Path: utzoo!mnetor!uunet!husc6!hao!oddjob!matt
From: matt@oddjob.UChicago.EDU (Yes, *THAT* Matt Crawford)
Newsgroups: comp.unix.wizards
Subject: Re: rdump, Ethernet slowness
Message-ID: <14125@oddjob.UChicago.EDU>
Date: 9 Dec 87 16:02:09 GMT
References: <788@hsi.UUCP> <1268@laidbak.UUCP> <411@anuck.UUCP>
Organization: Just Things `n' Stuff, Et Cetera, Ltd.
Lines: 14

j.r.lupien (whom I can't reach by mail) writes:
) when I transfer a 1 MB file, ... I find that it takes a minute or
) more. ... 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. 

Someone has.  I just transferred a 1MB (2^20 byte) file from a
sun-3/280 with an Intel 82586 ethernet chip to a sun-3/60 with an AMD
Am7990 and it took 7.11 seconds.  (This is with ftp and the standard-
issue TCP on each end.)  The network has many diskless clients on it.
If the bytes were not going to and from disk I'm sure the transfer
would be faster still.
					Matt Crawford