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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-19 17:02:01 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-19 17:02:01 -0700 |
| commit | 10ce3cc919f50c2043b41ca968b43c26a3672600 (patch) | |
| tree | ea409366a5208aced495bc0516a08b81fd43222e /kernel/sched_features.h | |
| parent | 24e3e5ae1e4c2a3a32f5b1f96b4e3fd721806acd (diff) | |
| parent | 5c6a7a62c130afef3d61c1dee153012231ff5cd9 (diff) | |
Merge branch 'next' into for-linus
Diffstat (limited to 'kernel/sched_features.h')
| -rw-r--r-- | kernel/sched_features.h | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/kernel/sched_features.h b/kernel/sched_features.h deleted file mode 100644 index efa0a7b75dde..000000000000 --- a/kernel/sched_features.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Only give sleepers 50% of their service deficit. This allows - * them to run sooner, but does not allow tons of sleepers to - * rip the spread apart. - */ -SCHED_FEAT(GENTLE_FAIR_SLEEPERS, 1) - -/* - * Place new tasks ahead so that they do not starve already running - * tasks - */ -SCHED_FEAT(START_DEBIT, 1) - -/* - * Based on load and program behaviour, see if it makes sense to place - * a newly woken task on the same cpu as the task that woke it -- - * improve cache locality. Typically used with SYNC wakeups as - * generated by pipes and the like, see also SYNC_WAKEUPS. - */ -SCHED_FEAT(AFFINE_WAKEUPS, 1) - -/* - * Prefer to schedule the task we woke last (assuming it failed - * wakeup-preemption), since its likely going to consume data we - * touched, increases cache locality. - */ -SCHED_FEAT(NEXT_BUDDY, 0) - -/* - * Prefer to schedule the task that ran last (when we did - * wake-preempt) as that likely will touch the same data, increases - * cache locality. - */ -SCHED_FEAT(LAST_BUDDY, 1) - -/* - * Consider buddies to be cache hot, decreases the likelyness of a - * cache buddy being migrated away, increases cache locality. - */ -SCHED_FEAT(CACHE_HOT_BUDDY, 1) - -/* - * Use arch dependent cpu power functions - */ -SCHED_FEAT(ARCH_POWER, 0) - -SCHED_FEAT(HRTICK, 0) -SCHED_FEAT(DOUBLE_TICK, 0) -SCHED_FEAT(LB_BIAS, 1) - -/* - * Spin-wait on mutex acquisition when the mutex owner is running on - * another cpu -- assumes that when the owner is running, it will soon - * release the lock. Decreases scheduling overhead. - */ -SCHED_FEAT(OWNER_SPIN, 1) - -/* - * Decrement CPU power based on time not spent running tasks - */ -SCHED_FEAT(NONTASK_POWER, 1) - -/* - * Queue remote wakeups on the target CPU and process them - * using the scheduler IPI. Reduces rq->lock contention/bounces. - */ -SCHED_FEAT(TTWU_QUEUE, 1) - -SCHED_FEAT(FORCE_SD_OVERLAP, 0) |