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| author |   Pavel Begunkov <asml.silence@gmail.com> | 2021-06-14 23:37:26 +0100 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-06-15 15:38:40 -0600 |
| commit | 5e159204d7edd5bd329e8cdb419dbd81d25751e0 (patch) | |
| tree | e247df6ec86a84c9144e128fc50cda1c089ae6cc /tools/perf/scripts/python/stackcollapse.py | |
| parent | io_uring: optimise completion timeout flushing (diff) | |
| download | wireguard-linux-5e159204d7edd5bd329e8cdb419dbd81d25751e0.tar.xz wireguard-linux-5e159204d7edd5bd329e8cdb419dbd81d25751e0.zip | |
io_uring: small io_submit_sqe() optimisation
submit_state.link is used only to assemble a link and not used for
actual submission, so clear it before io_queue_sqe() in io_submit_sqe(),
awhile it's hot and in caches and queueing doesn't spoil it. May also
potentially help compiler with spilling or to do other optimisations.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1579939426f3ad6b55af3005b1389bbbed7d780d.1623709150.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions