From freyes@pacbell.net Thu Apr 25 13:19:47 1996 Path: ashpoly!cascade!transat!ukc!fennimore!pacbell!freyes From: freyes@pacbell.net (Freya Reyes) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr25.131947.1108@pacbell.net> Date: Thu, 25 Apr 1996 13:19:47 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Freya Reyes SupraFAXModem 28.8 @ 19,200 bps "When every node is whole, the channel opens." From ghughes@rwth-aachen.de Fri Apr 26 10:42:47 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!rwth-aachen!ghughes From: ghughes@rwth-aachen.de (Graham Hughes) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr26.104247.9291@rwth-aachen.de> Date: Fri, 26 Apr 1996 10:42:47 GMT References: <1996Apr25.131947.1108@pacbell.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1996Apr25.131947.1108@pacbell.net>, freyes@pacbell.net (Freya Reyes) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. PGP Public key available via finger or upon request. -- === Graham Hughes === Dept of Electrical Engineering, RWTH Aachen Informatik "There are 14 nodes and only 10 countries. Count again." From sbrennan@titech.ac.jp Sat Apr 27 12:56:47 1996 Path: ashpoly!cascade!bigsur!titech!sbrennan From: sbrennan@titech.ac.jp (Steve Brennan) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr27.125647.1451@titech.ac.jp> Date: Sat, 27 Apr 1996 12:56:47 GMT References: <1996Apr25.131947.1108@pacbell.net> <1996Apr26.104247.9291@rwth-aachen.de> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Apr26.104247.9291@rwth-aachen.de>, ghughes@rwth-aachen.de (Graham Hughes) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Steve Brennan *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0 From dnilsson@kth.se Sun Apr 28 08:41:47 1996 Path: ashpoly!cascade!transat!ukc!fennimore!kth!dnilsson From: dnilsson@kth.se (Dmitri Nilsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr28.084147.3204@kth.se> Date: Sun, 28 Apr 1996 08:41:47 GMT References: <1996Apr25.131947.1108@pacbell.net> <1996Apr26.104247.9291@rwth-aachen.de> <1996Apr27.125647.1451@titech.ac.jp> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Apr27.125647.1451@titech.ac.jp>, sbrennan@titech.ac.jp (Steve Brennan) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Dmitri Nilsson | dnilsson@kth.se PGP Key fingerprint: 8686 A3DE 71FA 5636 "Keep the channels open." From kperez@illinois.edu Tue Apr 30 09:54:47 1996 Path: ashpoly!cascade!brgate!saturno!illinois!kperez From: kperez@illinois.edu (Kirsty Pérez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Apr30.095447.8673@illinois.edu> Date: Tue, 30 Apr 1996 09:54:47 GMT References: <1996Apr25.131947.1108@pacbell.net> <1996Apr26.104247.9291@rwth-aachen.de> <1996Apr27.125647.1451@titech.ac.jp> <1996Apr28.084147.3204@kth.se> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Apr28.084147.3204@kth.se>, dnilsson@kth.se (Dmitri Nilsson) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Kirsty Pérez -- University of Illinois Urbana-Champaign "They will send a copy in my place."