So, is nice, nice and simple?
The command nice, and its corresponding function, nice(), appear to be quite simple. A non-privileged user can “nice” a process so that it gets less CPU time. A privileged user name use a negative nice value to allow a process to get more CPU time. Nice is commonly used by users to prevent a non-urgent task, such as a big build, from interfering greatly with one’s interactive activities.
The range of nice values is from -20 to +19. The smaller the value, the more “mean”. Thus a process with a nice value of -20 will get more CPU time than one with nice value +19. So, those are the basics. Do you know more about nice? Try the quiz below. The questions relate to Linux kernel 2.6.29 and/or 2.6.30.
1. How much more time will a process of nice value -20 get over a process of nice value +19?
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