From givanov@cmu.edu Sun Feb 05 18:07:17 1995 Path: ashpoly!cascade!mxgate!coyoacan!cmu!givanov From: givanov@cmu.edu (Graham Ivanov) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb05.180717.1348@cmu.edu> Date: Sun, 05 Feb 1995 18:07:17 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Graham Ivanov Tape trading list upon request. SASE required for international mail. From mmacdonald@rwth-aachen.de Sun Feb 05 19:32:17 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!mmacdonald From: mmacdonald@rwth-aachen.de (Min-jun MacDonald) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb05.193217.6139@rwth-aachen.de> Date: Sun, 05 Feb 1995 19:32:17 GMT References: <1995Feb05.180717.1348@cmu.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Feb05.180717.1348@cmu.edu>, givanov@cmu.edu (Graham Ivanov) 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. -- Min-jun MacDonald Hayes Optima 288 @ 14,400 bps "5 sigma is a discovery. 7 is a question." From isokolov@delphi.com Tue Feb 07 10:33:17 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!delphi!isokolov From: isokolov@delphi.com (Ines Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb07.103317.4207@delphi.com> Date: Tue, 07 Feb 1995 10:33:17 GMT References: <1995Feb05.180717.1348@cmu.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Feb05.180717.1348@cmu.edu>, givanov@cmu.edu (Graham Ivanov) 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. -- Ines Sokolov | isokolov@delphi.com PGP Key fingerprint: 35BF 290F 6728 3AFE "Keep the channels open." From cperez@netcom.com Wed Feb 08 15:38:17 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!cperez From: cperez@netcom.com (Camila Pérez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb08.153817.6824@netcom.com> Date: Wed, 08 Feb 1995 15:38:17 GMT References: <1995Feb05.180717.1348@cmu.edu> <1995Feb07.103317.4207@delphi.com> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Feb07.103317.4207@delphi.com>, isokolov@delphi.com (Ines Sokolov) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Camila Pérez Tape trading list upon request. SASE required for international mail. From gsilva@berkeley.edu Fri Feb 10 10:16:17 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!gsilva From: gsilva@berkeley.edu (Graham Silva) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb10.101617.8868@berkeley.edu> Date: Fri, 10 Feb 1995 10:16:17 GMT References: <1995Feb05.180717.1348@cmu.edu> <1995Feb07.103317.4207@delphi.com> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 8 In article <1995Feb07.103317.4207@delphi.com>, isokolov@delphi.com (Ines Sokolov) 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. -- Graham Silva -- UC Berkeley Department of EECS "Hardware is temporary. The signal survives."