Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-ses!hpcc01!hpwrce!ted
From: ted@hpwrce.HP.COM ( Ted Johnson)
Newsgroups: comp.sys.mac
Subject: modem thruput: what do you get?
Message-ID: <7380043@hpwrce.HP.COM>
Date: 20 Feb 90 18:01:28 GMT
Organization: Ye Olde Salt Mines
Lines: 20

How many chars/sec should a "good" implementation of kermit transmit?

Using a Hayes 1200, I got  70 chars/sec
Using a Hayes 2400, I got 118 chars/sec

A quick back-of-the-envelope calculation shows that the 
theoritical (sp?) max. thruput is 150 chars/sec and 300 chars/sec,
for the 1200 and 2400 baud modems (assuming that these both
use 2 signal levels, so that bps = baud..., which may not be true).

I tested this w/ 6.0.3, and Red Ryder 9.4, to a HP-UX machine, with
a 90k file, on a moderately noisy line.


Question:  does Red Ryder suck, or are these typical thruput numbers?


-Ted

"Where does he get all those wonderful toys?" - The Joker