From hhughes@inria.fr Mon Sep 23 01:39:42 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!inria!hhughes From: hhughes@inria.fr (Heather Hughes) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep23.013942.8904@inria.fr> Date: Mon, 23 Sep 1996 01:39:42 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. 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. -- Heather Hughes US Robotics Courier V.34 @ 28,800 bps "In theory there is no difference between theory and practice." From framirez@u-tokyo.ac.jp Mon Sep 23 21:59:42 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!framirez From: framirez@u-tokyo.ac.jp (Fiona Ramírez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep23.215942.7427@u-tokyo.ac.jp> Date: Mon, 23 Sep 1996 21:59:42 GMT References: <1996Sep23.013942.8904@inria.fr> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Sep23.013942.8904@inria.fr>, hhughes@inria.fr (Heather Hughes) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Fiona Ramírez *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From rsanchez@rwth-aachen.de Wed Sep 25 19:43:42 1996 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!rsanchez From: rsanchez@rwth-aachen.de (Renata Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep25.194342.8413@rwth-aachen.de> Date: Wed, 25 Sep 1996 19:43:42 GMT References: <1996Sep23.013942.8904@inria.fr> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1996Sep23.013942.8904@inria.fr>, hhughes@inria.fr (Heather Hughes) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Renata Sánchez -- RWTH Aachen Informatik "Measuring a record you own is listening, not piracy." From mkarlsson@kiae.su Fri Sep 27 13:38:42 1996 Path: ashpoly!cascade!transat!ukc!fennimore!kiae!mkarlsson From: mkarlsson@kiae.su (Marisol Karlsson) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep27.133842.6674@kiae.su> Date: Fri, 27 Sep 1996 13:38:42 GMT References: <1996Sep23.013942.8904@inria.fr> <1996Sep25.194342.8413@rwth-aachen.de> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Sep25.194342.8413@rwth-aachen.de>, rsanchez@rwth-aachen.de (Renata Sánchez) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- === Marisol Karlsson === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "Tape doesn't lie at 02:14. Ears do."