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- Newsgroups: comp.sys.sgi
- Path: sparky!uunet!stanford.edu!microunity!jsw
- From: jsw@microunity.com (Jeff Weinstein)
- Subject: Re: PI video boards and X performance
- Message-ID: <1992Sep9.175102.21690@microunity.com>
- Sender: usenet@microunity.com (news)
- Nntp-Posting-Host: rgb.microunity.com
- Organization: MicroUnity Systems Engineering, Inc.
- References: <laic2eINNb8b@bovina.cs.utexas.edu> <1992Sep7.020221.14835@microunity.com> <laqrqlINN7js@bovina.cs.utexas.edu>
- Date: Wed, 9 Sep 1992 17:51:02 GMT
- Lines: 30
-
- In article <laqrqlINN7js@bovina.cs.utexas.edu>, ted@cs.utexas.edu (Ted Woodward) writes:
- > In article <1992Sep7.020221.14835@microunity.com> jsw@microunity.com (Jeff Weinstein) writes:
- > >In article <laic2eINNb8b@bovina.cs.utexas.edu>, ted@cs.utexas.edu (Ted Woodward) writes:
- > >> Our project is in X only. No GL. It uses XDrawLine and various XFill
- > >> routines. Will choosing a TG or XS24 over the G make any performance
- > >> difference in this case? If so, how much for each?
- >
- > > You will definitely get the best performance from XS24. TG will give
- > >the same X performance as G, since X specific microcode doesn't use
- > >the turbo option.
- >
- > OK, gotcha. But how much faster is the XS24 than the G+? We're using SMS
- > (Softcopy Mapping System) to put up maps, etc, and I'd like to know if there
- > would be a noticible improvement going with the XS24, especially since it's
- > about 8K more than the G+, and we are dual headed...
-
- The answer here is "it depends". It will depend on how graphics limited
- your applications is, what sorts of primitives you use, and how your app is
- coded. Drawing zero width lines should be much faster, and filling should
- be somewhat faster to much faster depending upon the primitive. The best
- thing for you to do is to run your application on both types of hardware
- and compare the difference.
-
- --Jeff
-
- --
- Jeff Weinstein - X Protocol Police
- MicroUnity Systems Engineering, Inc.
- jsw@microunity.com
- Any opinions expressed above are mine.
-