blk-mq: Add a polling specific stats function

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Rather than bucketing IO statisics based on direction only we also
bucket based on the IO size. This leads to improved polling
performance. Update the bucket callback function and use it in the
polling latency estimation.

Signed-off-by: Stephen Bates <sbates@raithlin.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Stephen Bates 2017-04-07 06:24:03 -06:00 • committed by Jens Axboe

parent a37244e4cc

commit 720b8ccc45

1 changed files with 35 additions and 10 deletions

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block/blk-mq.c

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