From: Jens Axboe <axboe@kernel.dk>
To: hexue <xue01.he@samsung.com>, asml.silence@gmail.com
Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v9 1/1] io_uring: releasing CPU resources when polling
Date: Fri, 1 Nov 2024 08:06:47 -0600 [thread overview]
Message-ID: <a9b7a578-cf47-474f-8714-297437b385cd@kernel.dk> (raw)
In-Reply-To: <20241101091957.564220-2-xue01.he@samsung.com>
On 11/1/24 3:19 AM, hexue wrote:
> A new hybrid poll is implemented on the io_uring layer. Once IO issued,
> it will not polling immediately, but block first and re-run before IO
> complete, then poll to reap IO. This poll function could be a suboptimal
> solution when running on a single thread, it offers the performance lower
> than regular polling but higher than IRQ, and CPU utilization is also lower
> than polling.
This looks much better now.
Do you have a patch for liburing to enable testing of hybrid polling
as well? Don't care about perf numbers for that, but it should get
exercised.
--
Jens Axboe
next prev parent reply other threads:[~2024-11-01 14:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20241101092007epcas5p29e0c6a6c7a732642cba600bb1c1faff0@epcas5p2.samsung.com>
2024-11-01 9:19 ` [PATCH v9 0/1] " hexue
[not found] ` <CGME20241101092009epcas5p117843070fa5edd377469f13af388fc06@epcas5p1.samsung.com>
2024-11-01 9:19 ` [PATCH v9 1/1] " hexue
2024-11-01 14:06 ` Jens Axboe [this message]
[not found] ` <CGME20241104072914epcas5p2d44c91a277995d5c69bacd4e4308933d@epcas5p2.samsung.com>
2024-11-04 7:29 ` hexue
2024-11-04 16:21 ` Jens Axboe
2024-11-01 14:21 ` [PATCH v9 0/1] " Jens Axboe
2024-11-01 15:18 ` Jens Axboe
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