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- /*
- * 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, true)
- /*
- * Place new tasks ahead so that they do not starve already running
- * tasks
- */
- SCHED_FEAT(START_DEBIT, true)
- /*
- * 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, false)
- /*
- * 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, true)
- /*
- * Consider buddies to be cache hot, decreases the likelyness of a
- * cache buddy being migrated away, increases cache locality.
- */
- SCHED_FEAT(CACHE_HOT_BUDDY, true)
- /*
- * Use arch dependent cpu power functions
- */
- SCHED_FEAT(ARCH_POWER, false)
- SCHED_FEAT(HRTICK, false)
- SCHED_FEAT(DOUBLE_TICK, false)
- SCHED_FEAT(LB_BIAS, true)
- /*
- * 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, true)
- /*
- * Decrement CPU power based on time not spent running tasks
- */
- SCHED_FEAT(NONTASK_POWER, true)
- /*
- * Queue remote wakeups on the target CPU and process them
- * using the scheduler IPI. Reduces rq->lock contention/bounces.
- */
- SCHED_FEAT(TTWU_QUEUE, true)
- SCHED_FEAT(FORCE_SD_OVERLAP, false)
- SCHED_FEAT(RT_RUNTIME_SHARE, true)
- SCHED_FEAT(LB_MIN, false)
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