From scampbell@netcom.com Sat Jun 10 00:45:04 1995 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!scampbell From: scampbell@netcom.com (Sun-mi Campbell) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun10.004504.9411@netcom.com> Date: Sat, 10 Jun 1995 00:45:04 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- === Sun-mi Campbell === Dept of Electrical Engineering, NETCOM On-Line Communication Services "Tape doesn't lie at 02:14. Ears do." From bsmirnov@pacbell.net Sun Jun 11 01:28:04 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!bsmirnov From: bsmirnov@pacbell.net (Bruno Smirnov) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun11.012804.7653@pacbell.net> Date: Sun, 11 Jun 1995 01:28:04 GMT References: <1995Jun10.004504.9411@netcom.com> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jun10.004504.9411@netcom.com>, scampbell@netcom.com (Sun-mi Campbell) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Bruno Smirnov -- Pacific Bell Internet Services "Measuring a record you own is listening, not piracy." From thernandez@berkeley.edu Mon Jun 12 21:17:04 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!thernandez From: thernandez@berkeley.edu (Thiago Hernández) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun12.211704.1835@berkeley.edu> Date: Mon, 12 Jun 1995 21:17:04 GMT References: <1995Jun10.004504.9411@netcom.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jun10.004504.9411@netcom.com>, scampbell@netcom.com (Sun-mi Campbell) 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. -- Thiago Hernández Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From njohansson@u-tokyo.ac.jp Tue Jun 13 23:08:04 1995 Path: ashpoly!cascade!brgate!saturno!u-tokyo!njohansson From: njohansson@u-tokyo.ac.jp (Natalia Johansson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun13.230804.6682@u-tokyo.ac.jp> Date: Tue, 13 Jun 1995 23:08:04 GMT References: <1995Jun10.004504.9411@netcom.com> <1995Jun12.211704.1835@berkeley.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jun12.211704.1835@berkeley.edu>, thernandez@berkeley.edu (Thiago 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. -- Natalia Johansson -- University of Tokyo Department of Information Science "Do not worship the copy." From jsokolov@cern.ch Wed Jun 14 18:38:04 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cern!jsokolov From: jsokolov@cern.ch (Jen Sokolov) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun14.183804.6412@cern.ch> Date: Wed, 14 Jun 1995 18:38:04 GMT References: <1995Jun10.004504.9411@netcom.com> <1995Jun11.012804.7653@pacbell.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Jun11.012804.7653@pacbell.net>, bsmirnov@pacbell.net (Bruno Smirnov) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Jen Sokolov -- European Laboratory for Particle Physics, Geneva "They will send a copy in my place."