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Article #2577Re: AT&T MIPS claim
From: Dave Brownell
Date: Thu, 29 May 1986 14:10
Date: Thu, 29 May 1986 14:10
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1543 bytes
In article <577@scirtp.UUCP> dfh@scirtp.UUCP (David F. Hinnant) writes:
> ... They made this interesting claim that the UNIX PC gives
> you "75% of the power of a VAX 11/780" for "only 7% of the cost".
> Arrgh. ... Is this the MIP rating for the
> 68010 as compared to the VAX? Looks like it. One really couldn't ask
> for a better example of the Meaningless Index of Performance. I've seen
> many a 780 run with more than 20 users. I'd like to see you put that
> many on a UNIX PC that I found can barely support one.
This is Apples and Oranges ... a MIP, however meaningless, is a CPU benchmark,
and a "user" is a rather ill-defined I/O benchmark ... and I do believe
the I/O on the 7300 is not up to the CPU. Maybe when someone comes up
with a realistic I/O benchmark we can really start comparing UNIX hardware.
(Yes, that marketing claim is absurd.)
--
Dave Brownell
EnMasse Computer Corporation
{genrad,harvard}!enmasse!comm!dave
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!panda!enmasse!comm!dave From: dave@comm.UUCP (Dave Brownell) Newsgroups: net.arch,net.micro.att Subject: Re: AT&T MIPS claim Message-ID: <266@comm.UUCP> Date: Thu, 29-May-86 10:10:55 EDT Article-I.D.: comm.266 Posted: Thu May 29 10:10:55 1986 Date-Received: Sat, 31-May-86 04:36:29 EDT References: <577@scirtp.UUCP> Reply-To: dave@comm.UUCP (Dave Brownell) Distribution: net Organization: EnMasse Computer Corp, Acton, MA Lines: 18