win7下多进程问题

zk1878

在win7下写了个多进程的代码，发现最多只能fork 64个进程，linux下没发现有任何限制，以下是代码
for $i (1..300){
        $pid = fork;
        if($pid == 0){
                print 'pid:'.$$,", the $i process started\n";
                #sleep (3+int(rand(10)));
                exit 0;
        }
}
print "waitting --------\n";
print "process$p has exist\n" while(($p=wait)!=-1)

在win7下运行，发现只生成了64个子进程，这个大家有没碰过，是啥原因呢，windows系统限制么

sjdy521

Resource limits

In the eyes of the operating system, pseudo-processes created via the fork() emulation are simply threads in the same process. This means that any process-level limits imposed by the operating system apply to all pseudo-processes taken together. This includes any limits imposed by the operating system on the number of open file, directory and socket handles, limits on disk space usage, limits on memory size, limits on CPU utilization etc.

建议去msdn等查一下相关的资料，不是很清楚各个系统的限制是怎么样的，另外，perl在windows上的fork也是伪的，不知道是不是perl自身做了限制

zk1878

sjdy521 发表于 2012-09-20 11:22
建议去msdn等查一下相关的资料，不是很清楚各个系统的限制是怎么样的，另外，perl在windows上的fork也是 ...

没耐心那么深入看了，哈哈

cdtits

windows 自己的限制