   3 # This program is free software: you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2, or (at your option)
   6 # any later version.
   7
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  16 # 02110-1301, USA.
  17
  18 # Author/Copyright(c): 2009, Thomas Renninger <trenn@suse.de>, Novell Inc.
  19
  20 # Ondemand up_threshold and sampling rate test script for cpufreq-bench
  21 # mircobenchmark.
  22 # Modify the general variables at the top or extend or copy out parts
  23 # if you want to test other things
  24 #
  25
  26 # Default with latest kernels is 95, before micro account patches
  27 # it was 80, cmp. with git commit 808009131046b62ac434dbc796
  28 UP_THRESHOLD="60 80 95"
  29 # Depending on the kernel and the HW sampling rate could be restricted
  30 # and cannot be set that low...
  31 # E.g. before git commit cef9615a853ebc4972084f7 one could only set
  32 # min sampling rate of 80000 if CONFIG_HZ=250
  33 SAMPLING_RATE="20000 80000"
  34
  35 function measure()
  36 {
  37     local -i up_threshold_set
  38     local -i sampling_rate_set
  39
  40     for up_threshold in $UP_THRESHOLD;do
  41         for sampling_rate in $SAMPLING_RATE;do
  42             # Set values in sysfs
  43             echo $up_threshold >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
  44             echo $sampling_rate >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
  45             up_threshold_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold)
  46             sampling_rate_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate)
  47
  48             # Verify set values in sysfs
  49             if [ ${up_threshold_set} -eq ${up_threshold} ];then
  50                 echo "up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
  51             else
  52                 echo "WARNING: Tried to set up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
  53             fi
  54             if [ ${sampling_rate_set} -eq ${sampling_rate} ];then
  55                 echo "sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
  56             else
  57                 echo "WARNING: Tried to set sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
  58             fi
  59
  60             # Benchmark
  61             cpufreq-bench -o /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}
  62         done
  63     done
  64 }
  65
  66 function create_plots()
  67 {
  68     local command
  69
  70     for up_threshold in $UP_THRESHOLD;do
  71         command="cpufreq-bench_plot.sh -o \"sampling_rate_${SAMPLING_RATE}_up_threshold_${up_threshold}\" -t \"Ondemand sampling_rate: ${SAMPLING_RATE} comparison - Up_threshold: $up_threshold %\""
  72         for sampling_rate in $SAMPLING_RATE;do
  73             command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"sampling_rate = $sampling_rate\""
  74         done
  75         echo $command
  76         eval "$command"
  77         echo
  78     done
  79
  80     for sampling_rate in $SAMPLING_RATE;do
  81         command="cpufreq-bench_plot.sh -o \"up_threshold_${UP_THRESHOLD}_sampling_rate_${sampling_rate}\" -t \"Ondemand up_threshold: ${UP_THRESHOLD} % comparison - sampling_rate: $sampling_rate\""
  82         for up_threshold in $UP_THRESHOLD;do
  83             command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold\""
  84         done
  85         echo $command
  86         eval "$command"
  87         echo
  88     done
  89
  90     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\""
  91     for sampling_rate in $SAMPLING_RATE;do
  92         for up_threshold in $UP_THRESHOLD;do
  93             command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold - sampling_rate = $sampling_rate\""
  94         done
  95     done
  96     echo "$command"
  97     eval "$command"
  98 }
  99
 100 measure
 101 create_plots