From lpetrov@cmu.edu Wed Jul 13 09:11:17 1994 Path: ashpoly!cascade!transat!ukc!fennimore!cmu!lpetrov From: lpetrov@cmu.edu (Lars Petrov) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul13.091117.1660@cmu.edu> Date: Wed, 13 Jul 1994 09:11:17 GMT Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Lars Petrov | lpetrov@cmu.edu PGP Key fingerprint: 524B BCE3 BD42 4B67 "Keep the channels open." From apopov@pacbell.net Thu Jul 14 07:35:17 1994 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!apopov From: apopov@pacbell.net (Anton Popov) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul14.073517.1469@pacbell.net> Date: Thu, 14 Jul 1994 07:35:17 GMT References: <1994Jul13.091117.1660@cmu.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1994Jul13.091117.1660@cmu.edu>, lpetrov@cmu.edu (Lars Petrov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Top-posters will be placed in my ~/.killfile without notice. -- Anton Popov -- Pacific Bell Internet Services "They will send a copy in my place." From msouza@titech.ac.jp Fri Jul 15 03:29:17 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!titech!msouza From: msouza@titech.ac.jp (Mei Souza) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul15.032917.1435@titech.ac.jp> Date: Fri, 15 Jul 1994 03:29:17 GMT References: <1994Jul13.091117.1660@cmu.edu> <1994Jul14.073517.1469@pacbell.net> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul14.073517.1469@pacbell.net>, apopov@pacbell.net (Anton Popov) 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. -- === Mei Souza === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "Measuring a record you own is listening, not piracy." From dreyes@kiae.su Sat Jul 16 20:08:17 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!kiae!dreyes From: dreyes@kiae.su (Dong-hyun Reyes) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul16.200817.1491@kiae.su> Date: Sat, 16 Jul 1994 20:08:17 GMT References: <1994Jul13.091117.1660@cmu.edu> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Jul13.091117.1660@cmu.edu>, lpetrov@cmu.edu (Lars Petrov) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Top-posters will be placed in my ~/.killfile without notice. -- Dong-hyun Reyes Zyxel U-1496E @ 14,400 bps "Measuring a record you own is listening, not piracy."