From: Glauber Costa <glommer@parallels.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <linux-kernel@vger.kernel.org>, <cgroups@vger.kernel.org>,
<devel@openvz.org>, Paul Turner <pjt@google.com>,
Tejun Heo <tj@kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
<handai.szj@gmail.com>, <Andrew.Phillips@lmax.com>,
Serge Hallyn <serge.hallyn@canonical.com>
Subject: Re: [PATCH v3 4/6] add a new scheduler hook for context switch
Date: Wed, 30 May 2012 16:07:57 +0400 [thread overview]
Message-ID: <4FC60D9D.8080705@parallels.com> (raw)
In-Reply-To: <1338376851.26856.260.camel@twins>
On 05/30/2012 03:20 PM, Peter Zijlstra wrote:
> /me cries a little.. I was hoping to fix put_prev_task.. see:
>
> https://lkml.org/lkml/2012/2/16/487
>
> (I've actually got a 4 patch split out of that if anybody cares)
>
> Its just one of those things stuck behind the -ENOTIME tree :/
>
> The plan is to 'merge' put_prev_task and pick_next_task into one and
> avoid a lot of the up-down walking.
>
> You just added a constraint for always having to walk the entire thing
> up -- cgroups is too damn expensive already, we should be trimming this
> nonsense not bloating it.
if they are merged, then I don't need a new hook.
Do you have plans to do it? I'd be happy to continue the work if you
lack the time, since I am directly interested in the functionality.
next prev parent reply other threads:[~2012-05-30 12:10 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 9:48 [PATCH v3 0/6] per cgroup /proc/stat statistics Glauber Costa
2012-05-30 9:48 ` [PATCH v3 1/6] measure exec_clock for rt sched entities Glauber Costa
2012-05-30 10:29 ` Peter Zijlstra
2012-05-30 10:32 ` Glauber Costa
2012-05-30 10:42 ` Peter Zijlstra
2012-05-30 10:42 ` Glauber Costa
2012-05-30 11:00 ` Paul Turner
2012-05-30 12:09 ` Glauber Costa
2012-05-30 9:48 ` [PATCH v3 2/6] account guest time per-cgroup as well Glauber Costa
2012-05-30 10:32 ` Peter Zijlstra
2012-05-30 10:36 ` Glauber Costa
2012-05-30 10:46 ` Paul Turner
2012-05-30 9:48 ` [PATCH v3 3/6] expose fine-grained per-cpu data for cpuacct stats Glauber Costa
2012-05-30 10:34 ` Peter Zijlstra
2012-05-30 10:34 ` Glauber Costa
2012-05-30 10:43 ` Peter Zijlstra
2012-05-30 10:44 ` Glauber Costa
2012-05-30 11:24 ` Peter Zijlstra
2012-05-30 11:24 ` Paul Turner
2012-05-30 12:20 ` Glauber Costa
2012-05-30 12:48 ` Paul Turner
2012-05-30 12:52 ` Glauber Costa
2012-05-30 13:26 ` Glauber Costa
2012-05-30 13:26 ` Glauber Costa
2012-05-30 9:48 ` [PATCH v3 4/6] add a new scheduler hook for context switch Glauber Costa
2012-05-30 11:20 ` Peter Zijlstra
2012-05-30 11:40 ` Peter Zijlstra
2012-05-30 12:08 ` Glauber Costa
2012-05-30 12:07 ` Glauber Costa [this message]
2012-05-30 9:48 ` [PATCH v3 5/6] Also record sleep start for a task group Glauber Costa
2012-05-30 11:35 ` Paul Turner
2012-05-30 12:24 ` Glauber Costa
2012-05-30 12:44 ` Peter Zijlstra
2012-05-30 12:44 ` Glauber Costa
2012-05-30 9:48 ` [PATCH v3 6/6] expose per-taskgroup schedstats in cgroup Glauber Costa
2012-05-30 11:22 ` Peter Zijlstra
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