Messages in this thread | | | From | Con Kolivas <> | Subject | Re: [RFC 0/5] sched: Add CPU rate caps | Date | Fri, 26 May 2006 20:41:07 +1000 |
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On Friday 26 May 2006 14:20, Peter Williams wrote: > These patches implement CPU usage rate limits for tasks.
Nice :)
> Although the rlimit mechanism already has a CPU usage limit (RLIMIT_CPU) > it is a total usage limit and therefore (to my mind) not very useful. > These patches provide an alternative whereby the (recent) average CPU > usage rate of a task can be limited to a (per task) specified proportion > of a single CPU's capacity. The limits are specified in parts per > thousand and come in two varieties -- hard and soft.
Why 1000? I doubt that degree of accuracy is possible in cpu accounting and accuracy or even required. To me it would seem to make more sense to just be a percentage.
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