Date: Wed, 5 Oct 2016 09:12:18 -0400
From: Vivek Goyal <vgoyal@redhat.com>
To: Paolo Valente <paolo.valente@unimore.it>
Cc: Tejun Heo <tj@kernel.org>, Shaohua Li <shli@fb.com>,
        linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
        Jens Axboe <axboe@fb.com>, Kernel-team@fb.com, jmoyer@redhat.com,
        Mark Brown <broonie@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        Ulf Hansson <ulf.hansson@linaro.org>
Subject: Re: [PATCH V3 00/11] block-throttle: add .high limit
Message-ID: <20161005131218.GB17339@redhat.com>
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On Wed, Oct 05, 2016 at 02:37:00PM +0200, Paolo Valente wrote:

[..]
> Anyway, to avoid going on with trying speculations and arguments, let
> me retry with a practical proposal.  BFQ is out there, free.  Let's
> just test, measure and check whether we have already a solution to
> the problems you/we are still trying to solve in Linux.

Hi Paolo,

Does BFQ implementaiton scale for fast storage devices using blk-mq
interface. We will want to make sure that locking and other overhead of
BFQ is very minimal so that overall throughput does not suffer.

Vivek