linux-kernel - Re: [PATCH V4 00/15] blk-throttle: add .high limit

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Message-ID: <6f33c69f-f382-1515-d83d-f1109f982ab3@sandisk.com>
Date:   Tue, 15 Nov 2016 11:53:39 -0800
From:   Bart Van Assche <bart.vanassche@...disk.com>
To:     Shaohua Li <shli@...com>,
        Bart Van Assche <bart.vanassche@...disk.com>
CC:     "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Kernel-team@...com" <Kernel-team@...com>,
        "axboe@...com" <axboe@...com>, "tj@...nel.org" <tj@...nel.org>,
        "vgoyal@...hat.com" <vgoyal@...hat.com>
Subject: Re: [PATCH V4 00/15] blk-throttle: add .high limit

On 11/14/2016 05:28 PM, Shaohua Li wrote:
> On Mon, Nov 14, 2016 at 05:18:28PM -0800, Bart Van Assche wrote:
>> Unless someone can convince me of the opposite I think that coming up with
>> an algorithm for estimating I/O cost is essential to guarantee I/O fairness
>> without requesting users to perform complicated parameter configurations.
>
> That's what I tried before:
> http://marc.info/?l=linux-kernel&m=145617863208940&w=2

That URL refers to v2 of this patch series. Sorry but I have not found 
the I/O cost estimation algorithm I was referring to in v2 of this patch 
series.

Bart.