From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v7 04/11] sched: adjust exec_clock to use it as cpu usage
 metric
Date: Thu, 6 Jun 2013 16:00:12 -0700
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To: Glauber Costa <glommer-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
Cc: Peter Zijlstra <a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>, Paul Turner <pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Frederic Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, devel-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org, Dave Jones <davej-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Ben Hutchings <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>, Lennart Poettering <lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>, Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>

On Wed, May 29, 2013 at 03:03:15PM +0400, Glauber Costa wrote:
> exec_clock already provides per-group cpu usage metrics, and can be
> reused by cpuacct in case cpu and cpuacct are comounted.
> 
> However, it is only provided by tasks in fair class. Doing the same for
> rt is easy, and can be done in an already existing hierarchy loop. This
> is an improvement over the independent hierarchy walk executed by
> cpuacct.
> 
> Signed-off-by: Glauber Costa <glommer-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
> CC: Dave Jones <davej-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> CC: Ben Hutchings <ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org>
> CC: Peter Zijlstra <a.p.zijlstra-/NLkJaSkS4VmR6Xm/wNWPw@public.gmane.org>
> CC: Paul Turner <pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
> CC: Lennart Poettering <lennart-mdGvqq1h2p+GdvJs77BJ7Q@public.gmane.org>
> CC: Kay Sievers <kay.sievers-tD+1rO4QERM@public.gmane.org>
> CC: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Reviewed-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Thanks.

-- 
tejun