From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Lameter <clameter@sgi.com>
Subject: Re: [patch 21/21] slab defrag: Obsolete SLAB
Date: Thu, 15 May 2008 11:43:40 -0700 (PDT)
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Cc: "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>,
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To: Matthew Wilcox <matthew@wil.cx>
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On Thu, 15 May 2008, Matthew Wilcox wrote:

> > Details of the crash please?
> 
> I don't have any.

Well the amount of information we are getting has always been the main 
factor in delaying this further and further. Sigh.

> > You could just start with 2.6.25.X which already contains the slab 
> > statistics.
> 
> Certainly.  Exactly how does collecting these stats work?  Am I supposed
> to zero the counters after the TPC has done its initial ramp-up?  What
> commands should I run, and at exactly which points?

Compile slabinfo and then do f.e. slabinfo -AD (this is documented in the 
help text provided when enabling statistics).