From rschneider@kiae.su Sun Jul 23 04:33:52 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!kiae!rschneider From: rschneider@kiae.su (Rodrigo Schneider) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul23.043352.7270@kiae.su> Date: Sun, 23 Jul 1995 04:33:52 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- === Rodrigo Schneider === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "When every node is whole, the channel opens." From tstewart@pacbell.net Sun Jul 23 10:35:52 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!tstewart From: tstewart@pacbell.net (Tomas Stewart) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul23.103552.4152@pacbell.net> Date: Sun, 23 Jul 1995 10:35:52 GMT References: <1995Jul23.043352.7270@kiae.su> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jul23.043352.7270@kiae.su>, rschneider@kiae.su (Rodrigo Schneider) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Tomas Stewart Opinions expressed are solely my own and not those of Pacific Bell Internet Services. ------------------------------------------------------------ From bsilva@cmu.edu Mon Jul 24 22:18:52 1995 Path: ashpoly!cascade!bigsur!cmu!bsilva From: bsilva@cmu.edu (Bastien Silva) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul24.221852.7907@cmu.edu> Date: Mon, 24 Jul 1995 22:18:52 GMT References: <1995Jul23.043352.7270@kiae.su> <1995Jul23.103552.4152@pacbell.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jul23.103552.4152@pacbell.net>, tstewart@pacbell.net (Tomas Stewart) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Bastien Silva *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From oduarte@earthlink.net Tue Jul 25 15:56:52 1995 Path: ashpoly!cascade!transat!ukc!fennimore!earthlink!oduarte From: oduarte@earthlink.net (Olga Duarte) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul25.155652.4251@earthlink.net> Date: Tue, 25 Jul 1995 15:56:52 GMT References: <1995Jul23.043352.7270@kiae.su> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Jul23.043352.7270@kiae.su>, rschneider@kiae.su (Rodrigo Schneider) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Olga Duarte Tape trading list upon request. SASE required for international mail. From hgarcia@demon.co.uk Thu Jul 27 15:04:52 1995 Path: ashpoly!cascade!transat!ukc!fennimore!demon!hgarcia From: hgarcia@demon.co.uk (Heather García) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul27.150452.7385@demon.co.uk> Date: Thu, 27 Jul 1995 15:04:52 GMT References: <1995Jul23.043352.7270@kiae.su> <1995Jul23.103552.4152@pacbell.net> <1995Jul24.221852.7907@cmu.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jul24.221852.7907@cmu.edu>, bsilva@cmu.edu (Bastien Silva) 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. -- Heather García US Robotics Courier V.34 @ 28,800 bps "Do not worship the copy."