linux-kernel - Re: [PATCH 1/2] block: Introduce nr_sched

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Message-ID: <21e7c959-6365-8029-d26d-985ff888333e@acm.org>
Date:   Wed, 20 Jul 2022 09:20:42 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Wang You <wangyoua@...ontech.com>, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        hch@....de, jaegeuk@...nel.org, fio@...r.kernel.org,
        ming.lei@...hat.com, wangxiaohua@...ontech.com
Subject: Re: [PATCH 1/2] block: Introduce nr_sched_batch sys interface

On 7/20/22 02:30, Wang You wrote:
> The function of this patch is to add an nr_sched_batch interface under
> /sys/block/sdx/queue/, which can be used to set the number of batching
> requests. Of course, the default value is nr_requests and will follow
> nr_request when it has not been changed.

How can reducing the number of batched requests increase performance?

Please provide performance numbers.

Thanks,

Bart.