Commit 01e97f6b authored Sep 03, 2009 by Jens Axboe

block: enable rq CPU completion affinity by default



Test results here look good, and on big OLTP runs it has also shown
to significantly increase cycles attributed to the database and
cause a performance boost.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

parent b217a903

include/linux/blkdev.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -463,7 +463,8 @@ struct request_queue

		#define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) \| \
		(1 << QUEUE_FLAG_CLUSTER) \| \
		(1 << QUEUE_FLAG_STACKABLE))
		(1 << QUEUE_FLAG_STACKABLE) \| \
		(1 << QUEUE_FLAG_SAME_COMP))

		static inline int queue_is_locked(struct request_queue *q)
		{