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From: Pavel Begunkov <asml.silence@gmail.com>
To: linux-block@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>,
	Christoph Hellwig <hch@infradead.org>,
	Pavel Begunkov <asml.silence@gmail.com>
Subject: [PATCH 0/5] block optimisations
Date: Sat, 23 Oct 2021 17:21:31 +0100	[thread overview]
Message-ID: <cover.1635006010.git.asml.silence@gmail.com> (raw)

Another split off from the "block optimisation round" series focusing
on fops.c. It addresses Cristoph's review, the main change is
setting bvec directly instead of passing a "hint"
to bio_iov_iter_get_pages() in 3/5, and a prep patch 2/5.

I don't find a good way how to deduplicate __blkdev_direct_IO_async(),
there are small differences in implementation. If that's fine I'd
suggest to do it afterwards, anyway I want to brush up
__blkdev_direct_IO(), e.g. remove effectively unnecessary DIO_MULTI_BIO
flag.

Performance stays the same, solely 1/5 gives ~4.5 -> 4.7 MIOPS,
plus 1-2% from 3/5.

Pavel Begunkov (5):
  block: add single bio async direct IO helper
  block: refactor bio_iov_bvec_set()
  block: avoid extra iter advance with async iocb
  block: kill unused polling bits in __blkdev_direct_IO()
  block: add async version of bio_set_polled

 block/bio.c         |  37 ++++++--------
 block/fops.c        | 116 ++++++++++++++++++++++++++++++++++++--------
 include/linux/bio.h |   6 +++
 3 files changed, 116 insertions(+), 43 deletions(-)

-- 
2.33.1


             reply	other threads:[~2021-10-23 16:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-23 16:21 Pavel Begunkov [this message]
2021-10-23 16:21 ` [PATCH 1/5] block: add single bio async direct IO helper Pavel Begunkov
2021-10-23 16:21 ` [PATCH 2/5] block: refactor bio_iov_bvec_set() Pavel Begunkov
2021-10-25  7:31   ` Christoph Hellwig
2021-10-23 16:21 ` [PATCH 3/5] block: avoid extra iter advance with async iocb Pavel Begunkov
2021-10-25  7:33   ` Christoph Hellwig
2021-10-25 11:10     ` Pavel Begunkov
2021-10-23 16:21 ` [PATCH 4/5] block: kill unused polling bits in __blkdev_direct_IO() Pavel Begunkov
2021-10-23 16:46   ` Pavel Begunkov
2021-10-24 15:09     ` Jens Axboe
2021-10-24 17:17       ` Pavel Begunkov
2021-10-24 18:11         ` Jens Axboe
2021-10-25  7:35   ` Christoph Hellwig
2021-10-25 10:12     ` Pavel Begunkov
2021-10-25 10:27       ` Pavel Begunkov
2021-10-27  6:47         ` Christoph Hellwig
2021-10-23 16:21 ` [PATCH 5/5] block: add async version of bio_set_polled Pavel Begunkov
2021-10-25  7:36   ` Christoph Hellwig
2021-10-25 10:20     ` Pavel Begunkov
2021-10-25  7:28 ` [PATCH 0/5] block optimisations Christoph Hellwig
2021-10-26 23:30 ` (subset) " Jens Axboe

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