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From: banshee@boing.resort.com (John Vinopal)
Newsgroups: comp.os.386bsd.questions
Subject: Re: FTP slow via SLIP (28.8)?
Date: 26 Oct 1994 04:14:30 GMT
Organization: Santa Cruz Community Internet
Lines: 37
Message-ID: <38kl37$a9v@nic.scruz.net>
References: <386fi9$t1@blackice.winternet.com> <388vcv$19n@agate.berkeley.edu> <38atje$lon@nic.scruz.net> <Cy7DEL.L7r@indirect.com>
NNTP-Posting-Host: resort.com
X-Newsreader: NN version 6.5.0 #0 (NOV)

wes@indirect.com (Barnacle Wes) writes:
>: 1) latency times over your modem
>What do you do if they're slow?  My times average 320ms - 380ms, with
>a Zoom 28.8 V.FC connected to same.   I've setup the modem as my 
>internet service provider has recommended.

This is all the fault of the modem.  I run a pair of hayes 28.8
and get low numbers in the range of:
  35 packets transmitted, 35 packets received, 0% packet loss
  round-trip min/avg/max = 176/186/219 ms
You can try turning off data compression, or you can live with it.

>: 5) your average is FAR too low for what speed you think you should be at.
>Yes.  I typically get ~10,000 bps using ftp, and would expect closer to
>~20,000 over a clean 28.8 link.  I use 57,600 between the computer and
>the modem, bot for dialing and for slattach (to make sure I don't confuse
>the modem as to speed).  The connect message typically reports connection
>at 28800 (sometimes 21600).
~26400 connect, slattach at 57,600
binary transfer of a 227K compressed file to a host ~300ms away
227105 bytes received in 112.15 seconds (1.98 Kbytes/s)
binary transfer of a 141K text file from a host ~300ms away
141197 bytes received in 40.03 seconds (3.44 Kbytes/s)

>: 6) turn on hash in ftp.  do you get periodic pauses?  are you running
>:    a high speed modem on a lame uart chip?
>Yep, long pauses.  I'm certain these are a great part of the problem, but
>I'm not sure where they come from.  This connection exhibits the same
>pause-prone behavior if I dial in using DOS with the same modem.  Is this
>a problem with my service provider then?
Are you on a 16550 uart serial port?  You should be.

-- 
The Wailer at the Gates of Dawn              | banshee@resort.com          |
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