linux-kernel - Re: Re: [PATCH v5] io_uring: Statistics of the true utilization of sq threads.

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Message-ID: <20231225023636.38530-1-xiaobing.li@samsung.com>
Date: Sun, 24 Dec 2023 21:36:36 -0500
From: Xiaobing Li <xiaobing.li@...sung.com>
To: axboe@...nel.dk
Cc: asml.silence@...il.com, linux-kernel@...r.kernel.org,
	io-uring@...r.kernel.org, kun.dou@...sung.com, peiwei.li@...sung.com,
	joshi.k@...sung.com, kundan.kumar@...sung.com, wenwen.chen@...sung.com,
	ruyi.zhang@...sung.com, xiaobing.li@...sung.com
Subject: Re: Re: [PATCH v5] io_uring: Statistics of the true utilization of
 sq threads.

On 12/22/23 07:31 AM, Jens Axboe wrote:
> Yep that would work, just leave the stats calculation to the tool
> querying it. Which is really how it should be.
>
>> In addition, on register opcode - generally it is used for resource like
>> buffers, handles etc.. I am not sure how that can help here. If you have
>> something in mind, could you please elaborate in more detail?
>
> It's also a bit of a dumping ground for any kind of out-of-band
> mechanism, so it would work fine for something like this too. But since
> we already have fdinfo and with your idea of just logging work and total
> time, then we should probably just stick with that.

Thanks for explained. I'll send out a v6.