Path: utzoo!attcan!telly!lethe!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!mcdd1!ar
From: ar@mcdd1 (Alastair Rae)
Newsgroups: comp.sys.encore
Subject: Re: Multimax thrashing
Summary: What's this? Is this what we've been looking for?
Message-ID: <142@mx-1>
Date: 13 Dec 90 16:03:25 GMT
References: <1990Dec3.170300.14750@newcastle.ac.uk> <130064@infocenter.encore.com> <2166@sirius.ucs.adelaide.edu.au>
Organization: McDonnell Douglas,Hemel Hempstead,UK
Lines: 20

francis@cs.ua.oz.au (Francis Vaughan) writes:

> ... 
> I wonder if some of the memory thrashing obseved is due to the problem in
> the memory manager that locks down copy-on-write pages. Any sign of this being
> fixed? Our perception (on our machine anyway) is that this is costing us about
> half the performance of our machine. We are not happy. 
> ...

I hadn't heard of this problem but I'm very interested to find out more.
When you pay through the nose for a big *nix box, you expect big performance!
I've had lots of fun :-( trying to tune our box and had the feeling
that something was wrong somewhere.

Could you elaborate, please, Francis?

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| Alastair Rae | uunet!ukc!mcdd1!ar | +44 442 272071 | *Usual disclaimer* |
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