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Date: Thu, 15 May 2008 20:29:26 +0200
From: "Vegard Nossum" <vegard.nossum@gmail.com>
To: "Matthew Wilcox" <matthew@wil.cx>
Subject: Re: [patch 21/21] slab defrag: Obsolete SLAB
Cc: "Christoph Lameter" <clameter@sgi.com>,
       "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
       "Andi Kleen" <andi@firstfloor.org>,
       "Pekka Enberg" <penberg@cs.helsinki.fi>,
       "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com>,
       "Rik van Riel" <riel@redhat.com>, akpm@linux-foundation.org,
       linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
       "Mel Gorman" <mel@skynet.ie>, mpm@selenic.com
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On Thu, May 15, 2008 at 7:49 PM, Matthew Wilcox <matthew@wil.cx> wrote:
> On Thu, May 15, 2008 at 10:05:35AM -0700, Christoph Lameter wrote:
>> Thanks for using the slab statistics. I wish I had these numbers for the
>> TPC benchmark. That would allow us to understand what is going on while it
>> is running.
>
> Hang on, you want slab statistics for the TPC run?  You didn't tell me
> that.  We're trying to gather oprofile data (and having trouble because
> the machine crashes when we start using oprofile -- this is with the git
> tree you/pekka put together for us to test).

Hi,

oprofile was recently fixed, maybe try cherry-picking these will help:

http://git.kernel.org/?p=linux/kernel/git/smurf/linux-trees.git;a=commit;h=7ded2dcf5f2c30889d7ac743ed64fff272ec190d
http://git.kernel.org/?p=linux/kernel/git/smurf/linux-trees.git;a=commit;h=08bc5caced1f322255f44880529a651e204a38eb
http://git.kernel.org/?p=linux/kernel/git/smurf/linux-trees.git;a=commit;h=2b56af59ed24d25be0282de9ae98c290e03a7dd9

Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036