主题：【求助】：请教信息技术方面的大牛有关多线程的问题 -- newtime

多线程因为有额外的工作要做来产生和管理线程，当然需要花更多的时间。。。除非你写一个程序可以同时利用多个CPU来产生多线程，那么因为多个CPU同时进行计算，时间就可以短了。。。。

not Mont Carlo, but that's for sure just a typo.

A light weight process, ie, the thread, must do substantial chunk of work to gain sufficient efficiency. In your case, I highly suspect it's because the threads are not doing enough work, so your CPU spends most of the time creating and destroying the threads instead of doing calculation, the real work.