Talk:CPU time

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definition is wrong

CPU time or CPU usage is the amount of time a computer program uses in processing central processing unit (CPU) instructions, as opposed to, for example, waiting for input/output operations. and is also a CPU usage

This is wrong because wait states are usually included in the CPU time, because the CPU is still used from a software point-of-view. CPU time is usually mesured as the time, where the system idle task is not running. --MrBurns (talk) 23:41, 27 April 2009 (UTC)[reply]

Unix commands

Only Unix commands are mentioned. This article ought to mention commands for other operating systems. Otherwise the section should be tagged with {{undue weight}}.

I totally agree with the above comment. The article should insist more on definition, characterization and other generalities that are valid across all operating systems. It should also clearly define user time, system time and steal time, before showing how these values can be found out on different operating systems. Cristiklein (talk) 08:04, 21 August 2013 (UTC)[reply]

scheduled time

Could someone please read this article article and work the insights into this wikipedia article? I'm not deep enough into this topic to do that by myself. --IUniversEi (talk) 08:19, 8 October 2012 (UTC)[reply]

That article is a personal blog, so it's probably not a reliable source. The crux of it can be boiled down to one sentence: "When a process tells you it got 1 second of CPU time, the 1 second could have been really used by 8 other processes alltogether (sic) [depending on the operating system]". This seems more appropriate for an errata or bugs section about the operating system, not the concept of CPU time. — Loadmaster (talk) 16:31, 8 October 2012 (UTC)[reply]