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Date: Sun, 11 Feb 2001 12:44:00 -0300 (BRST)
From: Rik van Riel <riel@conectiva.com.br>
To: Mike Galbraith <mikeg@wen-online.de>
cc: Marcelo Tosatti <marcelo@conectiva.com.br>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Linux 2.4.1-ac7
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On Sun, 11 Feb 2001, Mike Galbraith wrote:
> On Sun, 11 Feb 2001, Mike Galbraith wrote:
> 
> > Something else I see while watching it run:  MUCH more swapout than
> > swapin.  Does that mean we're sending pages to swap only to find out
> > that we never need them again?
> 
> (numbers might be more descriptive)
> 
> user  :       0:07:21.70  54.3%  page in :   142613
> nice  :       0:00:00.00   0.0%  page out:   155454
> system:       0:03:40.63  27.1%  swap in :    56334
> idle  :       0:02:30.50  18.5%  swap out:   149872
> uptime:       0:13:32.83         context :   519726

Indeed, in this case we send a lot more pages to swap
than we read back in from swap, this means that the
data is still sitting in swap space and was never needed
again.

regards,

Rik
--
Linux MM bugzilla: http://linux-mm.org/bugzilla.shtml

Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...

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