Messages in this thread | | | Date | Tue, 22 Jan 2008 22:06:59 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] sched: Keep total / count stats in addition to the max for wait time |
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* Arjan van de Ven <arjan@infradead.org> wrote:
> From: Arjan van de Ven <arjan@linux.intel.com> > Subject: sched: Keep total / count stats in addition to the max for wait time > > Right now, the linux kernel (with scheduler statistics enabled) keeps > track of the maximum time a process is waiting to be scheduled. While > the maximum is a very useful metric, tracking average and total is > equally useful (at least for latencytop) to figure out the accumulated > effect of scheduler delays. The accumulated effect is important to > judge the performance impact of scheduler tuning/behavior.
thanks, applied to sched-devel.git.
Ingo
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