info-vax@ucbvax.ARPA (03/08/85)
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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