set all cpu governers to performance mode

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#!/bin/bash

# sudo apt-get install cpufrequtils

if [[ $EUID -ne 0 ]]; then
   echo "sudo me" 
   exit 1
fi

command -v cpufreq-info >/dev/null 2>&1 || { echo >&2 "cpufrequtils not found"; exit 1; }

cores(){
    cat /proc/cpuinfo | grep processor | wc -l
}

eval "COUNTER=$(cores)"
until [  $COUNTER -lt 1 ]; do
    let COUNTER-=1
    eval "cpufreq-set -g performance -c ${COUNTER}"
done

cpufreq-info