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From: rick@seismo.CSS.GOV (Rick Adams)
Newsgroups: comp.dcom.modems,news.admin
Subject: Some real performance data on the new Telebit modems
Message-ID: <44163@beno.seismo.CSS.GOV>
Date: Tue, 13-Oct-87 17:20:12 EDT
Article-I.D.: beno.44163
Posted: Tue Oct 13 17:20:12 1987
Date-Received: Wed, 14-Oct-87 07:25:39 EDT
Organization: Center for Seismic Studies, Arlington, VA
Lines: 25
Keywords: fast
Xref: mnetor comp.dcom.modems:1015 news.admin:1163

I have been doing some testing with the newest Telebit modems with the
newest firmware (supports uucp protocols and LZ compression between modems).
Note this is the new "gate-array" based hardware platform which has
only been shiping for a few weeks.

The results have been very impressive. Following is an excerpt from the
log file of a few uucp sessions between uunet (in Washington DC) and
telebit (in Cupertino, CA) over normal ATT long distance lines.

Received data seems to be limited by the Systech board in the Sequent.
We could never get it to take data faster than about 8500 bps. However,
sending is another story...

--rick

p.s. note that the number is Characters per second, not Bits per second

ordinary ascii text file with lots of repetition - LZ compression in modem
	 telebit (10/13-16:32-8751) sent data 98718 bytes 60.63 secs 1628 cps
/bin/csh - LZ compression in modem
	 telebit (10/13-16:36-8837) sent data 73728 bytes 50.82 secs 1450 cps
LZ compressed news batch - LZ compression in modem
	 telebit (10/13-16:39-8915) sent data 50955 bytes 49.70 secs 1025 cps
LZ compressed news batch - no compression in modem
	 telebit (10/13-16:45-8984) sent data 50955 bytes 38.44 secs 1325 cps