Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!vsi1!wyse!mips!mash
From: mash@mips.COM (John Mashey)
Newsgroups: comp.arch
Subject: Re: missing Dhrystone 2.1 (1 of 3 &
Message-ID: <2628@winchester.mips.COM>
Date: 19 Jul 88 23:55:28 GMT
References: <4232@cbmvax.UUCP> <76700035@p.cs.uiuc.edu> <1988Jul18.231331.19575@utzoo.uucp> <22406@amdcad.AMD.COM>
Reply-To: mash@winchester.UUCP (John Mashey)
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 20

In article <22406@amdcad.AMD.COM> tim@delirun.amd.com (Tim Olson) writes:
>In article <1988Jul18.231331.19575@utzoo.uucp> henry@utzoo.uucp (Henry Spencer) writes:
>| In article <76700035@p.cs.uiuc.edu> gillies@p.cs.uiuc.edu writes:
>| >I certainly find it hard to believe that the top of the line Amdahl
>| >machine achieves 90,000+ Dhrystones......

>And the Amdahl machine referenced is a dual-processor model -- I assume
>that this was 45K Dhrystones per processor...

I believe the original statement was correct, i.e., I don't think the
Amdahl guys were aggregating 2 CPUs' Dhrystones.

Note that a 20-vups CPU does over 40K Dhrystones,
and one would expect each (50? 45?)-vup 5990 CPU to do 90K-100K Dhrystones.
This is reminiscent of the "Brash Micros vs Big Iron" discussion of
several months' back, i.e., Big Iron is still ahead....
-- 
-john mashey	DISCLAIMER: <generic disclaimer, I speak for me only, etc>
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