[ltp] this script controles on my t60 the cpufunctions i use

Florian Manschwetus linux-thinkpad@linux-thinkpad.org
Wed, 16 Aug 2006 12:05:53 +0200


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ok it is a little bit bash.
use it or read it for informations how it work
or just skip it ;)
florian

#!/bin/bash

CPU1_STATE=$(cat /sys/devices/system/cpu/cpu1/online)
echo state read from cpu

if [[ ${1} == 0 && ${CPU1_STATE} == 1 ]]; then
         echo disabling
         CPU1_GOVERNOR=$(cat 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor)
         echo governor readed
         echo -e "CPU1_GOVERNOR=${CPU1_GOVERNOR}\n" > /tmp/core1_state
         echo state saved
         echo userspace > 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
         echo 0 > /sys/devices/system/cpu/cpu1/online
         echo cpu now offline
fi

if [[ ${1} == 1 && ${CPU1_STATE} == 0 ]]; then
         echo enabling
         source /tmp/core1_state
         echo state read
         rm /tmp/core1_state
         echo file deleted
         echo 1 > /sys/devices/system/cpu/cpu1/online
         echo cpu now online
         echo ${CPU1_GOVERNOR} > 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
         echo governor restored
fi

if [ ${1} == "reset" ]; then
         echo reset
         if [ ${2} == "all" ]; then
                 echo ondemand > 
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
         fi
         if [ ${CPU1_STATE} == 0 ]; then
                 echo cpu is down
                 echo 1 > /sys/devices/system/cpu/cpu1/online
                 echo cpu now online
         fi
         echo setting governor
         echo ondemand > 
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor
         echo governor set to ondemand
fi

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