[dm-devel] 4.4-final: 28 bioset threads on small notebook

Ming Lei ming.lei at canonical.com
Sun Feb 21 09:40:59 UTC 2016


On Sun, Feb 21, 2016 at 2:43 PM, Ming Lin-SSI <ming.l at ssi.samsung.com> wrote:
>>-----Original Message-----
>
> So it's almost already "per request_queue"

Yes, that is because of the following line:

q->bio_split = bioset_create(BIO_POOL_SIZE, 0);

in blk_alloc_queue_node().

Looks like this bio_set doesn't need to be per-request_queue, and
now it is only used for fast-cloning bio for splitting, and one global
split bio_set should be enough.


thanks,
Ming




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