#!/bin/sh path_mc="/sys/devices/system/cpu/sched_mc_power_savings" path_smt="/sys/devices/system/cpu/sched_smt_power_savings" val=0 case "$1" in true) echo "**sched policy powersave ON" val=1 ;; false) echo "**sched policy powersave OFF" val=0 ;; esac # Based on the values (1-enable, 0-disable) for these controls, # sched groups cpu power will be determined for different domains. # When power savings policy is enabled and under light load conditions, # scheduler will minimize the physical packages/cpu cores carrying the # load and thus conserving power if [ -w "$path_mc" ] ; then echo $val > $path_mc fi if [ -w "$path_smt" ] ; then echo $val > $path_smt fi exit 0