| To: | Paul Saab <ps@xxxxxx> |
|---|---|
| Subject: | Re: Performance regression between 2.6.32 and 2.6.38 |
| From: | Christoph Hellwig <hch@xxxxxxxxxxxxx> |
| Date: | Sat, 10 Sep 2011 14:26:08 -0400 |
| Cc: | Christoph Hellwig <hch@xxxxxxxxxxxxx>, Joshua Aune <luken@xxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx> |
| In-reply-to: | <CA90F616.8E617%ps@xxxxxx> |
| References: | <20110910060522.GA26968@xxxxxxxxxxxxx> <CA90F616.8E617%ps@xxxxxx> |
| User-agent: | Mutt/1.5.21 (2010-09-15) |
On Sat, Sep 10, 2011 at 06:10:50PM +0000, Paul Saab wrote: > 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. The patch below which is in the queue for Linux 3.2 should fix this issue, and in fact improve behaviour even further.
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