It can change process priority, end, refresh or add a new process.
它可以改变进程的优先级，刷新或添加新的进程。
If you happen to start a process and realize that it should run at a different priority, there is a way to change it after it has started, using the renice command.
如果您正好启动了一个进程，但意识到它应该以不同的优先级运行，那么有一种方法可以在启动之后对其进行更改，即使用renice命令。
When you do this, you actually change the value of the priority of a thread (default value of 40) by changing the nice value of its process.
在进行该操作时，您实际上通过更改进程的nice值，从而更改了线程优先级的值(缺省值为40)。
Set id to 0 to change the current process (or thread) priority.
将id设置为0来修改当前进程(或线程)的优先级。
Based on time elapsed or other boosts, the operating system can change the base priority level when a process needs to be put ahead of others for access to the processor.
当需要将某个进程放到其他进程前来访问处理器时，操作系统可基于运行时间或其他提升来更改基本优先级别。
Based on time elapsed or other boosts, the operating system can change the base priority level when a process needs to be put ahead of others for access to the processor.
当需要将某个进程放到其他进程前来访问处理器时，操作系统可基于运行时间或其他提升来更改基本优先级别。
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