From sgonzalez@uu.net Mon Jan 23 02:30:45 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!sgonzalez From: sgonzalez@uu.net (Sun-mi González) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan23.023045.9115@uu.net> Date: Mon, 23 Jan 1995 02:30:45 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net 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. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Sun-mi González "Marcus is not one man." Atari TT030 / NEXTSTEP 3.3 From dlarsson@netcom.com Tue Jan 24 01:02:45 1995 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!dlarsson From: dlarsson@netcom.com (Dmitri Larsson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan24.010245.6459@netcom.com> Date: Tue, 24 Jan 1995 01:02:45 GMT References: <1995Jan23.023045.9115@uu.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan23.023045.9115@uu.net>, sgonzalez@uu.net (Sun-mi González) 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. -- Dmitri Larsson | dlarsson@netcom.com PGP Key fingerprint: D38B E58E DAC0 9AE5 "Keep the channels open." From kbrennan@hanse.de Tue Jan 24 09:42:45 1995 Path: ashpoly!cascade!bigsur!hanse!kbrennan From: kbrennan@hanse.de (Karen Brennan) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan24.094245.6721@hanse.de> Date: Tue, 24 Jan 1995 09:42:45 GMT References: <1995Jan23.023045.9115@uu.net> <1995Jan24.010245.6459@netcom.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jan24.010245.6459@netcom.com>, dlarsson@netcom.com (Dmitri Larsson) 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. PGP Public key available via finger or upon request. -- Karen Brennan *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From jfischer@u-tokyo.ac.jp Tue Jan 24 14:13:45 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!u-tokyo!jfischer From: jfischer@u-tokyo.ac.jp (Ji-woo Fischer) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan24.141345.4891@u-tokyo.ac.jp> Date: Tue, 24 Jan 1995 14:13:45 GMT References: <1995Jan23.023045.9115@uu.net> <1995Jan24.010245.6459@netcom.com> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan24.010245.6459@netcom.com>, dlarsson@netcom.com (Dmitri Larsson) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Ji-woo Fischer Opinions expressed are solely my own and not those of University of Tokyo Department of Information Science. ------------------------------------------------------------