Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!peregrine!elroy!ames!mailrus!uwmcsd1!ig!agate!ucbvax!BRL.MIL!phil From: phil@BRL.MIL (Phil Dykstra) Newsgroups: comp.sys.sgi Subject: Re: Lemons Message-ID: <8808122011.aa28652@SPARK.BRL.MIL> Date: 13 Aug 88 00:11:21 GMT Article-I.D.: SPARK.8808122011.aa28652 Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 12 > 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