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000135_news@columbia.edu_Sat Nov 12 04:16:42 1994.msg
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From: jrd@cc.usu.edu (Joe Doupnik)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: Help With Transfer Rate
Message-Id: <1994Nov12.101642.32608@cc.usu.edu>
Date: 12 Nov 94 10:16:42 MDT
References: <3a1q67$53m@chopin.udel.edu>
Organization: Utah State University
Lines: 28
Apparently-To: kermit.misc@watsun.cc.columbia.edu
In article <3a1q67$53m@chopin.udel.edu>, darkstar@chopin.udel.edu (Jerry Alexandratos) writes:
>
> Is it just me or am I missing something plainly obvious? Here's what's
> going on:
>
> I have MS-Kermit (v3.13) on a 386 over an ethernet connection. On the
> host side, I'm running C-Kermit (5A(189)) on a Sun 4. With the
> following settings I get a average CPS of about 8500 (or at least
> that's what the status bar on MSK says).
>
> MS-Kermit C-Kermit
> set flow none set flow none
> set windows 3 set windows 3
> set send pack 5000 set send pack 5000
> set rec pack 5000 set rec pack 5000
> set file display none
> set file names literal
--------
Something is not what it should be Jerry. 8.5K cps over Telnet is
far below what I see under similar circumstances. Between MSK and C Kermit
on a DEC Alpha I get around 85K cps, MSK to CK on a 386-33 Unix machine I
get around 28K cps. 486-66 DX/2 machine for the MSK part.
Suggestions are to upgrade the C Kermit side to 5A (190) where
significant speed improvments have occurred, and to have a careful look
at your Ethernet system to see if packets are being dropped. Note that
MSK has a 4KB TCP buffer so Kermit packets smaller than this are a more
natural fit (only a minor effect). I use 2KB packets and 4 window slots.
Joe D.