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From: info-vax@ucbvax.ARPA
Newsgroups: fa.info-vax
Subject: VAX/VMS and Chromatics CX1500
Message-ID: <5337@ucbvax.ARPA>
Date: Thu, 7-Mar-85 22:12:32 EST
Article-I.D.: ucbvax.5337
Posted: Thu Mar  7 22:12:32 1985
Date-Received: Sat, 9-Mar-85 07:09:00 EST
Sender: daemon@ucbvax.ARPA
Organization: University of California at Berkeley
Lines: 22

From: CMP.STARCH@UTEXAS-20.ARPA


We recently hooked up our Chromatics CX1500 graphics engine to our 780 via
a DR11-W.  Up to that time, we had it in another building, hooked over a
serial line at 9600 baud.

We have experienced no improvement in the drawing time, since switching to a 
DMA connection.  We are dissapointed, to say the least, since drawing a 
relativly un-complicated map of the world still takes over 4 minutes.  For
a 30k+ piece of equipement (68010 processor, etc), we feel that we could buy
almost any other graphics terminal and improve on the performance.

I would like to hear from people that have the CX1500 on their computer, and
would like to here if someone has a possible explanation for the low 
performance of this gear.  (The same world map can be drawn by our 4800 baud
VT125's in less than 2 Minutes)

Thanks in advance - SteveKneuper
                    cmp.starch@utexas-20

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