cpufreq-systemd/cpufreq-systemd.sh

   1 #!/bin/bash
   2
   3 # source application-specific settings
   4 [ -f /etc/conf.d/cpufreq ] && . /etc/conf.d/cpufreq
   5
   6 params=""
   7 if [ -n "$governor" ]; then
   8         mod="cpufreq_$governor"
   9         params="-g $governor"
  10         grep -qw "$governor" /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors || modprobe -q $mod
  11         if [ $? -eq 0 ]; then
  12                 if [ "$min_freq" != "" ]; then
  13                         params="$params -d $min_freq"
  14                 fi
  15                 if [ "$max_freq" != "" ]; then
  16                         params="$params -u $max_freq"
  17                 fi
  18         else
  19                 # Cannot load governor module
  20                 exit -1
  21         fi
  22 fi
  23
  24 if [ "$params" != "" ]; then
  25         CPUS=$(sed -ne 's/^processor.* \([0-9]\+\)$/\1/p' /proc/cpuinfo)
  26         for cpu in $CPUS; do
  27                 cpufreq-set -c $cpu $params
  28                 if [ "$freq" != "" ]; then
  29                         cpufreq-set -c $cpu -f $freq
  30                 fi
  31         done
  32 else
  33         # Invalid configuration in /etc/conf.d/cpufreq
  34         exit -1
  35 fi
  36
  37 exit 0