From jvasiliev@pipeline.com Thu Jul 04 04:22:31 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pipeline!jvasiliev From: jvasiliev@pipeline.com (Joachim Vasiliev) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul04.042231.2719@pipeline.com> Date: Thu, 04 Jul 1996 04:22:31 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 11 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. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Joachim Vasiliev *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From lmartinez@mindspring.com Fri Jul 05 02:24:31 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!lmartinez From: lmartinez@mindspring.com (Liam Martínez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul05.022431.6376@mindspring.com> Date: Fri, 05 Jul 1996 02:24:31 GMT References: <1996Jul04.042231.2719@pipeline.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Jul04.042231.2719@pipeline.com>, jvasiliev@pipeline.com (Joachim Vasiliev) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Liam Martínez Opinions expressed are solely my own and not those of MindSpring Enterprises. ------------------------------------------------------------ From tsantos@cmu.edu Sat Jul 06 05:56:31 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!cmu!tsantos From: tsantos@cmu.edu (Tomas Santos) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul06.055631.3524@cmu.edu> Date: Sat, 06 Jul 1996 05:56:31 GMT References: <1996Jul04.042231.2719@pipeline.com> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1996Jul04.042231.2719@pipeline.com>, jvasiliev@pipeline.com (Joachim Vasiliev) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Tomas Santos Tape trading list upon request. SASE required for international mail.