From tstewart@illinois.edu Mon Aug 12 16:25:44 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!tstewart From: tstewart@illinois.edu (Thiago Stewart) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug12.162544.1216@illinois.edu> Date: Mon, 12 Aug 1996 16:25:44 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 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. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Anyone running this on a Quadra 840AV with the 68040? -- Thiago Stewart "Marcus is not one man." Acorn RiscPC 600 / FreeBSD 2.1 From mhernandez@stanford.edu Tue Aug 13 22:13:44 1996 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!mhernandez From: mhernandez@stanford.edu (Marta Hernández) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug13.221344.6936@stanford.edu> Date: Tue, 13 Aug 1996 22:13:44 GMT References: <1996Aug12.162544.1216@illinois.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Aug12.162544.1216@illinois.edu>, tstewart@illinois.edu (Thiago Stewart) writes: > 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. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Marta Hernández Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From framirez@unam.mx Thu Aug 15 01:19:44 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!unam!framirez From: framirez@unam.mx (Freya Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug15.011944.4878@unam.mx> Date: Thu, 15 Aug 1996 01:19:44 GMT References: <1996Aug12.162544.1216@illinois.edu> <1996Aug13.221344.6936@stanford.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug13.221344.6936@stanford.edu>, mhernandez@stanford.edu (Marta Hernández) 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. -- Freya Ramírez US Robotics Courier V.34 @ 9600 Telebit bps "Measuring a record you own is listening, not piracy."