from multiprocessing import Process
from time import time
import os

def f(num):
    a = num*num*num*num
    process_id = os.getpid()
    print('id: ' + str(process_id))

if __name__ == '__main__':
    board_index = [1,2,3,4,5,6]
    processes = []
    t1 = time()
    for i in range(len(board_index)):
        p = Process(target=f, args=(board_index[i],))
        processes.append(p)
        p.start()
        p.join()
    t2 = time()

    print('ez a multiprocesses eredmény: ' + str(t2-t1))
    t3 = time()
    for i in range(len(board_index)):
        f(board_index[i])
    t4 = time()
    print('ez a sima: ' + str(t4-t3))