Messages in this thread | | | From | Pavel Begunkov <> | Subject | [PATCH 0/2] optimise ctx's refs grabbing in io_uring | Date | Wed, 18 Dec 2019 01:28:37 +0300 |
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Optimise percpu_ref_tryget() by not calling it for each request, but batching it. This gave a measurable performance boost, though with a bit unconventional(/unrealistic?) workload.
There is still one step to add, which is not implemented with patchset, and will amortise the effect calls to io_uring_enter().
rebased on top of for-5.6/io_uring
Pavel Begunkov (2): pcpu_ref: add percpu_ref_tryget_many() io_uring: batch getting pcpu references
fs/io_uring.c | 11 ++++++++--- include/linux/percpu-refcount.h | 24 ++++++++++++++++++++---- 2 files changed, 28 insertions(+), 7 deletions(-)
-- 2.24.0
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