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Re: Performance regression between 2.6.32 and 2.6.38

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Joshua Aune <luken@xxxxxxxxxxxx>
Subject: Re: Performance regression between 2.6.32 and 2.6.38
From: Paul Saab <ps@xxxxxx>
Date: Sat, 10 Sep 2011 18:10:50 +0000
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Cc: "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
In-reply-to: <20110910060522.GA26968@xxxxxxxxxxxxx>
Thread-index: AcxvT+2VX2CITLKmSyuvmz5ryCC0jwAal82AAAqqyoA=
Thread-topic: Performance regression between 2.6.32 and 2.6.38
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On 9/9/11 11:05 PM, "Christoph Hellwig" <hch@xxxxxxxxxxxxx> wrote:

>On Fri, Sep 09, 2011 at 06:23:54PM -0600, Joshua Aune wrote:
>> Are there any mount options or other tests that can be run in the
>>failing configuration that would be helpful to isolate this further?
>
>The best thing would be to bisect it down to at least a kernel release,
>and if possible to a -rc or individual change (the latter might start
>to get hard due to various instabilities in early -rc kernels)

487f84f3 is where the regression was introduced.

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