From jjohansson@cern.ch Tue Feb 28 19:51:44 1995
Path: ashpoly!cascade!brgate!saturno!cern!jjohansson
From: jjohansson@cern.ch (Joachim Johansson)
Newsgroups: comp.sys.m68k
Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Feb28.195144.1990@cern.ch>
Date: Tue, 28 Feb 1995 19:51:44 GMT
Organization: European Laboratory for Particle Physics, Geneva
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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.
By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector.

-- 
Joachim Johansson -- European Laboratory for Particle Physics, Geneva
"Row 14. No joke."

From yrodriguez@inria.fr Thu Mar 02 04:53:44 1995
Path: ashpoly!bigsur!pacrim!krgate!eunha!inria!yrodriguez
From: yrodriguez@inria.fr (Yuki Rodríguez)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Mar02.045344.5078@inria.fr>
Date: Thu, 02 Mar 1995 04:53:44 GMT
References: <1995Feb28.195144.1990@cern.ch>
Organization: INRIA Rocquencourt
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In article <1995Feb28.195144.1990@cern.ch>, jjohansson@cern.ch (Joachim Johansson) 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.

Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns.

-- 
Yuki Rodríguez -- INRIA Rocquencourt
"Do not worship the copy."

From vsokolov@titech.ac.jp Thu Mar 02 08:00:44 1995
Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!vsokolov
From: vsokolov@titech.ac.jp (Valeria Sokolov)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Mar02.080044.7902@titech.ac.jp>
Date: Thu, 02 Mar 1995 08:00:44 GMT
References: <1995Feb28.195144.1990@cern.ch>
Organization: Tokyo Institute of Technology Computer Centre
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In article <1995Feb28.195144.1990@cern.ch>, jjohansson@cern.ch (Joachim Johansson) 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.

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

-- 
Valeria Sokolov
Tape trading list upon request. SASE required for international mail.