Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!vsi1!lmb
From: lmb@vicom.com (Larry Blair)
Newsgroups: comp.dcom.modems
Subject: Re: telebit speed
Keywords: telebit baud uunet
Message-ID: <1990Aug27.220412.13912@vicom.com>
Date: 27 Aug 90 22:04:12 GMT
References: <150@grumbly.UUCP> <7841@gollum.twg.com> <1990Aug27.023921.10506@pcrat.uucp>
Organization: Vicom Systems Inc., Fremont, CA
Lines: 20

In article <1990Aug27.023921.10506@pcrat.uucp> rick@pcrat.UUCP (Rick Richardson) writes:
=>In article <150@grumbly.UUCP> root@grumbly.com writes:
=>>I've recently started using a Telebit T2500.  I'm getting transmission
=>>rates of about 1700 cps from me --> uunet, but only 800-1100 cps 
=>>from uunet --> me.

=I think its 1) because outgoing speeds are lies, due to buffering,
=and 2) because UUNET has oversubscribed and is overloaded at all
=the popular times to call (like all night).

No question that it is because of the buffering.  Most uucps only count the
time required to transmit the packets for the SYSLOG file, not the time until
the `REQUESTED (CY)' message is returned.  Since the modem buffers about 10k,
the time for sending is understated.  Larger batches will reduce, but not
eliminate the differential.  I suspect that you are only sending very small
batches and/or mail which do not exceed the modem's buffer.  If you want
to see how fast it really is watch the log and time it by hand by waiting for
the `REQUESTED (CY)' message.
-- 
Larry Blair   ames!vsi1!lmb   lmb@vicom.com