#!/bin/bash #本脚本用于调节CPU电源模式 #修改电源模式的路径 path_0=/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor path_1=/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor path_2=/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor path_3=/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor #判断权限是否足够 if [ -w $path_0 ] && [ -w $path_1 ] && [ -w $path_2 ] && [ -w $path_3 ]; then #解析输入参数 case $1 in 1) echo "[Performance] 高性能模式" mode=Performance ;; 2) echo "[ondemand] 自动调整" mode=ondemand ;; 3) echo "[powersave] 低功耗模式" mode=powersave ;; -r) echo "[CPU 0]" `cat $path_0` echo "[CPU 1]" `cat $path_1` echo "[CPU 2]" `cat $path_2` echo "[CPU 3]" `cat $path_3` exit ;; -h) echo "输入参数： [performance] 1 [ondemand ] 2 [powersave] 3 [读取模式 ] -r" exit ;; *) echo "Erro: 输入参数错误" exit ;; esac #修改电源模式 echo $mode > $path_0 echo $mode > $path_1 echo $mode > $path_2 echo $mode > $path_3 else echo "Erro: 权限不足" fi [1] 保存成脚本文件 performance.sh
[2] 赋予执行权限，以root身份运行(或者你有scaling_governor节点的权限)
[3-1] ./performance.sh 1 #高性能模式运行
[3-2] ./performance.sh -h #显示帮助