On Mon, 7 May 2001, Matt Dillon wrote:

>     their hands of the whole affair.  A production machine with 128M of ram
>     and 1G of swap is going to go down the tubes performance-wise long
>     before it runs out of swap.  Performance degredation under heavy
>     memory loads is a much more interesting and important problem
>     then swap exhaustion.

Indeed, this is an interesting area. In the process of
researching how to best implement this for Linux I have
found various reasons why both FreeBSD's and NetBSD's
load control systems cannot work in various realistic

The next step is designing a load control system that
does work (not too hard) and having a reliable way of
detecting when exactly the system is thrashing (next
to impossible?).

I'll make a detailed writeup of exactly why FreeBSD's
load control system cannot work and will post it to


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...

http://www.conectiva.com/       http://distro.conectiva.com/

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