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| author |   Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-15 17:00:14 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:14 +0200 |
| commit | ce6c131131df442f0d49d064129ecc52d9fe8ca9 (patch) | |
| tree | 14b93a32144e7270dd821901ff247f506270a3a3 /kernel/sched.c | |
| parent | sched: fix group scheduling for SCHED_BATCH (diff) | |
| download | linux-dev-ce6c131131df442f0d49d064129ecc52d9fe8ca9.tar.xz linux-dev-ce6c131131df442f0d49d064129ecc52d9fe8ca9.zip | |
sched: disable forced preemption by default
Implement feature bit to disable forced preemption. This way
it can be checked whether a workload is overscheduling or not.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index b7dff36c7c8c..0bd8f2c0fb40 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -444,13 +444,15 @@ enum { SCHED_FEAT_START_DEBIT = 2, SCHED_FEAT_TREE_AVG = 4, SCHED_FEAT_APPROX_AVG = 8, + SCHED_FEAT_WAKEUP_PREEMPT = 16, }; const_debug unsigned int sysctl_sched_features = SCHED_FEAT_NEW_FAIR_SLEEPERS *1 | SCHED_FEAT_START_DEBIT *1 | SCHED_FEAT_TREE_AVG *0 | - SCHED_FEAT_APPROX_AVG *0; + SCHED_FEAT_APPROX_AVG *0 | + SCHED_FEAT_WAKEUP_PREEMPT *1; #define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x) |