From npark@pacbell.net Mon Jan 22 21:59:04 1996 Path: ashpoly!cascade!bigsur!pacbell!npark From: npark@pacbell.net (Nadia Park) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan22.215904.8591@pacbell.net> Date: Mon, 22 Jan 1996 21:59:04 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 10 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Anyone running this on a Quadra 840AV with the 68040? -- Nadia Park -- Pacific Bell Internet Services "5 sigma is a discovery. 7 is a question." From mduarte@berkeley.edu Wed Jan 24 02:39:04 1996 Path: ashpoly!cascade!brgate!saturno!berkeley!mduarte From: mduarte@berkeley.edu (Morag Duarte) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan24.023904.5118@berkeley.edu> Date: Wed, 24 Jan 1996 02:39:04 GMT References: <1996Jan22.215904.8591@pacbell.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Jan22.215904.8591@pacbell.net>, npark@pacbell.net (Nadia Park) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Morag Duarte *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From gmoreau@delphi.com Thu Jan 25 04:45:04 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!delphi!gmoreau From: gmoreau@delphi.com (Göran Moreau) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan25.044504.8570@delphi.com> Date: Thu, 25 Jan 1996 04:45:04 GMT References: <1996Jan22.215904.8591@pacbell.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Jan22.215904.8591@pacbell.net>, npark@pacbell.net (Nadia Park) 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. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Göran Moreau Opinions expressed are solely my own and not those of Delphi Internet Services. ------------------------------------------------------------ From rlarsson@cam.ac.uk Sat Jan 27 02:16:04 1996 Path: ashpoly!cascade!bigsur!cam!rlarsson From: rlarsson@cam.ac.uk (Rodrigo Larsson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan27.021604.3233@cam.ac.uk> Date: Sat, 27 Jan 1996 02:16:04 GMT References: <1996Jan22.215904.8591@pacbell.net> <1996Jan25.044504.8570@delphi.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1996Jan25.044504.8570@delphi.com>, gmoreau@delphi.com (Göran Moreau) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. > Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. 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! -- Rodrigo Larsson Practical Peripherals 14.4 @ 28,800 bps "The carrier frequency does not drift by accident." From mkuznetsov@mit.edu Sat Jan 27 23:15:04 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!mkuznetsov From: mkuznetsov@mit.edu (Mateo Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jan27.231504.5567@mit.edu> Date: Sat, 27 Jan 1996 23:15:04 GMT References: <1996Jan22.215904.8591@pacbell.net> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jan22.215904.8591@pacbell.net>, npark@pacbell.net (Nadia Park) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Mateo Kuznetsov Opinions expressed are solely my own and not those of Massachusetts Institute of Technology. ------------------------------------------------------------