Python多处理 - 如何在进程完成后释放内存？

from multiprocessing import Process

def my_function(arg1, arg2):
    # 执行任务

if __name__ == '__main__':
    process = Process(target=my_function, args=(arg1, arg2))
    process.start()
    process.join()

from multiprocessing import Pool

def my_function(arg):
    # 执行任务

if __name__ == '__main__':
    with Pool(processes=4) as pool:
        results = pool.map(my_function, args_list)

del variable_name

import gc

gc.collect()