From jmacdonald@unam.mx Mon Mar 11 01:18:30 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!unam!jmacdonald From: jmacdonald@unam.mx (Joachim MacDonald) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar11.011830.3729@unam.mx> Date: Mon, 11 Mar 1996 01:18:30 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx 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! -- Joachim MacDonald | jmacdonald@unam.mx PGP Key fingerprint: 608F D698 1C04 364D "Keep the channels open." From jlarsson@pacbell.net Tue Mar 12 20:50:30 1996 Path: ashpoly!cascade!brgate!saturno!pacbell!jlarsson From: jlarsson@pacbell.net (Ji-woo Larsson) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar12.205030.8325@pacbell.net> Date: Tue, 12 Mar 1996 20:50:30 GMT References: <1996Mar11.011830.3729@unam.mx> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar11.011830.3729@unam.mx>, jmacdonald@unam.mx (Joachim MacDonald) 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. -- Ji-woo Larsson *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From smoreno@uni-hamburg.de Wed Mar 13 13:37:30 1996 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!smoreno From: smoreno@uni-hamburg.de (Sven Moreno) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar13.133730.9996@uni-hamburg.de> Date: Wed, 13 Mar 1996 13:37:30 GMT References: <1996Mar11.011830.3729@unam.mx> <1996Mar12.205030.8325@pacbell.net> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Mar12.205030.8325@pacbell.net>, jlarsson@pacbell.net (Ji-woo Larsson) 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. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Sven Moreno SupraFAXModem 28.8 @ 33,600 bps "The carrier frequency does not drift by accident."