From: Jens Axboe <[email protected]>
To: Felix Moessbauer <[email protected]>
Cc: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected],
[email protected]
Subject: Re: [PATCH 1/1] io_uring/sqpoll: do not allow pinning outside of cpuset
Date: Mon, 09 Sep 2024 09:09:39 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On Mon, 09 Sep 2024 17:00:36 +0200, Felix Moessbauer wrote:
> The submit queue polling threads are userland threads that just never
> exit to the userland. When creating the thread with IORING_SETUP_SQ_AFF,
> the affinity of the poller thread is set to the cpu specified in
> sq_thread_cpu. However, this CPU can be outside of the cpuset defined
> by the cgroup cpuset controller. This violates the rules defined by the
> cpuset controller and is a potential issue for realtime applications.
>
> [...]
Applied, thanks!
[1/1] io_uring/sqpoll: do not allow pinning outside of cpuset
commit: f011c9cf04c06f16b24f583d313d3c012e589e50
Best regards,
--
Jens Axboe
next prev parent reply other threads:[~2024-09-09 15:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-09 15:00 [PATCH 1/1] io_uring/sqpoll: do not allow pinning outside of cpuset Felix Moessbauer
2024-09-09 15:08 ` Jens Axboe
2024-09-09 15:09 ` Jens Axboe [this message]
2024-09-18 3:56 ` Lai, Yi
2024-09-18 6:16 ` Jens Axboe
2024-09-18 6:21 ` Lai, Yi
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