Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!mcsun!ukc!edcastle!cs.ed.ac.uk!ddr
From: ddr@cs.ed.ac.uk (Doug Rogers)
Newsgroups: comp.arch
Subject: Re: Amdahl's Rule
Message-ID: <11397@skye.cs.ed.ac.uk>
Date: 24 May 91 13:29:28 GMT
References: <11299@skye.cs.ed.ac.uk> <13179@pt.cs.cmu.edu>
Sender: nnews@cs.ed.ac.uk
Organization: Department of Computer Science, University of Edinburgh
Lines: 17

In article <13179@pt.cs.cmu.edu>, lindsay@gandalf.cs.cmu.edu (Donald Lindsay) writes:
> In article <11299@skye.cs.ed.ac.uk> ddr@cs.ed.ac.uk (Doug Rogers) writes:
> >The use of RISC machines demands more memory and the use of shared
> >libraries reduces memory needs.
> 
> Surely the ratio of code-to-data shifts towards data as memory size
> increases? I would have thought that this swamped the effects you
> mention.
> 
From our experience of university computer usage, I would disagree. This was shown clearly when the SUN OS 4.0 came in, and a teaching cluster was transformed from unusable to usable. I don't have any figures though on this.


-- 
Douglas Rogers                     JANET: ddr@uk.ac.ed.lfcs
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