From mlee@kth.se Thu Aug 10 15:57:00 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!mlee From: mlee@kth.se (Marisol Lee) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug10.155700.2706@kth.se> Date: Thu, 10 Aug 1995 15:57:00 GMT Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Anyone running this on a Quadra 840AV with the 68040? -- Marisol Lee "When every node is whole, the channel opens." Macintosh IIfx / SunOS 4.1.4 From mpetrov@berkeley.edu Fri Aug 11 16:08:00 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!mpetrov From: mpetrov@berkeley.edu (Marisol Petrov) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug11.160800.3441@berkeley.edu> Date: Fri, 11 Aug 1995 16:08:00 GMT References: <1995Aug10.155700.2706@kth.se> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Aug10.155700.2706@kth.se>, mlee@kth.se (Marisol Lee) 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. If you are posting from AOL, please read RFC 1036 before posting again. -- Marisol Petrov Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From meriksson@mindspring.com Sun Aug 13 04:50:00 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!mindspring!meriksson From: meriksson@mindspring.com (Mike Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug13.045000.2182@mindspring.com> Date: Sun, 13 Aug 1995 04:50:00 GMT References: <1995Aug10.155700.2706@kth.se> <1995Aug11.160800.3441@berkeley.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Aug11.160800.3441@berkeley.edu>, mpetrov@berkeley.edu (Marisol Petrov) 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. -- Mike Eriksson *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0