| commit | 46ae7eef44f6dfd825a3bcfa43392d3ad9836ada | [log] [tgz] |
|---|---|---|
| author | Pavel Begunkov <asml.silence@gmail.com> | Thu Jan 05 11:22:28 2023 +0000 |
| committer | Jens Axboe <axboe@kernel.dk> | Sun Jan 29 15:17:40 2023 -0700 |
| tree | 8861a0baf334affd023c35b160f33d4ccbe66ba2 | |
| parent | 326a9e482e2134d7a44b7f8f9a721b38c6bbb146 [diff] |
io_uring: optimise non-timeout waiting Unlike the jiffy scheduling version, schedule_hrtimeout() jumps a few functions before getting into schedule() even if there is no actual timeout needed. Some tests showed that it takes up to 1% of CPU cycles. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/89f880574eceee6f4899783377ead234df7b3d04.1672916894.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>