unimore/kernel-hacking-2024-linux-steffo
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rbd: enable multiple blk-mq queues

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Allocate one queue per CPU and get a performance boost from
higher parallelism.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Hannes Reinecke 2020-01-31 11:37:39 +01:00 committed by Ilya Dryomov
parent 59e542c869
commit f9b6b98d24
1 changed files with 1 additions and 1 deletions
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2
drivers/block/rbd.c
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@ -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);