Path: utzoo!mnetor!uunet!husc6!cmcl2!brl-adm!umd5!mimsy!oddjob!gargoyle!ihnp4!homxb!twitch!anuck!jrl
From: jrl@anuck.UUCP (j.r.lupien)
Newsgroups: comp.unix.wizards
Subject: Re: rdump, Ethernet slowness
Message-ID: <411@anuck.UUCP>
Date: 8 Dec 87 22:28:38 GMT
References: <788@hsi.UUCP> <1268@laidbak.UUCP>
Organization: AT&T Bell Labs, Andover Ma.
Lines: 16
Summary: are ethernet controllers as good as they could be?

> The network transfer rate is good, but the latency is poor.

How good is this? I know that the network bandwidth is 10Mb,
but when I transfer a 1 MB file, instead of the 10 seconds that
the true bandwidth suggests I might get on an unloaded net, 
I find that it takes a minute or more. Is this software delay,
or is the ethernet controller chip just not turning around
fast enough? 

This is only idle curiosity, but if it comes out that the controller
is too slow, maybe someone will make one that can really feed the
net, which would change my mind about being somewhat put off of
ethernet because it fails to deliver on the single-user throughput.

John R. Lupien
ihnp4!mvuxa!anuxh!jrl