diff options
| author | Ingo Molnar <mingo@elte.hu> | 2007-12-18 09:21:13 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-12-18 09:21:13 -0500 |
| commit | 6cbf1c126cf6a727287d61b122fde00a8b827bfe (patch) | |
| tree | b6eaf9d529721bb0928f6834dbd1ad61f87c0697 | |
| parent | 2bacec8c318ca0418c0ee9ac662ee44207765dd4 (diff) | |
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 c33f0ceb3de9..da7c061e7206 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) | |||
| 511 | 511 | ||
| 512 | if (!initial) { | 512 | if (!initial) { |
| 513 | /* sleeps upto a single latency don't count. */ | 513 | /* sleeps upto a single latency don't count. */ |
| 514 | if (sched_feat(NEW_FAIR_SLEEPERS) && entity_is_task(se) && | 514 | if (sched_feat(NEW_FAIR_SLEEPERS) && entity_is_task(se)) |
| 515 | task_of(se)->policy != SCHED_BATCH) | ||
| 516 | vruntime -= sysctl_sched_latency; | 515 | vruntime -= sysctl_sched_latency; |
| 517 | 516 | ||
| 518 | /* ensure we never gain time by being placed backwards. */ | 517 | /* ensure we never gain time by being placed backwards. */ |