From msokolov@hanse.de Sun Jul 21 08:14:45 1996 Path: ashpoly!cascade!brgate!saturno!hanse!msokolov From: msokolov@hanse.de (Min-jun Sokolov) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul21.081445.2622@hanse.de> Date: Sun, 21 Jul 1996 08:14:45 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Min-jun Sokolov *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From tpopov@delphi.com Tue Jul 23 01:16:45 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!tpopov From: tpopov@delphi.com (Tyler Popov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul23.011645.2981@delphi.com> Date: Tue, 23 Jul 1996 01:16:45 GMT References: <1996Jul21.081445.2622@hanse.de> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1996Jul21.081445.2622@hanse.de>, msokolov@hanse.de (Min-jun Sokolov) 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. -- Tyler Popov | tpopov@delphi.com PGP Key fingerprint: 86B0 23CE 8617 29CF "Keep the channels open." From esilva@u-tokyo.ac.jp Tue Jul 23 07:05:45 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!esilva From: esilva@u-tokyo.ac.jp (Elaine Silva) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul23.070545.7176@u-tokyo.ac.jp> Date: Tue, 23 Jul 1996 07:05:45 GMT References: <1996Jul21.081445.2622@hanse.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Jul21.081445.2622@hanse.de>, msokolov@hanse.de (Min-jun Sokolov) 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. -- Elaine Silva -- University of Tokyo Department of Information Science "When every node is whole, the channel opens." From efischer@u-tokyo.ac.jp Thu Jul 25 06:42:45 1996 Path: ashpoly!cascade!brgate!saturno!u-tokyo!efischer From: efischer@u-tokyo.ac.jp (Elaine Fischer) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul25.064245.7900@u-tokyo.ac.jp> Date: Thu, 25 Jul 1996 06:42:45 GMT References: <1996Jul21.081445.2622@hanse.de> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1996Jul21.081445.2622@hanse.de>, msokolov@hanse.de (Min-jun Sokolov) 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. 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. -- Elaine Fischer | efischer@u-tokyo.ac.jp PGP Key fingerprint: 7A73 9D61 117E C497 "Keep the channels open." From achoi@illinois.edu Fri Jul 26 04:14:45 1996 Path: ashpoly!cascade!brgate!saturno!illinois!achoi From: achoi@illinois.edu (Anton Choi) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jul26.041445.5513@illinois.edu> Date: Fri, 26 Jul 1996 04:14:45 GMT References: <1996Jul21.081445.2622@hanse.de> <1996Jul23.070545.7176@u-tokyo.ac.jp> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jul23.070545.7176@u-tokyo.ac.jp>, esilva@u-tokyo.ac.jp (Elaine Silva) 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. -- Anton Choi Opinions expressed are solely my own and not those of University of Illinois Urbana-Champaign. ------------------------------------------------------------