Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!think!mintaka!bloom-beacon!ics.COM!david
From: david@ics.COM
Newsgroups: comp.windows.x
Subject: RE: highly-sensitive servers and window managers
Message-ID: <8912202307.AA04671@melvin.ics.com.ics.com>
Date: 20 Dec 89 23:07:36 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 10

As far as your suggestion goes:
To extend it, developers should use RISC-based machines which are 
extremely picky about unaligned data and dereferenced NULL values.
Users should use HP or DEC (e.g.) workstations which aren't.

More seriously:
We have reports that the X/News server is pretty demanding.
Mwm is reasonably demanding; I have heard the same of gwm.
The R4b server and R4 twm are also reasonable for developers with
access to them.