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Text File  |  2009-10-06  |  1KB  |  28 lines
  1. #! /bin/sh
  2. # 
  3. # Laptop mode tools module: Scheduler tunables for multi-socket/multi-core systems.
  4. #
  5.  
  6. if [ x$CONTROL_SCHED_MC_POWER_SAVINGS = x1 ] ; then
  7.     if [ $ON_AC -eq 1 ]; then
  8.         $LM_VERBOSE && echo "On AC power: setting scheduler power saving to 0." >> $OUTPUT
  9.         if [ -w /sys/devices/system/cpu/sched_mc_power_savings ]; then
  10.             echo 0 > /sys/devices/system/cpu/sched_mc_power_savings 
  11.             $LM_VERBOSE && echo "Scheduler power save mode disabled." >> $OUTPUT
  12.         else
  13.             $LM_VERBOSE && echo "Scheduler power saving is not available." >> $OUTPUT
  14.         fi
  15.     else
  16.         $LM_VERBOSE && echo "On battery: setting scheduler power saving to 1." >> $OUTPUT
  17.         if [ -w /sys/devices/system/cpu/sched_mc_power_savings ]; then
  18.             echo 2 > /sys/devices/system/cpu/sched_mc_power_savings 
  19.             $LM_VERBOSE && echo "Scheduler power save mode enabled." >> $OUTPUT
  20.         else
  21.             $LM_VERBOSE && echo "Scheduler power saving is not available." >> $OUTPUT
  22.         fi
  23.  
  24.     fi
  25. else
  26.     $LM_VERBOSE && echo "Scheduler power setting is disabled." >> $OUTPUT
  27. fi
  28.