lkml.org 
[lkml]   [2008]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [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


\
 
 \ /
  Last update: 2008-01-22 22:09    [W:0.038 / U:0.280 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site