Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!mit-eddie!uw-beaver!ubc-cs!van-bc!sl
From: sl@van-bc.UUCP (pri=-10 Stuart Lynne)
Newsgroups: comp.dcom.modems
Subject: Re: more real data for Trailblazers and Argentina
Message-ID: <1787@van-bc.UUCP>
Date: 6 Jun 88 15:36:51 GMT
References: <14605@uunet.UU.NET> <10127@mcdchg.UUCP> <10266@ncc.Nexus.CA>
Reply-To: sl@wimsey.bc.ca (10 Stuart Lynne)
Organization: Public Access Network, Vancouver, BC.
Lines: 38

In article <10266@ncc.Nexus.CA> lyndon@ncc.UUCP (Lyndon Nerenberg) writes:
>In article <10127@mcdchg.UUCP> heiby@mcdchg.UUCP (Ron Heiby) writes:

>> [ ... ] But wait!  Look
>>me that there's an awful lot of think time going on between transfers.

>Indeed, this is the case between us and uunet. Over the course of a
>month, our throughput stats show incoming data from uunet averages
>out at about 450CPS, if you include the delays between files. Traffic from
>us to uunet is a more respectable 750CPS (our TB's talk to a Sun 3/280
>at 9600 baud).

>I too have spent countless hours watching the lights and the log file.
>It's not hard to tell when uunet is busy :-)

I'll say, I see a fairly large variation in the time to send the X. files
for mail. Anything from 4 to 11 seconds for less than 100 chars. 

>I have a nasty suspicion that some faster drives on uunet would make
>a difference.

Something else which could (should) be done is to get BSMTP implemented at
UUNET. 

Now that the Trailblazers have reduced the file transfer size down to a few
seconds for your average mail message the next place to optimize is the
inter-message time. BSMTP would eliminate two inter-file gaps and one small
file. Ideally you could stuff enough messages into a file to make it about
50k or so and send it over with one X. file.

This would reduce costs *MORE* than spending money on faster drives. (Of
course money would have to be spent to pay someone at UUNET to implement
this, I'm sure they don't work there just for the fun of it, but I think
this would provide more bang for the buck!)


-- 
Stuart.Lynne@wimsey.bc.ca {ubc-cs,uunet}!van-bc!sl     Vancouver,BC,604-937-7532