io_uring: optimize io_uring_task layout

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task_work bits of io_uring_task are split into two cache lines causing
extra cache bouncing, place them into a separate cache line. Also move
the most used submission path fields closer together, so there are hot.

Cc: stable@vger.kernel.org # 5.15+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2022-06-20 15:27:35 +01:00 • committed by Jens Axboe

parent bce5d70cd6

commit 4a0fef6278

1 changed files with 18 additions and 16 deletions

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io_uring/tctx.h

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