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authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-27 07:27:54 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-27 07:27:54 +0900
commit1b065fdff1c950d96e4c571abe873a9a8aaa6d51 (patch)
tree603d792daf79ae9a0161d97191202bf5d796dc7d
parentb76a1e4f2a2f95354f4567c8eb420fd4cb68fc26 (diff)
parentd5ad140bc1505a98c0f040937125bfcbb508078f (diff)
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Fix idle balancing sched: Fix volanomark performance regression
-rw-r--r--kernel/sched_fair.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 52ab113d8bb9..00ebd7686676 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;
}
/*
@@ -3219,8 +3215,10 @@ static void idle_balance(int this_cpu, struct rq *this_rq)
interval = msecs_to_jiffies(sd->balance_interval);
if (time_after(next_balance, sd->last_balance + interval))
next_balance = sd->last_balance + interval;
- if (pulled_task)
+ if (pulled_task) {
+ this_rq->idle_stamp = 0;
break;
+ }
}
raw_spin_lock(&this_rq->lock);