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* [PATCH v3 0/3] improvements for multi-shot poll requests
@ 2021-10-25  5:38 Xiaoguang Wang
  2021-10-25  5:38 ` [PATCH v3 1/3] io_uring: refactor event check out of __io_async_wake() Xiaoguang Wang
                   ` (4 more replies)
  0 siblings, 5 replies; 19+ messages in thread
From: Xiaoguang Wang @ 2021-10-25  5:38 UTC (permalink / raw)
  To: io-uring; +Cc: axboe, asml.silence

Echo_server codes can be clone from:
https://codeup.openanolis.cn/codeup/storage/io_uring-echo-server.git
branch is xiaoguangwang/io_uring_multishot. There is a simple HOWTO
in this repository.

Usage:
In server: port 10016, 1000 connections, packet size 16 bytes, and
enable fixed files.
  taskset -c 10 io_uring_echo_server_multi_shot  -f -p 10016 -n 1000 -l 16

In client:
  taskset -c 13,14,15,16 ./echo -addr 11.238.147.21:10016 -n 1000 -size 16

Before this patchset, the tps is like below:
1:15:53 req: 1430425, req/s: 286084.693
11:15:58 req: 1426021, req/s: 285204.079
11:16:03 req: 1416761, req/s: 283352.146
11:16:08 req: 1417969, req/s: 283165.637
11:16:13 req: 1424591, req/s: 285349.915
11:16:18 req: 1418706, req/s: 283738.725
11:16:23 req: 1411988, req/s: 282399.052
11:16:28 req: 1419097, req/s: 283820.477
11:16:33 req: 1417816, req/s: 283563.262
11:16:38 req: 1422461, req/s: 284491.702
11:16:43 req: 1418176, req/s: 283635.327
11:16:48 req: 1414525, req/s: 282905.276
11:16:53 req: 1415624, req/s: 283124.140
11:16:58 req: 1426435, req/s: 284970.486

with this patchset:
2021/09/24 11:10:01 start to do client
11:10:06 req: 1444979, req/s: 288995.300
11:10:11 req: 1442559, req/s: 288511.689
11:10:16 req: 1427253, req/s: 285450.390
11:10:21 req: 1445236, req/s: 288349.853
11:10:26 req: 1423949, req/s: 285480.941
11:10:31 req: 1445304, req/s: 289060.815
11:10:36 req: 1441036, req/s: 288207.119
11:10:41 req: 1441117, req/s: 288220.695
11:10:46 req: 1441451, req/s: 288292.731
11:10:51 req: 1438801, req/s: 287759.157
11:10:56 req: 1433227, req/s: 286646.338
11:11:01 req: 1438307, req/s: 287661.577

about 1.3% tps improvements.

Changes in v3:
  Rebase to for-5.16/io_uring.

Changes in v2:
  I dropped the poll request completion batching patch in V1, since
it shows performance fluctuations, hard to say whether it's useful.

Xiaoguang Wang (3):
  io_uring: refactor event check out of __io_async_wake()
  io_uring: reduce frequent add_wait_queue() overhead for multi-shot
    poll request
  io_uring: don't get completion_lock in io_poll_rewait()

 fs/io_uring.c | 131 +++++++++++++++++++++++++++++++---------------------------
 1 file changed, 70 insertions(+), 61 deletions(-)

-- 
2.14.4.44.g2045bb6


^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-10-29 18:29 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-10-25  5:38 [PATCH v3 0/3] improvements for multi-shot poll requests Xiaoguang Wang
2021-10-25  5:38 ` [PATCH v3 1/3] io_uring: refactor event check out of __io_async_wake() Xiaoguang Wang
2021-10-25  9:35   ` Praveen Kumar
2021-10-25  5:38 ` [PATCH v3 2/3] io_uring: reduce frequent add_wait_queue() overhead for multi-shot poll request Xiaoguang Wang
2021-10-28 19:21   ` Pavel Begunkov
2021-10-29  2:57     ` Xiaoguang Wang
2021-10-29 10:02       ` Pavel Begunkov
2021-10-29 13:37         ` Xiaoguang Wang
2021-10-29 13:47           ` Pavel Begunkov
2021-10-29 14:12           ` Pavel Begunkov
2021-10-29 14:34             ` Xiaoguang Wang
2021-10-25  5:38 ` [PATCH v3 3/3] io_uring: don't get completion_lock in io_poll_rewait() Xiaoguang Wang
2021-10-28 19:26   ` Pavel Begunkov
2021-10-29  5:59     ` Xiaoguang Wang
2021-10-28 18:19 ` [PATCH v3 0/3] improvements for multi-shot poll requests Jens Axboe
2021-10-29 18:29   ` Jens Axboe
2021-10-28 18:19 ` Jens Axboe
2021-10-28 19:01   ` Pavel Begunkov
2021-10-28 19:04     ` Pavel Begunkov

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