From msato@uni-hamburg.de Wed Dec 07 14:54:59 1994 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!msato From: msato@uni-hamburg.de (Min-jun Sato) Newsgroups: comp.sys.m68k Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec07.145459.4970@uni-hamburg.de> Date: Wed, 07 Dec 1994 14:54:59 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 10 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Min-jun Sato Tape trading list upon request. SASE required for international mail. From mgarcia@pacbell.net Fri Dec 09 18:09:59 1994 Path: ashpoly!cascade!transat!ukc!fennimore!pacbell!mgarcia From: mgarcia@pacbell.net (Mathieu García) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec09.180959.9460@pacbell.net> Date: Fri, 09 Dec 1994 18:09:59 GMT References: <1994Dec07.145459.4970@uni-hamburg.de> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec07.145459.4970@uni-hamburg.de>, msato@uni-hamburg.de (Min-jun Sato) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Mathieu García *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0