A script to quickly and dirtyly manually manage Xeon CPU governor settings.

cpu-gov

#!/bin/bash

set_govs() {
    local mode=$1
    for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do 
        echo $mode | sudo tee $i
    done
}

get_govs() {
    for i in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do 
        cat $i
    done
}

main() {
    case $1 in
        print|get|show)
            get_govs
            return
            ;;
        s|sched|schedutil)
            set_govs schedutil
            return
            ;;
        p|perf|performance)
            set_govs performance
            return
            ;;
        save|power|powersave)
            set_govs powersave
            return
            ;;
        u|user|userspace)
            set_govs userspace
            return
            ;;
        o|d|demand|ondemand)
            set_govs ondemand
            return
            ;;
        c|con|conservative)
            set_govs conservative
            return
            ;;
        *)
            echo $0 'schedutil|performance|powersave|userspace|ondemand|conservative'
            echo 'https://www.kernel.org/doc/Documentation/cpu-freq/governors.txt'
            return
            ;;
    esac
}

main $@