[lkml]   [2019]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subject[PATCH 0/2] optimise ctx's refs grabbing in io_uring
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(-)


 \ /
  Last update: 2019-12-17 23:29    [W:0.126 / U:2.260 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site