Let cmds to use IOU_F_TWQ_LAZY_WAKE and enable it for nvme passthrough. The result should be same as in test to the original IOU_F_TWQ_LAZY_WAKE [1] patchset, but for a quick test I took fio/t/io_uring with 4 threads each reading their own drive and all pinned to the same CPU to make it CPU bound and got +10% throughput improvement. [1] https://lore.kernel.org/all/cover.1680782016.git.asml.silence@xxxxxxxxx/ Pavel Begunkov (2): io_uring/cmd: add cmd lazy tw wake helper nvme: optimise io_uring passthrough completion drivers/nvme/host/ioctl.c | 4 ++-- include/linux/io_uring.h | 18 ++++++++++++++++-- io_uring/uring_cmd.c | 16 ++++++++++++---- 3 files changed, 30 insertions(+), 8 deletions(-) base-commit: 9a48d604672220545d209e9996c2a1edbb5637f6 -- 2.40.0
