From: Bart Van Assche <bvanassche@acm.org>
To: Wang You <wangyoua@uniontech.com>, axboe@kernel.dk
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
hch@lst.de, jaegeuk@kernel.org, fio@vger.kernel.org,
ming.lei@redhat.com, wangxiaohua@uniontech.com
Subject: Re: [PATCH v2 1/2] block: Introduce nr_sched_batch sys interface
Date: Fri, 22 Jul 2022 10:35:37 -0700 [thread overview]
Message-ID: <da0fe451-c036-cd18-7eb2-55c51c104ab5@acm.org> (raw)
In-Reply-To: <20220722095120.371212-2-wangyoua@uniontech.com>
On 7/22/22 02:51, 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.
Do we need this new parameter? How does the performance of reducing
nr_requests compare to configuring nr_sched_batch?
Thanks,
Bart.
next prev parent reply other threads:[~2022-07-22 17:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-22 9:51 [PATCH v2 0/2] Improve mq-deadline performance in HDD Wang You
2022-07-22 9:51 ` [PATCH v2 1/2] block: Introduce nr_sched_batch sys interface Wang You
2022-07-22 17:35 ` Bart Van Assche [this message]
2022-07-23 10:04 ` Wang You
2022-07-22 9:51 ` [PATCH v2 2/2] block/mq-deadline: Prioritize first request Wang You
2022-07-22 17:47 ` Bart Van Assche
2022-07-23 10:59 ` Wang You
2022-07-25 1:48 ` Bart Van Assche
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