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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-08-25 01:53:36 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-25 02:16:20 +0300 |
| commit | 0aa7aa5f766933d4f91b22d9658cd688e1f15dab (patch) | |
| tree | 099d4801e6657eb0f0663ffb149c73fb9e97ca9e /include/linux/io_uring_types.h | |
| parent | c9def23dde5238184777340ad811e4903f216a2d (diff) | |
| download | linux-0aa7aa5f766933d4f91b22d9658cd688e1f15dab.tar.xz | |
io_uring: move multishot cqe cache in ctx
We cache multishot CQEs before flushing them to the CQ in
submit_state.cqe. It's a 16 entry cache totalling 256 bytes in the
middle of the io_submit_state structure. Move it out of there, it
should help with CPU caches for the submission state, and shouldn't
affect cached CQEs.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/dbe1f39c043ee23da918836be44fcec252ce6711.1692916914.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/io_uring_types.h')
| -rw-r--r-- | include/linux/io_uring_types.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index 5de5dffe29df..01bdbc223edd 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -176,7 +176,6 @@ struct io_submit_state { unsigned short submit_nr; unsigned int cqes_count; struct blk_plug plug; - struct io_uring_cqe cqes[16]; }; struct io_ev_fd { @@ -307,6 +306,8 @@ struct io_ring_ctx { unsigned cq_last_tm_flush; } ____cacheline_aligned_in_smp; + struct io_uring_cqe completion_cqes[16]; + /* IRQ completion list, under ->completion_lock */ struct io_wq_work_list locked_free_list; unsigned int locked_free_nr; |