Unix nice

I just saw this interesting tweet:

Unix系统的每个进程，都有一个nice值。这个值越大，优先级越低。然后，还有一个nice命令，每运行一次，指定进程的nice值＋10。它的意思就是做人要nice，把更多的CPU时间留给别人。nice值越高，你留给自己的份额就越少。

From hereby @ruanyf.

And i didn't known that until now. Cool! The name 'nice' is nice, too.

Don't worry if you can't read Chinese. See also here and here.

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