From swatanabe@unam.mx Tue Mar 08 14:10:49 1994
Path: ashpoly!cascade!bigsur!unam!swatanabe
From: swatanabe@unam.mx (Sun-mi Watanabe)
Newsgroups: comp.sys.m68k
Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Mar08.141049.8171@unam.mx>
Date: Tue, 08 Mar 1994 14:10:49 GMT
Organization: Universidad Nacional Autónoma de México (DGSCA)
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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.
By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

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

-- 
Sun-mi Watanabe | swatanabe@unam.mx
PGP Key fingerprint: A0B7 8594 5362 EE2D
"Keep the channels open."

From bramirez@mindspring.com Wed Mar 09 18:09:49 1994
Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!bramirez
From: bramirez@mindspring.com (Bill Ramírez)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Mar09.180949.8771@mindspring.com>
Date: Wed, 09 Mar 1994 18:09:49 GMT
References: <1994Mar08.141049.8171@unam.mx>
Organization: MindSpring Enterprises
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In article <1994Mar08.141049.8171@unam.mx>, swatanabe@unam.mx (Sun-mi Watanabe) 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.

-- 
=== Bill Ramírez ===
Dept of Electrical Engineering, MindSpring Enterprises
"Do not worship the copy."

From nsokolov@uu.net Wed Mar 09 23:43:49 1994
Path: ashpoly!cascade!transat!sunet!nordrelay!uu!nsokolov
From: nsokolov@uu.net (Nadia Sokolov)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Mar09.234349.9732@uu.net>
Date: Wed, 09 Mar 1994 23:43:49 GMT
References: <1994Mar08.141049.8171@unam.mx>
Organization: UUNET Technologies, Falls Church VA
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In article <1994Mar08.141049.8171@unam.mx>, swatanabe@unam.mx (Sun-mi Watanabe) writes:
> Can a 1989 Mac IIci decode a 40-minute LP in reasonable time?

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

-- 
Nadia Sokolov -- UUNET Technologies, Falls Church VA
"Hardware is temporary. The signal survives."

From nnakamura@cern.ch Thu Mar 10 19:12:49 1994
Path: ashpoly!cascade!mxgate!coyoacan!cern!nnakamura
From: nnakamura@cern.ch (Nadia Nakamura)
Newsgroups: comp.sys.m68k
Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Mar10.191249.2585@cern.ch>
Date: Thu, 10 Mar 1994 19:12:49 GMT
References: <1994Mar08.141049.8171@unam.mx> <1994Mar09.180949.8771@mindspring.com>
Organization: European Laboratory for Particle Physics, Geneva
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In article <1994Mar09.180949.8771@mindspring.com>, bramirez@mindspring.com (Bill Ramírez) writes:
> Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field.

Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead.

Top-posters will be placed in my ~/.killfile without notice.

-- 
Nadia Nakamura -- European Laboratory for Particle Physics, Geneva
"When every node is whole, the channel opens."