nice_test.py

import time
import os


def compute():
    array = []
    for i in range(10):
        start = time.perf_counter()
        for i in range(1000000):
            x = 2*2
        array.append(time.perf_counter() - start)
    return sum(array) / len(array)

  
# start test 1
t1 = compute()
# change niceness
os.nice(19)
# Start test 2
t2 = compute()
# result
print("Test 1", t1, "sec")
print("Test 2", t2, "sec")
print("Diff", t2/t1, "times")