From krodriguez@mindspring.com Mon Jul 15 22:29:16 1996
Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!krodriguez
From: krodriguez@mindspring.com (Karen Rodríguez)
Newsgroups: comp.sys.m68k
Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Jul15.222916.2077@mindspring.com>
Date: Mon, 15 Jul 1996 22:29:16 GMT
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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.

Make sure you install the 32-bit Enabler on older IIci machines running System 7.1!

-- 
Karen Rodríguez
Tape trading list upon request. SASE required for international mail.

From mpopov@rwth-aachen.de Wed Jul 17 21:11:16 1996
Path: ashpoly!cascade!bigsur!rwth-aachen!mpopov
From: mpopov@rwth-aachen.de (Mei Popov)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1996Jul17.211116.7285@rwth-aachen.de>
Date: Wed, 17 Jul 1996 21:11:16 GMT
References: <1996Jul15.222916.2077@mindspring.com>
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In article <1996Jul15.222916.2077@mindspring.com>, krodriguez@mindspring.com (Karen Rodríguez) 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.

-- 
Mei Popov | mpopov@rwth-aachen.de
PGP Key fingerprint: 5351 0576 F478 C34B
"Keep the channels open."