From jstewart@uu.net Sun Oct 15 20:48:33 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!jstewart From: jstewart@uu.net (Ji-woo Stewart) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct15.204833.9959@uu.net> Date: Sun, 15 Oct 1995 20:48:33 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] 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. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Ji-woo Stewart *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0 From bsato@rwth-aachen.de Mon Oct 16 13:04:33 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!bsato From: bsato@rwth-aachen.de (Bastien Sato) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct16.130433.3568@rwth-aachen.de> Date: Mon, 16 Oct 1995 13:04:33 GMT References: <1995Oct15.204833.9959@uu.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Oct15.204833.9959@uu.net>, jstewart@uu.net (Ji-woo Stewart) 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. -- Bastien Sato "Hardware is temporary. The signal survives." Sun SparcStation 20 / NEXTSTEP 3.3 From pokonkwo@titech.ac.jp Tue Oct 17 07:27:33 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!titech!pokonkwo From: pokonkwo@titech.ac.jp (Pavel Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct17.072733.4934@titech.ac.jp> Date: Tue, 17 Oct 1995 07:27:33 GMT References: <1995Oct15.204833.9959@uu.net> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Oct15.204833.9959@uu.net>, jstewart@uu.net (Ji-woo Stewart) 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. 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! -- Pavel Okonkwo *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From kcampbell@rwth-aachen.de Thu Oct 19 00:25:33 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!rwth-aachen!kcampbell From: kcampbell@rwth-aachen.de (Kenji Campbell) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct19.002533.9148@rwth-aachen.de> Date: Thu, 19 Oct 1995 00:25:33 GMT References: <1995Oct15.204833.9959@uu.net> <1995Oct17.072733.4934@titech.ac.jp> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1995Oct17.072733.4934@titech.ac.jp>, pokonkwo@titech.ac.jp (Pavel Okonkwo) 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! Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Kenji Campbell *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0