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sched: add tree based averages

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add support for tree based vruntime averages.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Peter Zijlstra
2007-10-15 17:00:05 +02:00
committed by Ingo Molnar
parent 28a1f6fa2f
commit 94dfb5e75e
2 changed files with 18 additions and 8 deletions
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6
kernel/sched.c
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@@ -399,6 +399,8 @@ enum {
SCHED_FEAT_SLEEPER_AVG = 4,
SCHED_FEAT_SLEEPER_LOAD_AVG = 8,
SCHED_FEAT_START_DEBIT = 16,
SCHED_FEAT_USE_TREE_AVG = 32,
SCHED_FEAT_APPROX_AVG = 64,
};
const_debug unsigned int sysctl_sched_features =
@@ -406,7 +408,9 @@ const_debug unsigned int sysctl_sched_features =
SCHED_FEAT_NEW_FAIR_SLEEPERS *1 |
SCHED_FEAT_SLEEPER_AVG *0 |
SCHED_FEAT_SLEEPER_LOAD_AVG *1 |
SCHED_FEAT_START_DEBIT *1;
SCHED_FEAT_START_DEBIT *1 |
SCHED_FEAT_USE_TREE_AVG *0 |
SCHED_FEAT_APPROX_AVG *0;
#define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)