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sched: align rq to cacheline boundary

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Align the per cpu runqueue to the cacheline boundary.  This will minimize
the number of cachelines touched during remote wakeup.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Ravikiran G Thirumalai <kiran@scalex86.org>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Siddha, Suresh B
2007-05-08 00:33:09 -07:00
committed by Linus Torvalds
parent bd53f96ca5
commit c3396620ca
1 changed files with 1 additions and 1 deletions
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kernel/sched.c
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@@ -304,7 +304,7 @@ struct rq {
struct lock_class_key rq_lock_key; struct lock_class_key rq_lock_key;
}; };
static DEFINE_PER_CPU(struct rq, runqueues); static DEFINE_PER_CPU(struct rq, runqueues) ____cacheline_aligned_in_smp;
static inline int cpu_of(struct rq *rq) static inline int cpu_of(struct rq *rq)
{ {