From: Siddha, Suresh B <suresh.b.siddha@intel.com>
Date: Sat, 10 Sep 2005 07:26:21 +0000 (-0700)
Subject: [PATCH] sched: don't kick ALB in the presence of pinned task
X-Git-Tag: v2.6.14-rc1~211
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa3b6ddc3f4a8eadba52234134cdb59c28b5332d;p=pandora-kernel.git

[PATCH] sched: don't kick ALB in the presence of pinned task

Jack Steiner brought this issue at my OLS talk.

Take a scenario where two tasks are pinned to two HT threads in a physical
package.  Idle packages in the system will keep kicking migration_thread on
the busy package with out any success.

We will run into similar scenarios in the presence of CMP/NUMA.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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