linux-kernel - Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

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Message-ID: <d43160c70804300616v6eb89ea8re22af1956b11f012@mail.gmail.com>
Date:	Wed, 30 Apr 2008 09:16:15 -0400
From:	"Ross Biro" <rossb@...gle.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	"Hugh Dickins" <hugh@...itas.com>, linux-mm@...ck.org,
	lkml <linux-kernel@...r.kernel.org>,
	"Kamalesh Babulal" <kamalesh@...ux.vnet.ibm.com>
Subject: Re: Page Faults slower in 2.6.25-rc9 than 2.6.23

On Tue, Apr 29, 2008 at 1:00 PM, Ross Biro <rossb@...gle.com> wrote:
> > Aah.. Yes... but I am definitely interested in figuring out the root cause for
>  > the regression.
>
>  I can't reproduce the 2.6.23 results.  I'm going to run the benchmarks
>  a few more times, but I'm suspecting something changed with the
>  hardware.

The 2.6.23 results have been consistant with 2.6.24 results and
lmbench has crashed my test machine at least once.  I'm guessing some
sort of memory error causing a lot of ECC and slowing things down.

    Ross
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