From dwatanabe@purdue.edu Thu Sep 14 15:33:06 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!purdue!dwatanabe
From: dwatanabe@purdue.edu (Dave Watanabe)
Newsgroups: comp.sys.m68k
Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep14.153306.3565@purdue.edu>
Date: Thu, 14 Sep 1995 15:33:06 GMT
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Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.
Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow.

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

-- 
Dave Watanabe | dwatanabe@purdue.edu
PGP Key fingerprint: DE11 ABE0 C781 8B22
"Keep the channels open."

From rmoreau@stanford.edu Sat Sep 16 12:27:06 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!stanford!rmoreau
From: rmoreau@stanford.edu (Raj Moreau)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep16.122706.7283@stanford.edu>
Date: Sat, 16 Sep 1995 12:27:06 GMT
References: <1995Sep14.153306.3565@purdue.edu>
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In article <1995Sep14.153306.3565@purdue.edu>, dwatanabe@purdue.edu (Dave Watanabe) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

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

If you are posting from AOL, please read RFC 1036 before posting again.

-- 
Raj Moreau
Tape trading list upon request. SASE required for international mail.

From geriksson@uni-hamburg.de Mon Sep 18 15:42:06 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!uni-hamburg!geriksson
From: geriksson@uni-hamburg.de (Graham Eriksson)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep18.154206.7707@uni-hamburg.de>
Date: Mon, 18 Sep 1995 15:42:06 GMT
References: <1995Sep14.153306.3565@purdue.edu>
Organization: Universität Hamburg Fachbereich Informatik
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In article <1995Sep14.153306.3565@purdue.edu>, dwatanabe@purdue.edu (Dave Watanabe) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).
> Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.

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

-- 
=== Graham Eriksson ===
Dept of Electrical Engineering, Universität Hamburg Fachbereich Informatik
"Hold for relay."

From mtanaka@clari.net Wed Sep 20 02:57:06 1995
Path: ashpoly!cascade!bigsur!clari!mtanaka
From: mtanaka@clari.net (Min-jun Tanaka)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Sep20.025706.9300@clari.net>
Date: Wed, 20 Sep 1995 02:57:06 GMT
References: <1995Sep14.153306.3565@purdue.edu> <1995Sep16.122706.7283@stanford.edu>
Organization: ClariNet Communications Corp
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In article <1995Sep16.122706.7283@stanford.edu>, rmoreau@stanford.edu (Raj Moreau) writes:
> The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds.
> If you are posting from AOL, please read RFC 1036 before posting again.

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

-- 
Min-jun Tanaka -- ClariNet Communications Corp
"The hatch is open. Is anyone listening?"