linux-kernel - Re: [PATCH V2 00/22] Replace the CFQ I/O Scheduler with BFQ

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Message-ID: <CACRpkdZjMcOyn6C-xV3yLsQM0hxZ1JUMGmmS8VqaDpx1xiL1ZA@mail.gmail.com>
Date:   Thu, 1 Sep 2016 10:39:46 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Christoph Hellwig <hch@...radead.org>, Tejun Heo <tj@...nel.org>,
        Jens Axboe <axboe@...nel.dk>,
        Paolo Valente <paolo.valente@...aro.org>,
        linux-block@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Omar Sandoval <osandov@...com>
Subject: Re: [PATCH V2 00/22] Replace the CFQ I/O Scheduler with BFQ

On Thu, Sep 1, 2016 at 12:09 AM, Mark Brown <broonie@...nel.org> wrote:

>  - Do some benchmarks on the current status of the various branches on
>    relevant hardware (including trying to convert some of these slower
>    devices to blk-mq and seeing what happens).  Linus has been working
>    on this already in the context of MMC.

I'm trying to do a patch switching MMC to use blk-mq, so I can
benchmark performance before/after this.

While we expect mq to perform worse on single-hardware-queue
devices like these, we don't know until we tried, so I'm trying.

Yours,
Linus Walleij