From sweber@cern.ch Tue Sep 17 00:37:12 1996
Path: ashpoly!cascade!mxgate!coyoacan!cern!sweber
From: sweber@cern.ch (Seo-yeon Weber)
Newsgroups: comp.sys.m68k
Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Sep17.003712.2423@cern.ch>
Date: Tue, 17 Sep 1996 00:37:12 GMT
Organization: European Laboratory for Particle Physics, Geneva
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Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.
A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions.

Anyone running this on a Quadra 840AV with the 68040?

-- 
Seo-yeon Weber
Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva.
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From dstewart@berkeley.edu Wed Sep 18 17:52:12 1996
Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!dstewart
From: dstewart@berkeley.edu (Diego Stewart)
Newsgroups: comp.sys.m68k
Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Sep18.175212.2028@berkeley.edu>
Date: Wed, 18 Sep 1996 17:52:12 GMT
References: <1996Sep17.003712.2423@cern.ch>
Organization: UC Berkeley Department of EECS
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In article <1996Sep17.003712.2423@cern.ch>, sweber@cern.ch (Seo-yeon Weber) writes:
> Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?
> Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.

Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field.

-- 
Diego Stewart -- UC Berkeley Department of EECS
"We don't sign stars. We build them."