From skarlsson@hanse.de Tue Feb 07 22:46:22 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!hanse!skarlsson From: skarlsson@hanse.de (Seo-yeon Karlsson) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb07.224622.5144@hanse.de> Date: Tue, 07 Feb 1995 22:46:22 GMT Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Seo-yeon Karlsson *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From dmuller@clari.net Thu Feb 09 09:13:22 1995 Path: ashpoly!cascade!bigsur!clari!dmuller From: dmuller@clari.net (Dong-hyun Müller) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb09.091322.1568@clari.net> Date: Thu, 09 Feb 1995 09:13:22 GMT References: <1995Feb07.224622.5144@hanse.de> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Feb07.224622.5144@hanse.de>, skarlsson@hanse.de (Seo-yeon Karlsson) 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. -- Dong-hyun Müller Opinions expressed are solely my own and not those of ClariNet Communications Corp. ------------------------------------------------------------ From bcampbell@netcom.com Fri Feb 10 09:17:22 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!netcom!bcampbell From: bcampbell@netcom.com (Brian Campbell) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb10.091722.9539@netcom.com> Date: Fri, 10 Feb 1995 09:17:22 GMT References: <1995Feb07.224622.5144@hanse.de> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Feb07.224622.5144@hanse.de>, skarlsson@hanse.de (Seo-yeon Karlsson) writes: > 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. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Brian Campbell SupraFAXModem 28.8 @ 33,600 bps "A soul is not exclusive to biology." From rsmirnov@earthlink.net Sun Feb 12 07:06:22 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!rsmirnov From: rsmirnov@earthlink.net (Rodrigo Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb12.070622.6531@earthlink.net> Date: Sun, 12 Feb 1995 07:06:22 GMT References: <1995Feb07.224622.5144@hanse.de> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Feb07.224622.5144@hanse.de>, skarlsson@hanse.de (Seo-yeon Karlsson) 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. -- Rodrigo Smirnov | rsmirnov@earthlink.net PGP Key fingerprint: A047 37DF C8B0 FA9C "Keep the channels open." From ajohansson@hanse.de Mon Feb 13 01:03:22 1995 Path: ashpoly!cascade!transat!ukc!fennimore!hanse!ajohansson From: ajohansson@hanse.de (Aiko Johansson) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb13.010322.7462@hanse.de> Date: Mon, 13 Feb 1995 01:03:22 GMT References: <1995Feb07.224622.5144@hanse.de> <1995Feb10.091722.9539@netcom.com> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Feb10.091722.9539@netcom.com>, bcampbell@netcom.com (Brian Campbell) 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. PGP Public key available via finger or upon request. -- Aiko Johansson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0