Python多线程效率不高

Question

我尝试比较许多处理器和许多编程语言的速度，但我在 python 中遇到了多线程问题：

    def main(argv):
    start_time = time.time()

    case_number = 2
    nb_thread = 2
    t = [0] * nb_thread
    for i in range(0, nb_thread):
        t[i] = Thread(target=resolve, args=("TREAD " + str(i),)) // resolve is a mathematic problem (about 6 seconds to resolve it)
        t[i].start()

    t[0].join()
    t[1].join()
    print("--- %s seconds ---" % (time.time() - start_time))


if __name__ == '__main__':
    main(sys.argv)

1 个线程和 1 个 resolve()=> 6 秒，2 个线程和 2 个 resolve() => 12 秒

resolve() 中的 print() 你在这里看不到，我读到了：

D:\Dev\python\Sudoku>python main.py txt.txt
TREAD 0   <<BEGUIN>>
TREAD 1   <<BEGUIN>>
TREAD 0   <<END>>
TREAD 1   <<END>>
--- 12.335727453231812 seconds ---

似乎有什么我不明白的：/ 谢谢！

Answer 1

realpython.com/python-gil

有趣的谢谢！