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| author | Siddha, Suresh B <suresh.b.siddha@intel.com> | 2007-05-08 09:33:09 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 20:15:17 +0200 |
| commit | c3396620cace20639bdf380f893f4dccad090d91 (patch) | |
| tree | 90e4a76b014809e4773eb4393f64d92791ecaba5 /kernel | |
| parent | sched: redundant reschedule when set_user_nice() boosts a prio of a task from... (diff) | |
| download | linux-c3396620cace20639bdf380f893f4dccad090d91.tar.xz linux-c3396620cace20639bdf380f893f4dccad090d91.zip | |
sched: align rq to cacheline boundary
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>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index be2706c885a7..a3a04085e794 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -304,7 +304,7 @@ struct rq { 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) { |