Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

From: Balbir Singh
Date: Tue Apr 29 2008 - 12:47:06 EST


Hugh Dickins wrote:
> On Tue, 29 Apr 2008, Ross Biro wrote:
>> On Tue, Apr 29, 2008 at 10:52 AM, Balbir Singh
>> <balbir@xxxxxxxxxxxxxxxxxx> wrote:
>>> Hmm.. strange.. I don't remember the overhead being so bad (I'll
>>> relook at my old numbers). I'll try and git-bisect this one
>> I'm checking 2.6.24 now. A quick run of 2.6.25-rc9 without fake numa
>> showed no real change.
>
> Worth checking 2.6.24, yes. But you've already made it clear that
> you do NOT have mem cgroups in your 2.6.25-rc9, so Balbir (probably)
> need not worry about your regression: my guess was wrong on that.
>

Aah.. Yes... but I am definitely interested in figuring out the root cause for
the regression.

--
Warm Regards,
Balbir Singh
Linux Technology Center
IBM, ISTL
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