linux-kernel - Re: MMTests 0.01

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Date:	Fri, 5 Aug 2011 09:01:33 +0100
From:	Mel Gorman <mgorman@...e.de>
To:	Pintu Agarwal <pintu_agarwal@...oo.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: MMTests 0.01

On Thu, Aug 04, 2011 at 11:38:22PM -0700, Pintu Agarwal wrote:
> Dear Mel Gorman,
>  
> Thank you very much for this MMTest. 
> It will be very helpful for me for all my needs.
> I was looking forward for these kind of mm test utilities.
>  
> Just wanted to know, if any of these utilities also covers
> anti-fragmentation represent of the various page state in the form
> of jpeg image?

No, that particular script was not included as it needs a kernel patch
to be really useful and depends on parts of VM Regress that were very
ugly. As I've said before, I generally use unusable free space index
and fragmentation index if I'm trying to graph fragmentation-related
information. To record it, I use the "extfrag" monitor in monitors/
. It uses other helpers of which fraganalysis/show-buddyinfo is the
most important as it is the one that can read either /proc/buddyinfo
or use /proc/kpagefrags to build a more accurate picture.

-- 
Mel Gorman
SUSE Labs
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