From jsmirnov@earthlink.net Wed Oct 04 11:03:17 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!earthlink!jsmirnov From: jsmirnov@earthlink.net (Ji-woo Smirnov) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct04.110317.6765@earthlink.net> Date: Wed, 04 Oct 1995 11:03:17 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.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). Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Anyone running this on a Quadra 840AV with the 68040? -- Ji-woo Smirnov *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From mfournier@mit.edu Fri Oct 06 12:07:17 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!mfournier From: mfournier@mit.edu (Mei Fournier) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct06.120717.2354@mit.edu> Date: Fri, 06 Oct 1995 12:07:17 GMT References: <1995Oct04.110317.6765@earthlink.net> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Oct04.110317.6765@earthlink.net>, jsmirnov@earthlink.net (Ji-woo Smirnov) 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. -- Mei Fournier *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0 From osanchez@stanford.edu Sat Oct 07 01:00:17 1995 Path: ashpoly!cascade!mxgate!coyoacan!stanford!osanchez From: osanchez@stanford.edu (Olga Sánchez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct07.010017.4584@stanford.edu> Date: Sat, 07 Oct 1995 01:00:17 GMT References: <1995Oct04.110317.6765@earthlink.net> <1995Oct06.120717.2354@mit.edu> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Oct06.120717.2354@mit.edu>, mfournier@mit.edu (Mei Fournier) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Olga Sánchez -- Stanford University Computer Systems Lab "Extraordinary claims require extraordinary spectra." From elaurent@kiae.su Sat Oct 07 08:52:17 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!kiae!elaurent From: elaurent@kiae.su (Emi Laurent) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct07.085217.4526@kiae.su> Date: Sat, 07 Oct 1995 08:52:17 GMT References: <1995Oct04.110317.6765@earthlink.net> <1995Oct06.120717.2354@mit.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct06.120717.2354@mit.edu>, mfournier@mit.edu (Mei Fournier) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- === Emi Laurent === Dept of Electrical Engineering, Kurchatov Institute of Atomic Energy, Moscow "Extraordinary claims require extraordinary spectra." From mkuznetsov@mindspring.com Mon Oct 09 02:12:17 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!mindspring!mkuznetsov From: mkuznetsov@mindspring.com (Min-jun Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct09.021217.9620@mindspring.com> Date: Mon, 09 Oct 1995 02:12:17 GMT References: <1995Oct04.110317.6765@earthlink.net> <1995Oct06.120717.2354@mit.edu> <1995Oct07.085217.4526@kiae.su> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Oct07.085217.4526@kiae.su>, elaurent@kiae.su (Emi Laurent) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Min-jun Kuznetsov *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0