surface-temperature.py

#!/usr/bin/env python3

import json
import subprocess
import time

cputool = '/home/hasse/.local/share/gnome-shell/extensions/[email protected]/src/cpufreqctl'

turbo_output = subprocess.check_output([cputool, 'turbo', 'get']).decode().strip()
if turbo_output != '0' and turbo_output != '1':
	print('Unexpected output: ' + turbo_output)
	exit(1)
turbo = turbo_output == '1'

mean_temperature = 80

MHZ_START = 'cpu MHz		: '

while True:
	with open('/proc/cpuinfo', 'r') as f:
		for line in f.readlines():
			if line.startswith(MHZ_START):
				mhz = float(line[len(MHZ_START):].strip())
				break

	sensors_output = subprocess.check_output('sensors -j', shell=True)
	sensors = json.loads(sensors_output)

	mean_temperature *= 0.85
	temperature = sensors['coretemp-isa-0000']['Package id 0']['temp1_input']
	mean_temperature += temperature * 0.15
	print('{}{}°C (current: {}°C)  @ {} Mhz\x1b[0m'.format(
		'\x1b[1;36m' if turbo else ('\x1b[1;33m' if mhz < 500 else ''),
		int(mean_temperature), int(temperature), int(round(mhz)))
	)
	if turbo:
		if mean_temperature > 85:
			subprocess.check_call([cputool, 'turbo', '0'])
			turbo = False
	else:
		if mean_temperature < 75:
			subprocess.check_call([cputool, 'turbo', '1'])
			turbo = True

	time.sleep(2)