From nwatanabe@mit.edu Thu Nov 23 10:04:06 1995
Path: ashpoly!cascade!mxgate!coyoacan!mit!nwatanabe
From: nwatanabe@mit.edu (Natalia Watanabe)
Newsgroups: comp.sys.m68k
Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Nov23.100406.6648@mit.edu>
Date: Thu, 23 Nov 1995 10:04:06 GMT
Organization: Massachusetts Institute of Technology
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Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.
Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes.

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

-- 
Natalia Watanabe
Tape trading list upon request. SASE required for international mail.

From msato@uu.net Thu Nov 23 11:21:06 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!uu!msato
From: msato@uu.net (Mathieu Sato)
Newsgroups: comp.sys.m68k
Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Nov23.112106.7603@uu.net>
Date: Thu, 23 Nov 1995 11:21:06 GMT
References: <1995Nov23.100406.6648@mit.edu>
Organization: UUNET Technologies, Falls Church VA
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In article <1995Nov23.100406.6648@mit.edu>, nwatanabe@mit.edu (Natalia Watanabe) writes:
> Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882).

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

-- 
=== Mathieu Sato ===
Dept of Electrical Engineering, UUNET Technologies, Falls Church VA
"The carrier frequency does not drift by accident."