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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-15 17:00:14 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:14 +0200 |
| commit | 8ca0e14ffb12c257de591571a9e96102acdb1c64 (patch) | |
| tree | 21258bb0bacb051f3a4b11e89efe4821b5320c60 | |
| parent | 810e95ccd58d91369191aa4ecc9e6d4a10d8d0c8 (diff) | |
sched: disable sleeper_fairness on SCHED_BATCH
disable sleeper fairness for batch tasks - they are about
batch processing after all.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched_fair.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 3ecbfd0902d..410b77aea21 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -485,7 +485,9 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial) vruntime += sched_vslice_add(cfs_rq, se); if (!initial) { - if (sched_feat(NEW_FAIR_SLEEPERS)) + struct task_struct *p = container_of(se, struct task_struct, se); + + if (sched_feat(NEW_FAIR_SLEEPERS) && p->policy != SCHED_BATCH) vruntime -= sysctl_sched_latency; vruntime = max_t(s64, vruntime, se->vruntime); |