From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Bart Van Assche <bvanassche@acm.org>
Subject: [PATCH v2 0/6] Improve zoned storage write performance
Date: Thu, 23 Jun 2022 16:25:57 -0700 [thread overview]
Message-ID: <20220623232603.3751912-1-bvanassche@acm.org> (raw)
Hi Jens,
Measurements have shown that limiting the queue depth to one per sequential
zone has a significant negative performance impact on zoned UFS devices. Hence
this patch series that increases the queue depth for write commands for
sequential zones when using the mq-deadline scheduler.
SCSI and UFS patches will be submitted at a later time (after multiqueue
support is available for the UFS driver).
Please consider this patch series for kernel v5.20.
Thanks,
Bart.
Changes compared to v1:
- Left out the SCSI and NVMe patches.
- Added a null_blk patch.
- Included measurement results.
Bart Van Assche (6):
block: Document blk_queue_zone_is_seq() and blk_rq_zone_is_seq()
block: Introduce the blk_rq_is_zoned_seq_write() function
block: Introduce a request queue flag for pipelining zoned writes
block/mq-deadline: Only use zone locking if necessary
block/null_blk: Refactor null_queue_rq()
block/null_blk: Add support for pipelining zoned writes
block/blk-zoned.c | 17 +++--------------
block/mq-deadline.c | 15 +++++++++------
drivers/block/null_blk/main.c | 30 ++++++++++++++++++++----------
drivers/block/null_blk/null_blk.h | 3 +++
drivers/block/null_blk/zoned.c | 4 +++-
include/linux/blk-mq.h | 30 ++++++++++++++++++++++++++++++
include/linux/blkdev.h | 16 ++++++++++++++++
7 files changed, 84 insertions(+), 31 deletions(-)
next reply other threads:[~2022-06-23 23:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-23 23:25 Bart Van Assche [this message]
2022-06-23 23:25 ` [PATCH v2 1/6] block: Document blk_queue_zone_is_seq() and blk_rq_zone_is_seq() Bart Van Assche
2022-06-24 0:10 ` Damien Le Moal
2022-06-23 23:25 ` [PATCH v2 2/6] block: Introduce the blk_rq_is_zoned_seq_write() function Bart Van Assche
2022-06-24 0:15 ` Damien Le Moal
2022-06-24 6:07 ` Christoph Hellwig
2022-06-24 16:35 ` Bart Van Assche
2022-06-23 23:26 ` [PATCH v2 3/6] block: Introduce a request queue flag for pipelining zoned writes Bart Van Assche
2022-06-24 0:19 ` Damien Le Moal
2022-06-24 16:29 ` Bart Van Assche
2022-06-23 23:26 ` [PATCH v2 4/6] block/mq-deadline: Only use zone locking if necessary Bart Van Assche
2022-06-24 0:24 ` Damien Le Moal
2022-06-23 23:26 ` [PATCH v2 5/6] block/null_blk: Refactor null_queue_rq() Bart Van Assche
2022-06-24 0:26 ` Damien Le Moal
2022-06-23 23:26 ` [PATCH v2 6/6] block/null_blk: Add support for pipelining zoned writes Bart Van Assche
2022-06-24 0:29 ` Damien Le Moal
2022-06-24 6:06 ` Christoph Hellwig
2022-06-24 16:45 ` Bart Van Assche
2022-06-25 9:25 ` Christoph Hellwig
2022-06-26 0:23 ` Bart Van Assche
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220623232603.3751912-1-bvanassche@acm.org \
--to=bvanassche@acm.org \
--cc=axboe@kernel.dk \
--cc=hch@lst.de \
--cc=linux-block@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.