linux-kernel - Re: [PATCH -tip 0/3] sched: some fixes for vruntime calculation related to cgroup movement(v2)

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Message-Id: <20111219115508.0d5bc98d.nishimura@mxp.nes.nec.co.jp>
Date:	Mon, 19 Dec 2011 11:55:08 +0900
From:	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
To:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	cgroups <cgroups@...r.kernel.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Turner <pjt@...gle.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
Subject: Re: [PATCH -tip 0/3] sched: some fixes for vruntime calculation
 related to cgroup movement(v2)

Someone who have comments ?
If there are some problems that prevent these patches from being accepted,
I'll fix them.

Thanks,
Daisuke Nishimura

On Thu, 15 Dec 2011 14:35:06 +0900
Daisuke Nishimura <nishimura@....nes.nec.co.jp> wrote:

> Hi, all.
> 
> This is an updated version based on comments and rebased onto the -tip tree.
> 
> These patches fix problems I could see in 3.2-rc2 when testing frequent cgroup movement
> under very high load. Without these patches, some processes were not scheduled
> (although they were queued into rq)for a very long time(minutes or hours!),
> because vruntime of these processes were far bigger than min_vruntime.
> 
> Daisuke Nishimura (3):
>   sched: fix cgroup movement of newly created process
>   sched: fix cgroup movement of forking process
>   sched: fix cgroup movement of waking process
> 
>  kernel/sched/fair.c |   22 ++++++++++++++++++++--
>  1 files changed, 20 insertions(+), 2 deletions(-)
> 
> Thanks,
> Daisuke Nishimura.
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