From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Subject: [PATCHSET 0/4] Add support for shared io-wq backends
Date: Thu, 23 Jan 2020 16:16:10 -0700 [thread overview]
Message-ID: <20200123231614.10850-1-axboe@kernel.dk> (raw)
Sometimes an applications wants to use multiple smaller rings, because
it's more efficient than sharing a ring. The downside of that is that
we'll create the io-wq backend separately for all of them, while they
would be perfectly happy just sharing that.
This patchset adds support for that. io_uring_params grows an 'id' field,
which denotes an identifier for the async backend. If an application
wants to utilize sharing, it'll simply grab the id from the first ring
created, and pass it in to the next one and set IORING_SETUP_SHARED. This
allows efficient sharing of backend resources, while allowing multiple
rings in the application or library.
Not a huge fan of the IORING_SETUP_SHARED name, we should probably make
that better (I'm taking suggestions).
--
Jens Axboe
next reply other threads:[~2020-01-23 23:16 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-23 23:16 Jens Axboe [this message]
2020-01-23 23:16 ` [PATCH 1/4] io-wq: make the io_wq ref counted Jens Axboe
2020-01-23 23:16 ` [PATCH 2/4] io-wq: add 'id' to io_wq Jens Axboe
2020-01-23 23:16 ` [PATCH 3/4] io-wq: allow lookup of existing io_wq with given id Jens Axboe
2020-01-24 9:54 ` Stefan Metzmacher
2020-01-24 16:41 ` Jens Axboe
2020-01-23 23:16 ` [PATCH 4/4] io_uring: add support for sharing kernel io-wq workqueue Jens Axboe
2020-01-24 9:51 ` [PATCHSET 0/4] Add support for shared io-wq backends Stefan Metzmacher
2020-01-24 16:43 ` Jens Axboe
2020-01-24 19:14 ` Stefan Metzmacher
2020-01-24 21:37 ` Jens Axboe
2020-01-24 20:34 ` Pavel Begunkov
2020-01-24 21:38 ` Jens Axboe
2020-01-26 1:51 ` Daurnimator
2020-01-26 15:11 ` Pavel Begunkov
2020-01-26 17:00 ` Jens Axboe
2020-01-27 13:29 ` Pavel Begunkov
2020-01-27 13:39 ` Jens Axboe
2020-01-27 14:07 ` Pavel Begunkov
2020-01-27 19:39 ` Pavel Begunkov
2020-01-27 19:45 ` Jens Axboe
2020-01-27 20:33 ` Jens Axboe
2020-01-27 21:45 ` Pavel Begunkov
2020-01-27 22:40 ` Jens Axboe
2020-01-27 23:00 ` Jens Axboe
2020-01-27 23:17 ` Pavel Begunkov
2020-01-27 23:23 ` Jens Axboe
2020-01-27 23:25 ` Pavel Begunkov
2020-01-27 23:38 ` Jens Axboe
2020-01-28 10:01 ` Stefan Metzmacher
2020-01-28 10:30 ` Pavel Begunkov
2020-01-28 10:35 ` Stefan Metzmacher
2020-01-28 10:51 ` Pavel Begunkov
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=20200123231614.10850-1-axboe@kernel.dk \
--to=axboe@kernel.dk \
--cc=io-uring@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).