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From: milo@ndmath.UUCP (Greg Corson)
Newsgroups: comp.sys.mac.programmer
Subject: Are Mac SERIAL DRIVERS really this SLOW?
Keywords: Mac, Serial, RAM serial
Message-ID: <1539@ndmath.UUCP>
Date: 19 Aug 89 15:46:01 GMT
Organization: Math. Dept., Univ. of Notre Dame
Lines: 20

I've been putting together a multiplayer computer game that communicates via
phone lines.  One thing I've noticed is that there is a substantial slowdown
of the game when it is sending data out the serial port.  I don't THINK this
is anything I'm doing...could it be the interrupt overhead the serial port
handler?

On a Mac+ the slowdown appears to be between 1/3 and 1/2, but it's hard to
measure exactly.

I currently use the RAM serial driver...would use of the ROM driver be any
faster?

Any suggestions would be appreciated!

Greg Corson
19141 Summers Drive
South Bend, IN 46637
(219) 277-5306 
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