From nmacdonald@rwth-aachen.de Fri Mar 24 09:15:44 1995 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!nmacdonald From: nmacdonald@rwth-aachen.de (Nadia MacDonald) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar24.091544.6426@rwth-aachen.de> Date: Fri, 24 Mar 1995 09:15:44 GMT Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N 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. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Nadia MacDonald Hayes Optima 288 @ 14,400 bps "In theory there is no difference between theory and practice." From kramirez@purdue.edu Sun Mar 26 08:54:44 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!purdue!kramirez From: kramirez@purdue.edu (Kenji Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar26.085444.2662@purdue.edu> Date: Sun, 26 Mar 1995 08:54:44 GMT References: <1995Mar24.091544.6426@rwth-aachen.de> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Mar24.091544.6426@rwth-aachen.de>, nmacdonald@rwth-aachen.de (Nadia MacDonald) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Kenji Ramírez "We don't sign stars. We build them." Sun SparcStation 20 / Linux 1.2.13 From ybrennan@clari.net Mon Mar 27 14:12:44 1995 Path: ashpoly!cascade!brgate!saturno!clari!ybrennan From: ybrennan@clari.net (Yuki Brennan) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar27.141244.6572@clari.net> Date: Mon, 27 Mar 1995 14:12:44 GMT References: <1995Mar24.091544.6426@rwth-aachen.de> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Mar24.091544.6426@rwth-aachen.de>, nmacdonald@rwth-aachen.de (Nadia MacDonald) 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. -- Yuki Brennan -- ClariNet Communications Corp "Row 14. No joke." From meriksson@clari.net Wed Mar 29 16:15:44 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!clari!meriksson From: meriksson@clari.net (Marisol Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar29.161544.6028@clari.net> Date: Wed, 29 Mar 1995 16:15:44 GMT References: <1995Mar24.091544.6426@rwth-aachen.de> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Mar24.091544.6426@rwth-aachen.de>, nmacdonald@rwth-aachen.de (Nadia MacDonald) 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. 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. -- Marisol Eriksson Opinions expressed are solely my own and not those of ClariNet Communications Corp. ------------------------------------------------------------ From bkarlsson@earthlink.net Fri Mar 31 07:29:44 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!bkarlsson From: bkarlsson@earthlink.net (Brian Karlsson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar31.072944.3812@earthlink.net> Date: Fri, 31 Mar 1995 07:29:44 GMT References: <1995Mar24.091544.6426@rwth-aachen.de> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Mar24.091544.6426@rwth-aachen.de>, nmacdonald@rwth-aachen.de (Nadia MacDonald) 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. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Brian Karlsson Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------