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 |
* 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
|  |