linux-kernel - Re: [PATCH IMPROVEMENT] block, bfq: consider recent past to reduce soft-real-time false positives

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Message-ID: <7d611782-5750-6faf-fac6-8709c75a66ca@kernel.dk>
Date:   Fri, 5 Jan 2018 09:31:44 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Paolo Valente <paolo.valente@...aro.org>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        ulf.hansson@...aro.org, broonie@...nel.org,
        linus.walleij@...aro.org, angeloruocco90@...il.com,
        bfq-iosched@...glegroups.com
Subject: Re: [PATCH IMPROVEMENT] block, bfq: consider recent past to reduce
 soft-real-time false positives

On 12/14/17 11:23 PM, Paolo Valente wrote:
> Hi,
> this patch reduces false positives in the detection of bfq_queues
> associated with soft real-time applications. As such, this patch
> reduces the damages caused by these false positives to other
> applications. The patch proved to be very effective, as detailed in
> the commit message. A sort of counterpart of this patch should follow
> soon, this time for false positives in the detection of cooperating
> processes (processes doing I/O close to each other).
> 
> I guess it is evidently too late for 4.15, so, Jens, please consider
> this patch for 4.16. Of course if the patch turns out to be ok.

Added for 4.16, thanks.

-- 
Jens Axboe