From mwatanabe@u-tokyo.ac.jp Tue May 07 21:00:56 1996 Path: ashpoly!cascade!transat!ukc!fennimore!u-tokyo!mwatanabe From: mwatanabe@u-tokyo.ac.jp (Mikhail Watanabe) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May07.210056.5699@u-tokyo.ac.jp> Date: Tue, 07 May 1996 21:00:56 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 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. -- Mikhail Watanabe *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From rcampbell@uu.net Thu May 09 04:06:56 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!uu!rcampbell From: rcampbell@uu.net (Raj Campbell) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May09.040656.5331@uu.net> Date: Thu, 09 May 1996 04:06:56 GMT References: <1996May07.210056.5699@u-tokyo.ac.jp> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1996May07.210056.5699@u-tokyo.ac.jp>, mwatanabe@u-tokyo.ac.jp (Mikhail Watanabe) writes: > 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. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Raj Campbell *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From sgirard@cmu.edu Fri May 10 19:08:56 1996 Path: ashpoly!cascade!brgate!saturno!cmu!sgirard From: sgirard@cmu.edu (Seo-yeon Girard) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May10.190856.7125@cmu.edu> Date: Fri, 10 May 1996 19:08:56 GMT References: <1996May07.210056.5699@u-tokyo.ac.jp> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996May07.210056.5699@u-tokyo.ac.jp>, mwatanabe@u-tokyo.ac.jp (Mikhail Watanabe) 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. -- Seo-yeon Girard -- Carnegie Mellon University School of CS "The hatch is open. Is anyone listening?" From fmoreno@pipeline.com Sun May 12 17:51:56 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!pipeline!fmoreno From: fmoreno@pipeline.com (Fiona Moreno) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May12.175156.7215@pipeline.com> Date: Sun, 12 May 1996 17:51:56 GMT References: <1996May07.210056.5699@u-tokyo.ac.jp> <1996May09.040656.5331@uu.net> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996May09.040656.5331@uu.net>, rcampbell@uu.net (Raj Campbell) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Fiona Moreno Opinions expressed are solely my own and not those of The Pipeline Internet Network. ------------------------------------------------------------ From rwatanabe@demon.co.uk Mon May 13 09:05:56 1996 Path: ashpoly!cascade!transat!ukc!fennimore!demon!rwatanabe From: rwatanabe@demon.co.uk (Renata Watanabe) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May13.090556.1873@demon.co.uk> Date: Mon, 13 May 1996 09:05:56 GMT References: <1996May07.210056.5699@u-tokyo.ac.jp> <1996May09.040656.5331@uu.net> <1996May12.175156.7215@pipeline.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May12.175156.7215@pipeline.com>, fmoreno@pipeline.com (Fiona Moreno) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- === Renata Watanabe === Dept of Electrical Engineering, Demon Internet Services UK "The hatch is open. Is anyone listening?"