linux-kernel - Re: [PATCH 0/2] block: improve the share tag set performance

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Message-ID: <8947b1be-3dfb-4c9f-469f-d1c31d1ec994@acm.org>
Date:   Wed, 10 May 2023 15:56:02 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     axboe@...nel.dk
Cc:     Ed Tsai <ed.tsai@...iatek.com>, linux-block@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        martin.petersen@...cle.com, stanley.chu@...iatek.com,
        peter.wang@...iatek.com, chun-hung.wu@...iatek.com,
        alice.chao@...iatek.com, powen.kao@...iatek.com,
        naomi.chu@...iatek.com, wsd_upstream@...iatek.com
Subject: Re: [PATCH 0/2] block: improve the share tag set performance

On 5/8/23 23:52, Ed Tsai wrote:
> The tag allocation is limited by the number of active queues and a
> queue is marked as inactive by the queue timeout worker after up to 30Hz
> by default.
> 
> UFS devices have multiple logical units, and they can limit the depth of
> data LUNs by the fair tag sharing algorithm. Make the fair tag sharing
> configurable and improve the performance for UFS devices.
> 
> See also https://lore.kernel.org/all/20230103195337.158625-1-bvanassche@acm.org

Hi Jens,

This patch series is slightly more complicated than the patch that I 
posted in January. Do you prefer the approach of this patch series or 
rather the approach of the patch that I posted in January?

Thank you,

Bart.