Subject: How does NetBSD use his swap ?
To: Port Mac68k NetBSD <port-mac68k@NetBSD.ORG>
From: Vincent BARAT <Vincent.Barat@ansf.alcatel.fr>
List: port-mac68k
Date: 03/23/1998 07:28:07
Hello,

I upgraded my Centris 650 from 16 Mo to 32 Mo last night, and of course
saw a very big improvement of NetBSD performances under X11 and XEmacs 20.3...

I tried to overload my mac, just to see how it handles that load, by starting
several XEmacs and Mosaic one after another, and using xosview to monitor my system state.

What I don't understand is the following:

After 1 AfterStep, 2 XEmacs and 2 Mosaic, my real memory was full
, but swap was not used at all. With 2 more Mosaic and 2 more XEmacs,
my virtual memory, i.e. my swap (25 Mo according to xosview, and I believe it because
it is the size of my swap partition :-)) was full.

At this point, I thought that I would not be able to start another application, but
I was able to start at least 2 more XEmacs and 1 more Mosaic. So my question is:
Where does NetBSD take this new memory ?

Also, another question:

If I manage to really overload virtual memory, what would be the behavior of NetBSD ?

--
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Vincent BARAT

"Contrary to popular belief, Unix is user friendly.
 It just happens to be selective about who it makes friends with."

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