Path: utzoo!attcan!uunet!mcvax!hp4nl!botter!star.cs.vu.nl!ast@cs.vu.nl
From: ast@cs.vu.nl (Andy Tanenbaum)
Newsgroups: comp.os.minix
Subject: Kermit performance
Message-ID: <1835@ast.cs.vu.nl>
Date: 20 Dec 88 14:24:01 GMT
Sender: ast@cs.vu.nl
Reply-To: ast@cs.vu.nl (Andy Tanenbaum)
Organization: VU Informatica, Amsterdam
Lines: 11


After a certain about of effort, I now have MINIX-Kermit running on my AT
and talking to Kermit on a Sun over a 1200 baud line.  I seem to be able to
get an effective bandwidth of 1100 baud out of this combination.  This is not
bad at all considering that the Kermit packets are only 90 bytes, of which
5 are packet overhead.  Under these conditions the theoretical user bandwidth
is 1133 baud, so I am getting 97% efficiency.  I think it is fairly safe to
say that at 1200 baud, the MINIX RS232 driver is adequate for an AT.  It would
be interesting to hear statistics about over combinations of hardware/speeds.

Andy Tanenbaum (ast@cs.vu.nl)