A script to switch the governor if steam is running

powerswitch.sh

#!/bin/bash

GOVERNOR=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)

if [ $1 == "-d" ]
then
	while :
	do
		GOVERNOR=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)

		if [ -n "$(pgrep steam)" ] 
		then
			if [ $GOVERNOR == "schedutil" ] 
			then
				echo "Steam is running, switching to performance"
				sudo cpupower frequency-set -g performance || echo "Setting governor failed!"
			elif [ $GOVERNOR == "performance" ] 
			then
				continue
			else
				echo "Unknown governor, shutting down in panic!"
				exit 1
			fi
		else
			if [ $GOVERNOR == "schedutil" ] 
			then
				continue
			elif [ $GOVERNOR == "performance" ] 
			then
				echo "Steam is not running, switching to schedutil"
				sudo cpupower frequency-set -g schedutil || echo "Setting governor failed!"
			else
				echo "Unknown governor, shutting down in panic!"
				exit 1
			fi
		fi
		sleep 5
	done
	exit 0
fi


if [ $GOVERNOR == "performance" ] 
then
	echo "Switching to schedutil"
	sudo cpupower frequency-set -g schedutil || echo "Setting governor failed!"
elif [ $GOVERNOR == "schedutil" ] 
then
	echo "Switching to performance"
	sudo cpupower frequency-set -g performance || echo "Setting governor failed"
else 
	echo "Unknown governor, shutting down in panic"
fi

exit 0