From pgarcia@cern.ch Thu Aug 24 07:28:08 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!pgarcia
From: pgarcia@cern.ch (Pavel García)
Newsgroups: comp.sys.m68k
Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug24.072808.6630@cern.ch>
Date: Thu, 24 Aug 1995 07:28:08 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.
Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.

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

-- 
Pavel García
Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva.
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From scampbell@berkeley.edu Sat Aug 26 03:43:08 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!scampbell
From: scampbell@berkeley.edu (Steve Campbell)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug26.034308.7248@berkeley.edu>
Date: Sat, 26 Aug 1995 03:43:08 GMT
References: <1995Aug24.072808.6630@cern.ch>
Organization: UC Berkeley Department of EECS
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In article <1995Aug24.072808.6630@cern.ch>, pgarcia@cern.ch (Pavel García) 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.

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

-- 
Steve Campbell -- UC Berkeley Department of EECS
"Measuring a record you own is listening, not piracy."

From mandersson@hanse.de Sun Aug 27 10:00:08 1995
Path: ashpoly!cascade!mxgate!coyoacan!hanse!mandersson
From: mandersson@hanse.de (Morag Andersson)
Newsgroups: comp.sys.m68k
Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Aug27.100008.1241@hanse.de>
Date: Sun, 27 Aug 1995 10:00:08 GMT
References: <1995Aug24.072808.6630@cern.ch> <1995Aug26.034308.7248@berkeley.edu>
Organization: Hanse-Netzwerk Hamburg
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In article <1995Aug26.034308.7248@berkeley.edu>, scampbell@berkeley.edu (Steve Campbell) writes:
> Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead.

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

-- 
Morag Andersson -- Hanse-Netzwerk Hamburg
"When every node is whole, the channel opens."