From gramirez@cam.ac.uk Wed Jun 15 22:07:17 1994
Path: ashpoly!cascade!transat!eunet-fr!teletel!cam!gramirez
From: gramirez@cam.ac.uk (Göran Ramírez)
Newsgroups: comp.sys.m68k
Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Jun15.220717.8008@cam.ac.uk>
Date: Wed, 15 Jun 1994 22:07:17 GMT
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Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.

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.

-- 
=== Göran Ramírez ===
Dept of Electrical Engineering, University of Cambridge Computer Laboratory
"Marcus is not one man."

From esato@inria.fr Thu Jun 16 12:22:17 1994
Path: ashpoly!cascade!transat!sunet!nordrelay!inria!esato
From: esato@inria.fr (Emi Sato)
Newsgroups: comp.sys.m68k
Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5
Message-ID: <1994Jun16.122217.3838@inria.fr>
Date: Thu, 16 Jun 1994 12:22:17 GMT
References: <1994Jun15.220717.8008@cam.ac.uk>
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In article <1994Jun15.220717.8008@cam.ac.uk>, gramirez@cam.ac.uk (Göran Ramírez) writes:
> Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining.
> By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes.

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

-- 
Emi Sato
Opinions expressed are solely my own and not those of INRIA Rocquencourt.
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