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<blockquote data-quote="cazabam" data-source="post: 242421" data-attributes="member: 17895"><p>Aptmunich is correct, it's the process priority. The way it works is this:</p><p></p><p>In user space, nice 20 is the lowest priority, nice 10 is the default and nice 0 is the highest priority a normal user can set their process (to change the nice value, you need to check `man nice` at a terminal). The root user (or any administrator user via the `sudo` command) can also access special nice values of -1 to -20, which get progressively higher and higher in priority until they pretty much use up all the CPU time.</p><p></p><p>IIRC, the reason it's called `nice` and the back-to-front scale is a silly developer pun. If a process has a nice value of 20, it means that it is a very nice process and will give up its processor cycles to others. If it has a nice value of 0, then it's not very nice at all and will hog the processor if it can <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="cazabam, post: 242421, member: 17895"] Aptmunich is correct, it's the process priority. The way it works is this: In user space, nice 20 is the lowest priority, nice 10 is the default and nice 0 is the highest priority a normal user can set their process (to change the nice value, you need to check `man nice` at a terminal). The root user (or any administrator user via the `sudo` command) can also access special nice values of -1 to -20, which get progressively higher and higher in priority until they pretty much use up all the CPU time. IIRC, the reason it's called `nice` and the back-to-front scale is a silly developer pun. If a process has a nice value of 20, it means that it is a very nice process and will give up its processor cycles to others. If it has a nice value of 0, then it's not very nice at all and will hog the processor if it can :) [/QUOTE]
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