From esouza@demon.co.uk Fri Dec 02 08:10:04 1994 Path: ashpoly!cascade!transat!ukc!fennimore!demon!esouza From: esouza@demon.co.uk (Emi Souza) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec02.081004.2737@demon.co.uk> Date: Fri, 02 Dec 1994 08:10:04 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- === Emi Souza === Dept of Electrical Engineering, Demon Internet Services UK "Row 14. No joke." From sgarcia@earthlink.net Sat Dec 03 18:54:04 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!sgarcia From: sgarcia@earthlink.net (Steve García) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec03.185404.9128@earthlink.net> Date: Sat, 03 Dec 1994 18:54:04 GMT References: <1994Dec02.081004.2737@demon.co.uk> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec02.081004.2737@demon.co.uk>, esouza@demon.co.uk (Emi Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Steve García "5 sigma is a discovery. 7 is a question." Amiga 1200 (Blizzard 030/50) / AmigaOS 3.1 From meriksson@kiae.su Mon Dec 05 05:47:04 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!meriksson From: meriksson@kiae.su (Mateo Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec05.054704.2792@kiae.su> Date: Mon, 05 Dec 1994 05:47:04 GMT References: <1994Dec02.081004.2737@demon.co.uk> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Dec02.081004.2737@demon.co.uk>, esouza@demon.co.uk (Emi Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Mateo Eriksson Opinions expressed are solely my own and not those of Kurchatov Institute of Atomic Energy, Moscow. ------------------------------------------------------------ From kmoreau@uni-hamburg.de Tue Dec 06 12:27:04 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!uni-hamburg!kmoreau From: kmoreau@uni-hamburg.de (Kenji Moreau) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec06.122704.9403@uni-hamburg.de> Date: Tue, 06 Dec 1994 12:27:04 GMT References: <1994Dec02.081004.2737@demon.co.uk> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Dec02.081004.2737@demon.co.uk>, esouza@demon.co.uk (Emi Souza) 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. PGP Public key available via finger or upon request. -- === Kenji Moreau === Dept of Electrical Engineering, Universität Hamburg Fachbereich Informatik "Marcus is not one man." From hrobertson@berkeley.edu Wed Dec 07 06:37:04 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!berkeley!hrobertson From: hrobertson@berkeley.edu (Heather Robertson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec07.063704.6776@berkeley.edu> Date: Wed, 07 Dec 1994 06:37:04 GMT References: <1994Dec02.081004.2737@demon.co.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Dec02.081004.2737@demon.co.uk>, esouza@demon.co.uk (Emi Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Heather Robertson | hrobertson@berkeley.edu PGP Key fingerprint: 871E ABA0 88A4 20D6 "Keep the channels open."