From ce6c131131df442f0d49d064129ecc52d9fe8ca9 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 15 Oct 2007 17:00:14 +0200 Subject: 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 Signed-off-by: Ingo Molnar --- kernel/sched.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'kernel/sched.c') 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) -- cgit v1.2.3-59-g8ed1b