Commit f540a608 authored by Ingo Molnar's avatar 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: default avatarIngo Molnar <mingo@elte.hu>
parent 4ae7d5ce
...@@ -1396,6 +1396,12 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd) ...@@ -1396,6 +1396,12 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd)
{ {
s64 delta; 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) if (p->sched_class != &fair_sched_class)
return 0; return 0;
......
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