Commit f540a608 authored Mar 15, 2008 by Ingo Molnar

sched: wakeup-buddy tasks are cache-hot



Wakeup-buddy tasks are cache-hot - this makes it a bit harder
for the load-balancer to tear them apart. (but it's still possible,
if the load is sufficiently assymetric)

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 4ae7d5ce

kernel/sched.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -1396,6 +1396,12 @@ task_hot(struct task_struct p, u64 now, struct sched_domain sd)
		{
		s64 delta;

		/*
		* Buddy candidates are cache hot:
		*/
		if (&p->se == cfs_rq_of(&p->se)->next)
		return 1;

		if (p->sched_class != &fair_sched_class)
		return 0;