From 391e43da797a96aeb65410281891f6d0b0e9611c Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 15 Nov 2011 17:14:39 +0100 Subject: sched: Move all scheduler bits into kernel/sched/ There's too many sched*.[ch] files in kernel/, give them their own directory. (No code changed, other than Makefile glue added.) Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_features.h | 70 ------------------------------------------------- 1 file changed, 70 deletions(-) delete mode 100644 kernel/sched_features.h (limited to 'kernel/sched_features.h') diff --git a/kernel/sched_features.h b/kernel/sched_features.h deleted file mode 100644 index 84802245abd..00000000000 --- a/kernel/sched_features.h +++ /dev/null @@ -1,70 +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) -SCHED_FEAT(RT_RUNTIME_SHARE, 1) -- cgit v1.2.3