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| author | David Wei <[email protected]> | 2024-11-20 22:14:52 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2024-11-21 14:11:00 +0000 |
| commit | f46b9cdb22f7a167c36b6bcddaef7e8aee2598fa (patch) | |
| tree | 77367fc483f6da2618919fbb331a2964cc09324f /drivers/cdx/controller/cdx_controller.c | |
| parent | io_uring: add io_local_work_pending() (diff) | |
| download | kernel-f46b9cdb22f7a167c36b6bcddaef7e8aee2598fa.tar.gz kernel-f46b9cdb22f7a167c36b6bcddaef7e8aee2598fa.zip | |
io_uring: limit local tw done
Instead of eagerly running all available local tw, limit the amount of
local tw done to the max of IO_LOCAL_TW_DEFAULT_MAX (20) or wait_nr. The
value of 20 is chosen as a reasonable heuristic to allow enough work
batching but also keep latency down.
Add a retry_llist that maintains a list of local tw that couldn't be
done in time. No synchronisation is needed since it is only modified
within the task context.
Signed-off-by: David Wei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/cdx/controller/cdx_controller.c')
0 files changed, 0 insertions, 0 deletions