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From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org, netdev@vger.kernel.org
Cc: kuba@kernel.org, olivier@trillion01.com
Subject: [PATCHSET v16 0/7] io_uring: add napi busy polling support
Date: Tue,  6 Feb 2024 09:30:02 -0700	[thread overview]
Message-ID: <20240206163422.646218-1-axboe@kernel.dk> (raw)

Hi,

I finally got around to testing this patchset in its current form, and
results look fine to me. It Works. Using the basic ping/pong test that's
part of the liburing addition, without enabling NAPI I get:

Stock settings, no NAPI, 100k packets:

 rtt(us) min/avg/max/mdev = 31.730/37.006/87.960/0.497

 and with -t10 -b enabled:

 rtt(us) min/avg/max/mdev = 23.250/29.795/63.511/1.203

In short, this patchset enables per io_uring NAPI enablement, rather
than need to enable that globally. This allows targeted NAPI usage with
io_uring.

Here's Stefan's v15 posting, which predates this one:

https://lore.kernel.org/io-uring/20230608163839.2891748-1-shr@devkernel.io/

Patches are on top of the current 6.9 io_uring branch.

Changes since v15
- Rebase on current tree
- Various cleanups
- Rename NAPI_F_NO_SCHED to NAPI_F_END_ON_RESCHED

-- 
Jens Axboe


             reply	other threads:[~2024-02-06 16:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-06 16:30 Jens Axboe [this message]
2024-02-06 16:30 ` [PATCH 1/7] net: split off __napi_busy_poll from napi_busy_poll Jens Axboe
2024-02-06 16:30 ` [PATCH 2/7] net: add napi_busy_loop_rcu() Jens Axboe
2024-02-06 16:30 ` [PATCH 3/7] io-uring: move io_wait_queue definition to header file Jens Axboe
2024-02-06 16:30 ` [PATCH 4/7] io-uring: add napi busy poll support Jens Axboe
2024-02-06 16:30 ` [PATCH 5/7] io-uring: add sqpoll support for napi busy poll Jens Axboe
2024-02-06 16:30 ` [PATCH 6/7] io_uring: add register/unregister napi function Jens Axboe
2024-02-06 16:30 ` [PATCH 7/7] io_uring: add prefer busy poll to register and unregister napi api Jens Axboe
2024-02-09 18:50 ` [PATCHSET v16 0/7] io_uring: add napi busy polling support patchwork-bot+netdevbpf
2024-02-09 18:51 ` Jakub Kicinski
2024-02-09 18:59   ` Jens Axboe

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