Commit-ID: b5482cfa1c95a188b3054fa33274806add91bbe5 Gitweb: http://git.kernel.org/tip/b5482cfa1c95a188b3054fa33274806add91bbe5 Author: Alex Shi <alex.shi@xxxxxxxxx> AuthorDate: Tue, 16 Nov 2010 17:34:02 +0800 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Thu, 18 Nov 2010 13:11:43 +0100 sched: Fix volanomark performance regression Commit fab4762 triggers excessive idle balancing, causing a ~30% loss in volanomark throughput. Remove idle balancing throttle reset. Originally-by: Alex Shi <alex.shi@xxxxxxxxx> Signed-off-by: Mike Galbraith <efault@xxxxxx> Acked-by: Nikhil Rao <ncrao@xxxxxxxxxx> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> LKML-Reference: <1289928732.5169.211.camel@xxxxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/sched_fair.c | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 52ab113..ba0556d 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1758,10 +1758,6 @@ static void pull_task(struct rq *src_rq, struct task_struct *p, set_task_cpu(p, this_cpu); activate_task(this_rq, p, 0); check_preempt_curr(this_rq, p, 0); - - /* re-arm NEWIDLE balancing when moving tasks */ - src_rq->avg_idle = this_rq->avg_idle = 2*sysctl_sched_migration_cost; - this_rq->idle_stamp = 0; } /* -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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