From: Hannes Reinecke <hare@xxxxxxx> Allocate one queue per CPU and get a performance boost from higher parallelism. Signed-off-by: Hannes Reinecke <hare@xxxxxxx> --- drivers/block/rbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 9ff4355fe48a..a4e7b494344c 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4970,7 +4970,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) rbd_dev->tag_set.queue_depth = rbd_dev->opts->queue_depth; rbd_dev->tag_set.numa_node = NUMA_NO_NODE; rbd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE; - rbd_dev->tag_set.nr_hw_queues = 1; + rbd_dev->tag_set.nr_hw_queues = num_present_cpus(); rbd_dev->tag_set.cmd_size = sizeof(struct rbd_img_request); err = blk_mq_alloc_tag_set(&rbd_dev->tag_set); -- 2.19.2
