sched: clear buddies more aggressively

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It was noticed that a task could get re-elected past its run quota due to buddy
affinities. This could increase latency a little. Cure it by more aggresively
clearing buddy state.

We do so in two situations:
 - when we force preempt
 - when we select a buddy to run

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Mike Galbraith 2009-01-28 14:51:39 +01:00 • committed by Ingo Molnar

parent 1596e29773

commit a9f3e2b549

1 changed files with 12 additions and 1 deletions

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kernel/sched_fair.c

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