这个就可以变频的，用下面的脚本设置成ondemand就行 代码: #!/bin/bash echoc() { case $1 in red) color=31;; green) color=32;; yellow) color=33;; blue) color=34;; purple) color=35;; white) color=37;; *) color=36;; esac echo -e "\033[;${color}m$2\033[0m" } function setup_cpu_governor_once() { local governor_lists=$1 for ((cpu_id=0;cpu_id<$cpu_count;cpu_id++));do echoc green "cpu: $cpu_id" for governor in $governor_lists;do available_governor=`cat /sys/devices/system/cpu/cpu$cpu_id/cpufreq/scaling_available_governors | grep -Eo $governor` if [ "$available_governor" = "" ];then continue else echoc purple " setting to $governor mode" echo $governor > /sys/devices/system/cpu/cpu$cpu_id/cpufreq/scaling_governor break fi done done } function dump_cpu_state() { echoc yellow "current CPU state" echoc green "ID\tfreq\t\tcurrent governor\tavailable_governor" for ((cpu_id=0;cpu_id<$cpu_count;cpu_id++));do current_freq=`cat /sys/devices/system/cpu/cpu$cpu_id/cpufreq/scaling_cur_freq` current_governor=`cat /sys/devices/system/cpu/cpu$cpu_id/cpufreq/scaling_governor` available_governor=`cat /sys/devices/system/cpu/cpu$cpu_id/cpufreq/scaling_available_governors` echoc purple "$cpu_id\t$current_freq\t\t$current_governor\t\t$available_governor" done } cpu_count=`cat /proc/cpuinfo | grep processor | wc -l` if [ $# -eq 0 ]; then dump_cpu_state elif [ $# -eq 1 ]; then setup_cpu_governor_once $1 sleep 1 dump_cpu_state fi
