如果要启动大量的子进程,可以用进程池的方式批量创建子进程:
#!/usr/bin/env python from multiprocessing import Pool import os, time, random def long_time_task(name): print 'Run task %s (%s)...' %(name, os.getpid()) start = time.time() time.sleep(random.random() * 3) end = time.time() print 'Task %s run %0.2f seconds.' % (name, (end - start)) if __name__=='__main__': print 'Parant process %s.' % os.getpid() p = Pool() for i in range(5): p.apply_async(long_time_task, args=(i,)) print 'Waiting for all subprocesses done...' p.close() p.join() print 'All subprocesses done.'
References
[1].http://www.liaoxuefeng.com/