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

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Message-Id: <20111215143506.335e443e.nishimura@mxp.nes.nec.co.jp>
Date:	Thu, 15 Dec 2011 14:35:06 +0900
From:	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
To:	LKML <linux-kernel@...r.kernel.org>,
	cgroups <cgroups@...r.kernel.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Turner <pjt@...gle.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
Subject: [PATCH -tip 0/3] sched: some fixes for vruntime calculation related
 to cgroup movement(v2)

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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