linux-kernel - Re: -mm merge plans for 2.6.23

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Message-ID: <20070725081541.GA10005@elte.hu>
Date:	Wed, 25 Jul 2007 10:15:41 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	david@...g.hm, Eric St-Laurent <ericstl34@...patico.ca>,
	Rene Herman <rene.herman@...il.com>,
	Ray Lee <ray-lk@...rabbit.org>,
	Jesper Juhl <jesper.juhl@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	ck list <ck@....kolivas.org>, Paul Jackson <pj@....com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: -mm merge plans for 2.6.23


* Nick Piggin <nickpiggin@...oo.com.au> wrote:

> > > And yet despite my repeated pleas, none of those people has yet 
> > > spent a bit of time with me to help analyse what is happening.
> >
> > btw., it might help to give specific, precise instructions about 
> > what people should do to help you analyze this problem.
> 
> Ray has been the first one to offer (thank you), and yes I have asked 
> him for precise details of info to collect to hopefully work out what 
> is happening with his first problem.

do you mean this paragraph:

| I guess /proc/meminfo, /proc/zoneinfo, /proc/vmstat, /proc/slabinfo 
| before and after the updatedb run with the latest kernel would be a 
| first step. top and vmstat output during the run wouldn't hurt either.

correct? Does "latest kernel" mean v2.6.22.1, or does it have to be 
v2.6.23-rc1? I guess v2.6.22.1 would be fine as this is a VM problem, 
not a scheduling problem.

the following script will gather all the above information for a 10 
seconds interval:

  http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh

Ray, please run this script before the updatedb run, once during the 
updatedb run and once after the updatedb run, and send Nick the 3 files 
it creates. (feel free to Cc: me too)

	Ingo
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