From 0c4b83da58ec2e96ce9c44c211d6eac5f9dae478 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 20 Oct 2008 14:27:43 +0200 Subject: [PATCH] sched: disable the hrtick for now David Miller reported that hrtick update overhead has tripled the wakeup overhead on Sparc64. That is too much - disable the HRTICK feature for now by default, until a faster implementation is found. Reported-by: David Miller Acked-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_features.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched_features.h b/kernel/sched_features.h index 7c9e8f4..fda0162 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -5,7 +5,7 @@ SCHED_FEAT(START_DEBIT, 1) SCHED_FEAT(AFFINE_WAKEUPS, 1) SCHED_FEAT(CACHE_HOT_BUDDY, 1) SCHED_FEAT(SYNC_WAKEUPS, 1) -SCHED_FEAT(HRTICK, 1) +SCHED_FEAT(HRTICK, 0) SCHED_FEAT(DOUBLE_TICK, 0) SCHED_FEAT(ASYM_GRAN, 1) SCHED_FEAT(LB_BIAS, 1) -- 2.7.4