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Date: Wed, 18 Jul 2001 16:50:37 -0300 (BRT)
From: Marcelo Tosatti <marcelo@conectiva.com.br>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Linus Torvalds <torvalds@transmeta.com>,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: Inclusion of zoned inactive/free shortage patch 
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On Wed, 18 Jul 2001, Rik van Riel wrote:

> On Tue, 17 Jul 2001, Marcelo Tosatti wrote:
> 
> > The following patch (against 2.4.6-ac2, already merged in 2.4.6-ac3) adds
> > specific perzone inactive/free shortage handling code.
> 
> Marcelo, now that you have the nice VM statistics
> patch, do you have some numbers on how this patch
> affects the system, 

Yes. 

With the old code, I've seen zone specific shortages which caused the
kernel to free/deactivate pages from all zones.

> or is this patch based on guesswork ?  ;)

Even if I did not had the stats, its senseless to free/deactivate pages
from zones which do not need to.
 
The old behaviour was fundamentally broken.

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