for cpu_dir in /sys/devices/system/cpu/cpu[0-9]*
do
	online_file="$cpu_dir"/online
	[ -f "$online_file" ] && [ "$(cat "$online_file")" -eq 0 ] && continue

	file="$cpu_dir"/cpufreq/scaling_governor
	[ -f "$file" ] && echo "performance" > "$file"
done

 "sysctl" "-w" "net.ipv4.ping_group_range=0 128"
 "stress-ng" "--timeout" "60" "--times" "--verify" "--metrics-brief" "--ping-sock" "128"