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| author | Ingo Molnar <mingo@elte.hu> | 2007-12-18 15:21:13 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-12-18 15:21:13 +0100 |
| commit | 6cbf1c126cf6a727287d61b122fde00a8b827bfe (patch) | |
| tree | b6eaf9d529721bb0928f6834dbd1ad61f87c0697 | |
| parent | 2bacec8c318ca0418c0ee9ac662ee44207765dd4 (diff) | |
| download | op-kernel-dev-6cbf1c126cf6a727287d61b122fde00a8b827bfe.zip op-kernel-dev-6cbf1c126cf6a727287d61b122fde00a8b827bfe.tar.gz | |
sched: do not hurt SCHED_BATCH on wakeup
measurements by Yanmin Zhang have shown that SCHED_BATCH tasks benefit
if they run the same place_entity() logic as SCHED_OTHER tasks - so
uniformize behavior in this area.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/sched_fair.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index c33f0ce..da7c061 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -511,8 +511,7 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int initial) if (!initial) { /* sleeps upto a single latency don't count. */ - if (sched_feat(NEW_FAIR_SLEEPERS) && entity_is_task(se) && - task_of(se)->policy != SCHED_BATCH) + if (sched_feat(NEW_FAIR_SLEEPERS) && entity_is_task(se)) vruntime -= sysctl_sched_latency; /* ensure we never gain time by being placed backwards. */ |
