From: Jens Axboe <axboe@fb.com>
To: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Richard Weinberger <richard@nod.at>, <hch@infradead.org>,
<dedekind1@gmail.com>
Cc: <dwmw2@infradead.org>, <computersforpeace@gmail.com>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] UBI: Block: Add blk-mq support
Date: Sun, 2 Nov 2014 18:18:45 -0700 [thread overview]
Message-ID: <5456D7F5.10308@fb.com> (raw)
In-Reply-To: <5456A787.5060104@free-electrons.com>
On 2014-11-02 14:52, Ezequiel Garcia wrote:
> Hi Richard,
>
> On 11/02/2014 10:00 AM, Richard Weinberger wrote:
>> Convert the driver to blk-mq.
>>
>
> Maybe you can explain a bit better what's this all about?
>
> Both the commit that introduces blk-mq and the paper on it talk about
> high IOPS devices, multi-core, NUMA systems. I'm not sure this is the
> case for UBI-based devices.
The goal of blk-mq was to solve the issues around those systems, while
at the same time provide a more modern infrastructure in general. It was
never the intent to make blk-mq exclusive to higher end systems or
devices, in fact quite the opposite. The goal is to slowly deprecate the
old IO stack and switch everything (as far as we can) to blk-mq.
--
Jens Axboe
next prev parent reply other threads:[~2014-11-03 1:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-02 13:00 [PATCH] UBI: Block: Add blk-mq support Richard Weinberger
2014-11-02 21:52 ` Ezequiel Garcia
2014-11-02 22:21 ` Richard Weinberger
2014-11-02 22:27 ` Ezequiel Garcia
2014-11-02 22:49 ` Richard Weinberger
2014-11-03 1:20 ` Jens Axboe
2014-11-03 1:18 ` Jens Axboe [this message]
2014-11-03 5:03 ` Ming Lei
2014-11-03 13:58 ` Ezequiel Garcia
2014-11-03 18:22 ` Richard Weinberger
2014-11-03 8:18 ` Christoph Hellwig
2014-11-03 8:23 ` Richard Weinberger
2014-11-07 9:46 ` Artem Bityutskiy
2014-11-07 9:53 ` Richard Weinberger
2014-11-07 9:56 ` Artem Bityutskiy
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