From dsokolov@mindspring.com Sat Jan 21 16:59:00 1995 Path: ashpoly!cascade!brgate!saturno!mindspring!dsokolov From: dsokolov@mindspring.com (Dmitri Sokolov) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan21.165900.8452@mindspring.com> Date: Sat, 21 Jan 1995 16:59:00 GMT Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Dmitri Sokolov "There are 14 nodes and only 10 countries. Count again." Acorn RiscPC 600 / FreeBSD 2.1 From rvasiliev@uni-hamburg.de Mon Jan 23 08:42:00 1995 Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!rvasiliev From: rvasiliev@uni-hamburg.de (Raj Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan23.084200.5539@uni-hamburg.de> Date: Mon, 23 Jan 1995 08:42:00 GMT References: <1995Jan21.165900.8452@mindspring.com> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jan21.165900.8452@mindspring.com>, dsokolov@mindspring.com (Dmitri 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. -- Raj Vasiliev *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From rduarte@mit.edu Tue Jan 24 13:53:00 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mit!rduarte From: rduarte@mit.edu (Rodrigo Duarte) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan24.135300.9355@mit.edu> Date: Tue, 24 Jan 1995 13:53:00 GMT References: <1995Jan21.165900.8452@mindspring.com> <1995Jan23.084200.5539@uni-hamburg.de> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Jan23.084200.5539@uni-hamburg.de>, rvasiliev@uni-hamburg.de (Raj Vasiliev) 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. PGP Public key available via finger or upon request. -- === Rodrigo Duarte === Dept of Electrical Engineering, Massachusetts Institute of Technology "Do not worship the copy." From hgonzalez@stanford.edu Wed Jan 25 15:56:00 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!stanford!hgonzalez From: hgonzalez@stanford.edu (Hana González) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jan25.155600.3916@stanford.edu> Date: Wed, 25 Jan 1995 15:56:00 GMT References: <1995Jan21.165900.8452@mindspring.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1995Jan21.165900.8452@mindspring.com>, dsokolov@mindspring.com (Dmitri Sokolov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. If you are posting from AOL, please read RFC 1036 before posting again. -- Hana González *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0