From trobertson@kiae.su Wed Jul 26 11:03:54 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!trobertson
From: trobertson@kiae.su (Tyler Robertson)
Newsgroups: comp.sys.m68k
Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jul26.110354.9903@kiae.su>
Date: Wed, 26 Jul 1995 11:03:54 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.
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.

-- 
Tyler Robertson <trobertson@kiae.su>
SupraFAXModem 28.8 @ 28,800 bps
"Row 14. No joke."

From fmoreau@cam.ac.uk Thu Jul 27 09:58:54 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!fmoreau
From: fmoreau@cam.ac.uk (Fiona Moreau)
Newsgroups: comp.sys.m68k
Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1995Jul27.095854.2610@cam.ac.uk>
Date: Thu, 27 Jul 1995 09:58:54 GMT
References: <1995Jul26.110354.9903@kiae.su>
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In article <1995Jul26.110354.9903@kiae.su>, trobertson@kiae.su (Tyler Robertson) 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.

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