From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>, io-uring@vger.kernel.org
Subject: [PATCH for-next 0/4] singly linked list for chains
Date: Thu, 15 Oct 2020 22:11:20 +0100 [thread overview]
Message-ID: <cover.1602795685.git.asml.silence@gmail.com> (raw)
see [3/4] and [4/4] for motivation, the other two are just preps.
I wasn't expecting to find performance difference, but my naive nop
test yeilds 5030 vs 5160 KIOPS, before and after [3/4] correspondingly.
The test is submitting 32 linked nops and waits for them to complete.
The testing is tuned for consistentcy, and the results are consistent
across reboots.
Pavel Begunkov (4):
io_uring: inline io_fail_links()
io_uring: simplify linked timeout cancel
io_uring: link requests with singly linked list
io_uring: toss io_kiocb fields for better caching
fs/io_uring.c | 202 +++++++++++++++++++++-----------------------------
1 file changed, 83 insertions(+), 119 deletions(-)
--
2.24.0
next reply other threads:[~2020-10-15 21:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-15 21:11 Pavel Begunkov [this message]
2020-10-15 21:11 ` [PATCH 1/4] io_uring: inline io_fail_links() Pavel Begunkov
2020-10-15 21:11 ` [PATCH 2/4] io_uring: simplify linked timeout cancel Pavel Begunkov
2020-10-15 21:11 ` [PATCH 3/4] io_uring: link requests with singly linked list Pavel Begunkov
2020-10-15 21:11 ` [PATCH 4/4] io_uring: toss io_kiocb fields for better caching Pavel Begunkov
2020-10-15 21:15 ` [PATCH for-next 0/4] singly linked list for chains Pavel Begunkov
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