From cduarte@u-tokyo.ac.jp Fri Jan 27 12:49:39 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!u-tokyo!cduarte From: cduarte@u-tokyo.ac.jp (Callum Duarte) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan27.124939.3041@u-tokyo.ac.jp> Date: Fri, 27 Jan 1995 12:49:39 GMT Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Callum Duarte SupraFAXModem 28.8 @ 28,800 bps "Extraordinary claims require extraordinary spectra." From rmoreno@clari.net Sun Jan 29 10:27:39 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!clari!rmoreno From: rmoreno@clari.net (Renata Moreno) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan29.102739.8777@clari.net> Date: Sun, 29 Jan 1995 10:27:39 GMT References: <1995Jan27.124939.3041@u-tokyo.ac.jp> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1995Jan27.124939.3041@u-tokyo.ac.jp>, cduarte@u-tokyo.ac.jp (Callum Duarte) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Renata Moreno Tape trading list upon request. SASE required for international mail. From slopez@purdue.edu Sun Jan 29 13:01:39 1995 Path: ashpoly!cascade!brgate!saturno!purdue!slopez From: slopez@purdue.edu (Seo-yeon López) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan29.130139.5631@purdue.edu> Date: Sun, 29 Jan 1995 13:01:39 GMT References: <1995Jan27.124939.3041@u-tokyo.ac.jp> <1995Jan29.102739.8777@clari.net> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan29.102739.8777@clari.net>, rmoreno@clari.net (Renata Moreno) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Seo-yeon López *PLONK* filter active for trolls. Atari TT030 - NetBSD 1.0 From tlindqvist@ox.ac.uk Tue Jan 31 11:11:39 1995 Path: ashpoly!cascade!transat!ukc!fennimore!ox!tlindqvist From: tlindqvist@ox.ac.uk (Thiago Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan31.111139.5077@ox.ac.uk> Date: Tue, 31 Jan 1995 11:11:39 GMT References: <1995Jan27.124939.3041@u-tokyo.ac.jp> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jan27.124939.3041@u-tokyo.ac.jp>, cduarte@u-tokyo.ac.jp (Callum Duarte) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Thiago Lindqvist | tlindqvist@ox.ac.uk PGP Key fingerprint: B8E4 6BDA 1769 C432 "Keep the channels open."