Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!ginosko!samsung!brutus.cs.uiuc.edu!lll-winken!sun-barr!decwrl!pandora.pa.dec.com!joel
From: joel@pandora.pa.dec.com (Joel McCormack)
Newsgroups: comp.windows.x
Subject: Re: Memory for Pixmaps - DEC Pmax Xcfb2 server.
Keywords: Movie loops, memory, Pixmaps, XImages.
Message-ID: <2022@bacchus.dec.com>
Date: 31 Oct 89 01:49:10 GMT
References: <10833@csli.Stanford.EDU>
Sender: news@decwrl.dec.com
Reply-To: joel@pandora.pa.dec.com (Joel McCormack)
Lines: 15


The server certainly shouldn't dump core unless your swap space is
teeny, so please send me your program and I'll take a look.  You should
be running a later version of the server...UWS 2.1/Ultrix 3.1 is much better.

If you are using a local connection, XPutImage should be running fast
enough (about .9 Megabytes/second) to do okay animation.  Going over the
net, no way.  Is your DISPLAY set to ``:0''?
 
MIT has proposed an extension for a non-transparent shared memory
version of PutImage.  They are getting data rates of 5 Megabytes/second
in their sample implementation, which is about as fast as the DECStation
3100 goes.

- Joel McCormack (decwrl!joel, joel@decwrl.dec.com)