From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
mhocko-AlSwsSmVLrQ@public.gmane.org,
kay.sievers-tD+1rO4QERM@public.gmane.org,
mzxreary-uLTowLwuiw4b1SvskN2V4Q@public.gmane.org,
davej-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
ben-/+tVBieCtBitmTQ+vhA3Yw@public.gmane.org,
pjt-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org
Subject: Re: [PATCH 2/3] cgroup, sched: let cpu serve the same files as cpuacct
Date: Thu, 20 Sep 2012 11:00:49 -0700 [thread overview]
Message-ID: <20120920180049.GG28934@google.com> (raw)
In-Reply-To: <505ACE36.80603-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Hell, Glauber.
On Thu, Sep 20, 2012 at 12:05:10PM +0400, Glauber Costa wrote:
> The whole point of this merge is that this is not needed.
Yeah, the whole point of this series is enabling that and other
optimizations.
> This information is already available from exec_clock for fair tasks.
> for rt tasks, we have no exec clock, but do have a hierarchy walk a bit
> below the current cpuacct charge, that can be used for that purpose.
Yeah yeah, sure, now you can build that on top of this patchset
without worrying about cpuacct, which can also, hopefully, be removed
fairly soon.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Glauber Costa <glommer@parallels.com>
Cc: linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, cgroups@vger.kernel.org,
lizefan@huawei.com, peterz@infradead.org, mhocko@suse.cz,
kay.sievers@vrfy.org, mzxreary@0pointer.de, davej@redhat.com,
ben@decadent.org.uk, pjt@google.com
Subject: Re: [PATCH 2/3] cgroup, sched: let cpu serve the same files as cpuacct
Date: Thu, 20 Sep 2012 11:00:49 -0700 [thread overview]
Message-ID: <20120920180049.GG28934@google.com> (raw)
In-Reply-To: <505ACE36.80603@parallels.com>
Hell, Glauber.
On Thu, Sep 20, 2012 at 12:05:10PM +0400, Glauber Costa wrote:
> The whole point of this merge is that this is not needed.
Yeah, the whole point of this series is enabling that and other
optimizations.
> This information is already available from exec_clock for fair tasks.
> for rt tasks, we have no exec clock, but do have a hierarchy walk a bit
> below the current cpuacct charge, that can be used for that purpose.
Yeah yeah, sure, now you can build that on top of this patchset
without worrying about cpuacct, which can also, hopefully, be removed
fairly soon.
Thanks.
--
tejun
next prev parent reply other threads:[~2012-09-20 18:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 22:43 [PATCHSET RFC] cpu,cpuacct: make cpu serve cpuacct files and deprecate cpuacct Tejun Heo
2012-09-19 22:43 ` Tejun Heo
[not found] ` <1348094625-4471-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2012-09-19 22:43 ` [PATCH 1/3] cgroup: implement CFTYPE_NO_PREFIX Tejun Heo
2012-09-19 22:43 ` Tejun Heo
2012-09-19 22:43 ` [PATCH 2/3] cgroup, sched: let cpu serve the same files as cpuacct Tejun Heo
2012-09-19 22:43 ` Tejun Heo
[not found] ` <1348094625-4471-3-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2012-09-20 8:05 ` Glauber Costa
2012-09-20 8:05 ` Glauber Costa
[not found] ` <505ACE36.80603-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-09-20 18:00 ` Tejun Heo
2012-09-20 18:00 ` Tejun Heo [this message]
2012-09-20 18:00 ` Tejun Heo
2012-09-19 22:43 ` [PATCH 3/3] cgroup, sched: deprecate cpuacct Tejun Heo
2012-09-19 22:43 ` Tejun Heo
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