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Date:      Thu, 29 Nov 2001 22:31:56 -0500
From:      "Jonathan M. Slivko" <jslivko@core.com>
To:        "'Ted Faber'" <faber@ISI.EDU>, "'Pierre Beyssac'" <pb@fasterix.freenix.org>
Cc:        "'Leo Bicknell'" <bicknell@ufp.org>, "'Josh Paetzel'" <friar_josh@webwarrior.net>, <jc@irbs.com>, <freebsd-hackers@FreeBSD.ORG>
Subject:   RE: FreeBSD performing worse than Linux?
Message-ID:  <001e01c1794f$942f4e30$db6dd6d8@sioux>
In-Reply-To: <20011129192650.D64050@pun.isi.edu>

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If you give me your IP address, I can ping *from* Columbia.edu to your
machine and see what I get, that should pretty much solve any issues
that may arise.
-- Jonathan

-----------------------------------------------------
Jonathan Slivko - Voyager Internet - www.voyageri.net
   Web Hosting - Web Design - Dedicated Services
   jslivko@voyageri.net - Phone: (877) 211-7842

-----Original Message-----
From: owner-freebsd-hackers@FreeBSD.ORG
[mailto:owner-freebsd-hackers@FreeBSD.ORG] On Behalf Of Ted Faber
Sent: Thursday, November 29, 2001 10:27 PM
To: Pierre Beyssac
Cc: Leo Bicknell; Josh Paetzel; jc@irbs.com; freebsd-hackers@FreeBSD.ORG
Subject: Re: FreeBSD performing worse than Linux?

On Fri, Nov 30, 2001 at 03:23:45AM +0100, Pierre Beyssac wrote:
> On Thu, Nov 29, 2001 at 08:42:25PM -0500, Leo Bicknell wrote:
> > *grumble*  I'll try to avoid my tirade.  16K _will cause problems
for
> > virtually all users_.  You can do the math and see it won't keep a
T1
> > full across country.  
> 
> I can't reproduce this result, 16K fills a T1 for 11 ms, which is
> 22000 km (at 2/3 of light speed), enough to get halfway round the
> earth...

Not *this* Earth, what with real equipment and all.

I get 22ms to my home machine less than 6 miles from my work machine via
DSL.  Both machines have very good connectivity, but there are delay
artifacts in the world.  And pinging ctr.columbia.edu from my machine in
Southern California gets me 70 ms.  Neither of those should show the DSL
artifact.  Columbia's not 9065 miles away, even by wire length.

And, not to be too pedantic, you've calculated the 2/3c distance for
110ms, not 11 ms.  :-)



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