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(parent: 63859d4) | patch
sched: Add a few SYNC hint knobs to play with
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Tue, 15 Sep 2009 17:38:52 +0000 (19:38 +0200)
committerIngo Molnar <mingo@elte.hu>
Tue, 15 Sep 2009 17:47:23 +0000 (19:47 +0200)
commite69b0f1b41c0e57bb1e29100b5810a5914efcb45
treeded9f35988e907c1b9cf45cd2f536b920f5f65b7tree | snapshot
parent63859d4fe4c97b737e7adbfe60acb1c2b2e668cbcommit | diff
sched: Add a few SYNC hint knobs to play with

Currently we use overlap to weaken the SYNC hint, but allow it to
set the hint as well.

 echo NO_SYNC_WAKEUP > /debug/sched_features
 echo SYNC_MORE > /debug/sched_features

preserves pipe-test behaviour without using the WF_SYNC hint.

Worth playing with on more workloads...

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched_fair.c diff | blob | history
kernel/sched_features.h diff | blob | history
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