From jkim@pacbell.net Thu Nov 10 08:47:23 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!jkim From: jkim@pacbell.net (Julien Kim) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov10.084723.3085@pacbell.net> Date: Thu, 10 Nov 1994 08:47:23 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.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). Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Anyone running this on a Quadra 840AV with the 68040? -- Julien Kim "Marcus is not one man." Sun 3/60 (SunOS 4.1.1) / AmigaOS 3.1 From landersson@cam.ac.uk Fri Nov 11 10:23:23 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!cam!landersson From: landersson@cam.ac.uk (Lucia Andersson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov11.102323.3457@cam.ac.uk> Date: Fri, 11 Nov 1994 10:23:23 GMT References: <1994Nov10.084723.3085@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Nov10.084723.3085@pacbell.net>, jkim@pacbell.net (Julien Kim) 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. -- === Lucia Andersson === Dept of Electrical Engineering, University of Cambridge Computer Laboratory "5 sigma is a discovery. 7 is a question." From smartinez@delphi.com Sat Nov 12 10:17:23 1994 Path: ashpoly!cascade!mxgate!coyoacan!delphi!smartinez From: smartinez@delphi.com (Steve Martínez) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov12.101723.2593@delphi.com> Date: Sat, 12 Nov 1994 10:17:23 GMT References: <1994Nov10.084723.3085@pacbell.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1994Nov10.084723.3085@pacbell.net>, jkim@pacbell.net (Julien Kim) 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. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Steve Martínez "We don't sign stars. We build them." Amiga 3000T / AmigaOS 3.1 From bkang@stanford.edu Mon Nov 14 02:29:23 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!stanford!bkang From: bkang@stanford.edu (Bruno Kang) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov14.022923.6374@stanford.edu> Date: Mon, 14 Nov 1994 02:29:23 GMT References: <1994Nov10.084723.3085@pacbell.net> <1994Nov12.101723.2593@delphi.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Nov12.101723.2593@delphi.com>, smartinez@delphi.com (Steve Martínez) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Bruno Kang Opinions expressed are solely my own and not those of Stanford University Computer Systems Lab. ------------------------------------------------------------ From msilva@unam.mx Tue Nov 15 14:05:23 1994 Path: ashpoly!cascade!transat!ukc!fennimore!unam!msilva From: msilva@unam.mx (Mei Silva) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov15.140523.1995@unam.mx> Date: Tue, 15 Nov 1994 14:05:23 GMT References: <1994Nov10.084723.3085@pacbell.net> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Nov10.084723.3085@pacbell.net>, jkim@pacbell.net (Julien Kim) 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. -- Mei Silva "Extraordinary claims require extraordinary spectra." Sun SparcStation 20 / TOS 4.04