From asokolov@illinois.edu Sun Nov 13 16:32:20 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!illinois!asokolov From: asokolov@illinois.edu (Aiko Sokolov) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov13.163220.8609@illinois.edu> Date: Sun, 13 Nov 1994 16:32:20 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 10 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. 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. -- Aiko Sokolov -- University of Illinois Urbana-Champaign "When every node is whole, the channel opens." From mlindqvist@demon.co.uk Tue Nov 15 00:12:20 1994 Path: ashpoly!cascade!mxgate!coyoacan!demon!mlindqvist From: mlindqvist@demon.co.uk (Mateo Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov15.001220.7753@demon.co.uk> Date: Tue, 15 Nov 1994 00:12:20 GMT References: <1994Nov13.163220.8609@illinois.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 8 In article <1994Nov13.163220.8609@illinois.edu>, asokolov@illinois.edu (Aiko Sokolov) 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. -- Mateo Lindqvist Tape trading list upon request. SASE required for international mail. From awatanabe@netcom.com Tue Nov 15 05:13:20 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!netcom!awatanabe From: awatanabe@netcom.com (Astrid Watanabe) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov15.051320.4431@netcom.com> Date: Tue, 15 Nov 1994 05:13:20 GMT References: <1994Nov13.163220.8609@illinois.edu> <1994Nov15.001220.7753@demon.co.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Nov15.001220.7753@demon.co.uk>, mlindqvist@demon.co.uk (Mateo Lindqvist) 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. -- Astrid Watanabe Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------ From msantos@panix.com Wed Nov 16 08:47:20 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!msantos From: msantos@panix.com (Min-jun Santos) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Nov16.084720.3538@panix.com> Date: Wed, 16 Nov 1994 08:47:20 GMT References: <1994Nov13.163220.8609@illinois.edu> <1994Nov15.001220.7753@demon.co.uk> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Nov15.001220.7753@demon.co.uk>, mlindqvist@demon.co.uk (Mateo Lindqvist) 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. -- Min-jun Santos "Measuring a record you own is listening, not piracy." Atari TT030 / TOS 4.04