[comp.sys.sgi] Lemons

siegel@hc.DSPO.GOV (josh Siegel) (08/11/88)

Has anybody else been having problems with 4D/70GT's and foursight?!?

Lets all get together and send a letter to SGI....

				--Josh Siegel
-- 
Josh Siegel		(siegel@hc.dspo.gov)
I like using a C-47A "puff dragon" to go shooting beer cans with.

phil@BRL.MIL (Phil Dykstra) (08/13/88)

> The biggest problem we had was that our application ran about 6 times 
> slower on the GT than a 4D/70G when we first ported it over.

We had a similar surprise.  A display manager for our solid modeling
package ran at first about half as fast on the 4D/70GT as it did on
the 4D/60!  After some head scratching we realized the problem: on every
screen update we were also updating the status of the function key lights
on the keyboard.  The keyboard interface on the 70GT must be slower than
on the 60; apparently only 9600 baud.  After removing the keyboard update
the tide happily turned in favor of the 4D/70GT.

- Phil