import multiprocessing as mp
import numpy as np
import time

start = time.perf_counter()

def do_something():
    print(f'Sleeping {1} second(s)...')
    print('sleep 1 sec')
    time.sleep(1)
    print('Done!')


if __name__ == '__main__':
    p1 = mp.Process(target=do_something)
    p2 = mp.Process(target=do_something)

    p1.start()
    p2.start()

    p1.join()
    p2.join()


finish = time.perf_counter()

print(f'Took {round(finish-start,2)} seconds.')