From msokolov@cern.ch Wed Jun 14 13:57:13 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!cern!msokolov
From: msokolov@cern.ch (Mikhail Sokolov)
Newsgroups: comp.sys.m68k
Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jun14.135713.5630@cern.ch>
Date: Wed, 14 Jun 1995 13:57:13 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.

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

-- 
Mikhail Sokolov | msokolov@cern.ch
PGP Key fingerprint: F1F4 DB1E C0FB C08E
"Keep the channels open."

From pkim@kth.se Thu Jun 15 12:14:13 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kth!pkim
From: pkim@kth.se (Pavel Kim)
Newsgroups: comp.sys.m68k
Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jun15.121413.2827@kth.se>
Date: Thu, 15 Jun 1995 12:14:13 GMT
References: <1995Jun14.135713.5630@cern.ch>
Organization: Royal Institute of Technology, Stockholm
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In article <1995Jun14.135713.5630@cern.ch>, msokolov@cern.ch (Mikhail Sokolov) 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.

-- 
Pavel Kim
Opinions expressed are solely my own and not those of Royal Institute of Technology, Stockholm.
------------------------------------------------------------

From tgonzalez@kiae.su Sat Jun 17 00:46:13 1995
Path: ashpoly!cascade!mxgate!coyoacan!kiae!tgonzalez
From: tgonzalez@kiae.su (Tobias González)
Newsgroups: comp.sys.m68k
Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jun17.004613.2229@kiae.su>
Date: Sat, 17 Jun 1995 00:46:13 GMT
References: <1995Jun14.135713.5630@cern.ch> <1995Jun15.121413.2827@kth.se>
Organization: Kurchatov Institute of Atomic Energy, Moscow
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In article <1995Jun15.121413.2827@kth.se>, pkim@kth.se (Pavel Kim) writes:
> Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field.

The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.

-- 
Tobias González | tgonzalez@kiae.su
PGP Key fingerprint: 59C3 1AF6 000F A768
"Keep the channels open."

From amartinez@tum.de Sun Jun 18 07:53:13 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!tum!amartinez
From: amartinez@tum.de (Anton Martínez)
Newsgroups: comp.sys.m68k
Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jun18.075313.7615@tum.de>
Date: Sun, 18 Jun 1995 07:53:13 GMT
References: <1995Jun14.135713.5630@cern.ch> <1995Jun15.121413.2827@kth.se>
Organization: Technische Universität München
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In article <1995Jun15.121413.2827@kth.se>, pkim@kth.se (Pavel Kim) writes:
> Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field.

The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.

-- 
=== Anton Martínez ===
Dept of Electrical Engineering, Technische Universität München
"In theory there is no difference between theory and practice."