From: Paul Turner <pjt@google.com>
Date: Mon, 15 Nov 2010 23:47:08 +0000 (-0800)
Subject: sched: Implement demand based update_cfs_load()
X-Git-Tag: v2.6.38-rc1~489^2~23
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b3d190ec3683d568fd2ebaead5e1ec7f97b6e37;p=pandora-kernel.git

sched: Implement demand based update_cfs_load()

When the system is busy, dilation of rq->next_balance makes lb->update_shares()
insufficiently frequent for threads which don't sleep (no dequeue/enqueue
updates).  Adjust for this by making demand based updates based on the
accumulation of execution time sufficient to wrap our averaging window.

Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20101115234938.291159744@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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