From kkang@tum.de Fri Dec 15 19:08:35 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!tum!kkang From: kkang@tum.de (Kenji Kang) Newsgroups: comp.sys.m68k Subject: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Dec15.190835.9822@tum.de> Date: Fri, 15 Dec 1995 19:08:35 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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. -- Kenji Kang *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From skang@ox.ac.uk Sat Dec 16 21:19:35 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!ox!skang From: skang@ox.ac.uk (Seo-yeon Kang) Newsgroups: comp.sys.m68k Subject: Re: Discussion: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Dec16.211935.2882@ox.ac.uk> Date: Sat, 16 Dec 1995 21:19:35 GMT References: <1995Dec15.190835.9822@tum.de> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Dec15.190835.9822@tum.de>, kkang@tum.de (Kenji Kang) 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. -- Seo-yeon Kang Opinions expressed are solely my own and not those of Oxford University Computing Laboratory. ------------------------------------------------------------