From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [RFC 0/9] scrap 24 bytes from io_kiocb
Date: Sun, 12 Jul 2020 12:41:06 +0300 [thread overview]
Message-ID: <[email protected]> (raw)
Make io_kiocb slimmer by 24 bytes mainly by revising lists usage. The
drawback is adding extra kmalloc in draining path, but that's a slow
path, so meh. It also frees some space for the deferred completion path
if would be needed in the future, but the main idea here is to shrink it
to 3 cachelines in the end.
I'm not happy yet with a few details, so that's not final, but it would
be lovely to hear some feedback.
Pavel Begunkov (9):
io_uring: share completion list w/ per-op space
io_uring: rename ctx->poll into ctx->iopoll
io_uring: use inflight_entry list for iopolling
io_uring: use competion list for CQ overflow
io_uring: add req->timeout.list
io_uring: remove init for unused list
io_uring: kill rq->list and allocate it on demand
io_uring: remove sequence from io_kiocb
io_uring: place cflags into completion data
fs/io_uring.c | 188 +++++++++++++++++++++++++++++++-------------------
1 file changed, 116 insertions(+), 72 deletions(-)
--
2.24.0
next reply other threads:[~2020-07-12 9:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-12 9:41 Pavel Begunkov [this message]
2020-07-12 9:41 ` [PATCH 1/9] io_uring: share completion list w/ per-op space Pavel Begunkov
2020-07-12 9:41 ` [PATCH 2/9] io_uring: rename ctx->poll into ctx->iopoll Pavel Begunkov
2020-07-12 9:41 ` [PATCH 3/9] io_uring: use inflight_entry list for iopolling Pavel Begunkov
2020-07-12 9:41 ` [PATCH 4/9] io_uring: use competion list for CQ overflow Pavel Begunkov
2020-07-12 9:41 ` [PATCH 5/9] io_uring: add req->timeout.list Pavel Begunkov
2020-07-12 9:41 ` [PATCH 6/9] io_uring: remove init for unused list Pavel Begunkov
2020-07-12 9:41 ` [PATCH 7/9] io_uring: kill rq->list and allocate it on demand Pavel Begunkov
2020-07-12 9:41 ` [PATCH 8/9] io_uring: remove sequence from io_kiocb Pavel Begunkov
2020-07-12 9:41 ` [PATCH 9/9] io_uring: place cflags into completion data Pavel Begunkov
2020-07-12 15:59 ` [RFC 0/9] scrap 24 bytes from io_kiocb Jens Axboe
2020-07-12 17:34 ` Pavel Begunkov
2020-07-12 20:32 ` Jens Axboe
2020-07-13 8:17 ` Pavel Begunkov
2020-07-13 8:17 ` Pavel Begunkov
2020-07-13 14:12 ` Jens Axboe
2020-07-13 20:45 ` Pavel Begunkov
2020-07-13 21:00 ` Jens Axboe
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 \
[email protected] \
[email protected] \
[email protected] \
[email protected] \
/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