[comp.sys.mac.programmer] Are Mac SERIAL DRIVERS really this SLOW?

milo@ndmath.UUCP (Greg Corson) (08/19/89)

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 
{pur-ee,rutgers,uunet}!iuvax!ndmath!milo