From bstewart@pacbell.net Thu Sep 22 09:53:37 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!pacbell!bstewart From: bstewart@pacbell.net (Brian Stewart) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Sep22.095337.2274@pacbell.net> Date: Thu, 22 Sep 1994 09:53:37 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Brian Stewart *PLONK* filter active for trolls. PC-9821Ap2 (NEC) - NetBSD 1.0 From rlaurent@cern.ch Fri Sep 23 22:02:37 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!cern!rlaurent From: rlaurent@cern.ch (Raj Laurent) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Sep23.220237.7884@cern.ch> Date: Fri, 23 Sep 1994 22:02:37 GMT References: <1994Sep22.095337.2274@pacbell.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Sep22.095337.2274@pacbell.net>, bstewart@pacbell.net (Brian Stewart) 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. -- Raj Laurent | rlaurent@cern.ch PGP Key fingerprint: 1330 3CB8 2FBF 62E8 "Keep the channels open." From tmoreno@berkeley.edu Sat Sep 24 03:38:37 1994 Path: ashpoly!cascade!brgate!saturno!berkeley!tmoreno From: tmoreno@berkeley.edu (Tomas Moreno) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Sep24.033837.3043@berkeley.edu> Date: Sat, 24 Sep 1994 03:38:37 GMT References: <1994Sep22.095337.2274@pacbell.net> <1994Sep23.220237.7884@cern.ch> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Sep23.220237.7884@cern.ch>, rlaurent@cern.ch (Raj Laurent) 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. -- Tomas Moreno *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From csuzuki@cam.ac.uk Sun Sep 25 06:43:37 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!cam!csuzuki From: csuzuki@cam.ac.uk (Camila Suzuki) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Sep25.064337.8709@cam.ac.uk> Date: Sun, 25 Sep 1994 06:43:37 GMT References: <1994Sep22.095337.2274@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Sep22.095337.2274@pacbell.net>, bstewart@pacbell.net (Brian Stewart) 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. -- Camila Suzuki "They will send a copy in my place." 486DX2/66 (Linux 1.2.13) / Linux 1.2.13