*BSD News Article 25940


Return to BSD News archive

Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!sgiblab!cs.uoregon.edu!news.uoregon.edu!usenet.coe.montana.edu!bsd.coe.montana.edu!nate
From: nate@bsd.coe.montana.edu (Nate Williams)
Newsgroups: comp.os.386bsd.questions
Subject: Re: NetBSD - routing and slip
Date: 12 Jan 1994 20:44:00 GMT
Organization: Montana State University - Bozeman MT
Lines: 41
Message-ID: <2h1neg$gju@pdq.coe.montana.edu>
References: <2gv4lc$l0i@darkstar.UCSC.EDU> <1994Jan12.142552.6187@jupiter.sun.csd.unb.ca> <CJJ0w6.ADo@usenet.ucs.indiana.edu>
NNTP-Posting-Host: bsd.coe.montana.edu

In article <CJJ0w6.ADo@usenet.ucs.indiana.edu>,
Jim Pitts <pitts@mimosa.astro.indiana.edu> wrote:
>In article <1994Jan12.142552.6187@jupiter.sun.csd.unb.ca>,
>Peter Howlett <b6ps@jupiter.sun.csd.unb.ca> wrote:
>>  I use a GVC 14.4k fax modem at home on NetBSD 0.9 with serial 57.6K 
>>to my school on 16450 serial ports and have'nt had a single silo 
>>overflow since. On a good day (if the SUN at school is not loaded) 
>>I can get up to 3000 Chars/Sec on kermit transferring binary (gzip'd) files.
>                 ^^^^^^^^^^^^^^    ^^^^^^

I have an EXTREMELY hard time believing that since I'm downloading
binary files with Kermit with my brand new 14.4 and it's maxing out at
around 1700 Chars/sec with zmodem.  Granted I'm not running 57.6 (38.4)
but the speed difference + modmem compression should not give you a 
2 x increase in speed.


>>My machine by the way is a 386DX/25 w 8M Ram and X running constantly.
>
>I find this -very- hard to believe.  I have basically the same set up except
>that I run FreeBSD, the sio device drivers, have a faster CPU and use zmodem
>rather than kermit (I also use ftp with ppp).  I am luck to get 1.2 K/s transfer
>rate with a 16550A.  Either I am doing something drastically wrong or you are
>doing something drastically correct.

I also have a difficult time believing it as well.

>I realize that the sio drivers are a slow down, and the 'new' kermit is much
>more efficent than it used to be ... but a factor of 2 or more?

I don't understand the 'sio drivers are a slow down' part of that.  The sio
drivers are much more efficient than the NetBSD drivers publically available.


Nate

-- 
nate@bsd.coe.montana.edu     |  Freely available *nix clones benefit everyone,
nate@cs.montana.edu          |  so let's not compete with each other, let's
work #: (406) 994-4836       |  compete with folks who try to tie us down to
home #: (406) 586-0579       |  proprietary O.S.'s (Microsloth) - Me