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NVMe: increase depth of admin queue

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Usually the admin queue depth of 64 is plenty, but for some use cases we
really need it larger. Examples are use cases like MAT, where you have
to touch all of NAND for init/format like purposes. In those cases, we
see a good 2x increase with an increased queue depth.

Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Keith Busch <keith.busch@intel.com>
This commit is contained in:
Jens Axboe 2015-03-06 12:56:13 -07:00
parent f137e0f151
commit d31af0a325
1 changed files with 1 additions and 1 deletions
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2
drivers/block/nvme-core.c
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@ -44,7 +44,7 @@
#define NVME_MINORS (1U << MINORBITS)
#define NVME_Q_DEPTH 1024
#define NVME_AQ_DEPTH 64
#define NVME_AQ_DEPTH 256
#define SQ_SIZE(depth) (depth * sizeof(struct nvme_command))
#define CQ_SIZE(depth) (depth * sizeof(struct nvme_completion))
#define ADMIN_TIMEOUT (admin_timeout * HZ)