From lschneider@cam.ac.uk Thu May 18 14:02:49 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cam!lschneider From: lschneider@cam.ac.uk (Liam Schneider) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May18.140249.1718@cam.ac.uk> Date: Thu, 18 May 1995 14:02:49 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 10 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Anyone running this on a Quadra 840AV with the 68040? -- Liam Schneider -- University of Cambridge Computer Laboratory "Measuring a record you own is listening, not piracy." From ajohansson@cmu.edu Fri May 19 16:27:49 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cmu!ajohansson From: ajohansson@cmu.edu (Aiko Johansson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May19.162749.7647@cmu.edu> Date: Fri, 19 May 1995 16:27:49 GMT References: <1995May18.140249.1718@cam.ac.uk> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995May18.140249.1718@cam.ac.uk>, lschneider@cam.ac.uk (Liam 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. -- Aiko Johansson *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From rmoreau@demon.co.uk Sat May 20 16:11:49 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!demon!rmoreau From: rmoreau@demon.co.uk (Raj Moreau) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May20.161149.7382@demon.co.uk> Date: Sat, 20 May 1995 16:11:49 GMT References: <1995May18.140249.1718@cam.ac.uk> <1995May19.162749.7647@cmu.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995May19.162749.7647@cmu.edu>, ajohansson@cmu.edu (Aiko Johansson) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. If you are posting from AOL, please read RFC 1036 before posting again. -- Raj Moreau Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------ From idubois@demon.co.uk Sun May 21 14:27:49 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!demon!idubois From: idubois@demon.co.uk (Ines Dubois) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May21.142749.2085@demon.co.uk> Date: Sun, 21 May 1995 14:27:49 GMT References: <1995May18.140249.1718@cam.ac.uk> <1995May19.162749.7647@cmu.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995May19.162749.7647@cmu.edu>, ajohansson@cmu.edu (Aiko Johansson) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Ines Dubois Practical Peripherals 14.4 @ 9600 Telebit bps "They will send a copy in my place."