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

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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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Siddha, Suresh B 2005-09-10 00:26:21 -07:00 • committed by Linus Torvalds

parent 5927ad78ec

commit fa3b6ddc3f

1 changed files with 14 additions and 1 deletions

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kernel/sched.c

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