linux-kernel - Re: [PATCH v5 00/14] blk-mq: Reduce static requests memory footprint for shared sbitmap

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Message-ID: <597c4cbe-ca6c-53e5-1139-be2ca0fbb677@acm.org>
Date:   Thu, 7 Oct 2021 20:11:08 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Kashyap Desai <kashyap.desai@...adcom.com>,
        John Garry <john.garry@...wei.com>,
        Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        ming.lei@...hat.com, hare@...e.de, linux-scsi@...r.kernel.org
Subject: Re: [PATCH v5 00/14] blk-mq: Reduce static requests memory footprint
 for shared sbitmap

On 10/7/21 13:31, Kashyap Desai wrote:
> I tested this patchset on 5.15-rc4 (master) -
> https://github.com/torvalds/linux.git
> 
> #1 I noticed some performance regression @mq-deadline scheduler which is not
> related to this series. I will bisect and get more detail about this issue
> separately.

Please test this patch series on top of Jens' for-next branch 
(git://git.kernel.dk/linux-block). The mq-deadline performance on Jens' 
for-next branch should match that of kernel v5.13.

Thanks,

Bart.