linux-kernel - Re: [PATCH v2 1/2] block: Introduce nr_sched

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Message-Id: <20220723100406.437387-1-wangyoua@uniontech.com>
Date:   Sat, 23 Jul 2022 18:04:06 +0800
From:   Wang You <wangyoua@...ontech.com>
To:     bvanassche@....org
Cc:     axboe@...nel.dk, fio@...r.kernel.org, hch@....de,
        jaegeuk@...nel.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, ming.lei@...hat.com,
        wangxiaohua@...ontech.com, wangyoua@...ontech.com
Subject: Re: [PATCH v2 1/2] block: Introduce nr_sched_batch sys interface

> Do we need this new parameter? How does the performance of reducing 
> nr_requests compare to configuring nr_sched_batch?

It seems I can't get convincing data in the current test conditions, sorry, 
please ignore it unless I can produce valid evidence.

I will reconsider the effect of this modification on a single disk, 
from recent testing it seems that the link to the raid controller has 
a lot of impact.

Thanks,

Wang.