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[PATCH] sched: activate SCHED BATCH expired

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To increase the strength of SCHED_BATCH as a scheduling hint we can
activate batch tasks on the expired array since by definition they are
latency insensitive tasks.

Signed-off-by: Con Kolivas <kernel@kolivas.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Con Kolivas
2006-03-31 02:31:29 -08:00
committed by Linus Torvalds
parent 7c4bb1f9b3
commit d425b274ba
2 changed files with 8 additions and 3 deletions
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include/linux/sched.h
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@@ -484,6 +484,7 @@ struct signal_struct {
#define MAX_PRIO (MAX_RT_PRIO + 40)
#define rt_task(p) (unlikely((p)->prio < MAX_RT_PRIO))
#define batch_task(p) (unlikely((p)->policy == SCHED_BATCH))
/*
* Some day this will be a full-fledged user tracking system..