多线程在mac平台和linux平台执行效果不一样
											python版本:python2脚本功能:检查一段ip地址是否可以ping通,使用了多线程
问题:在linux平台运行脚本很快执行完毕,但在mac平台运行很慢,通过在lock.acquire()获得锁和lock.release()释放锁后打印记录跟踪进程执行过程了,在mac上运行时基本上是每隔1秒打印一次,在linux平台执行时基本1秒就打印完毕了
代码
程序代码:import threading,sys,os,re,time
inused = []
notused = []
inusedcount = 0
notusedcount = 0
lock = threading.Lock()
class ipcheck(threading.Thread):
    def __init__(self,ip,cmd):
        threading.Thread.__init__(self)
        self.ip = ip
        self.cmd = cmd
    def run(self):
        code = os.system(self.cmd)
        global inusedcount
        global notusedcount
        global inused
        global notused
        if code == 0:
            lock.acquire()
            inused.append(self.ip)
            inusedcount += 1
            lock.release()
        else:
            lock.acquire()
            notused.append(self.ip)
            notusedcount += 1
            lock.release()										
					
	


											
	    

	