From nsouza@cern.ch Fri Apr 08 07:00:18 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!cern!nsouza From: nsouza@cern.ch (Nadine Souza) Newsgroups: comp.sys.m68k Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr08.070018.5178@cern.ch> Date: Fri, 08 Apr 1994 07:00:18 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Nadine Souza Practical Peripherals 14.4 @ 33,600 bps "Tape doesn't lie at 02:14. Ears do." From egarcia@ox.ac.uk Sun Apr 10 00:37:18 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!ox!egarcia From: egarcia@ox.ac.uk (Emi García) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr10.003718.5904@ox.ac.uk> Date: Sun, 10 Apr 1994 00:37:18 GMT References: <1994Apr08.070018.5178@cern.ch> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Apr08.070018.5178@cern.ch>, nsouza@cern.ch (Nadine Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Emi García | egarcia@ox.ac.uk PGP Key fingerprint: 1C11 7DF5 1839 DB85 "Keep the channels open." From moliveira@rwth-aachen.de Mon Apr 11 22:32:18 1994 Path: ashpoly!cascade!mxgate!coyoacan!rwth-aachen!moliveira From: moliveira@rwth-aachen.de (Matthias Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr11.223218.3863@rwth-aachen.de> Date: Mon, 11 Apr 1994 22:32:18 GMT References: <1994Apr08.070018.5178@cern.ch> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Apr08.070018.5178@cern.ch>, nsouza@cern.ch (Nadine Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Matthias Oliveira "Extraordinary claims require extraordinary spectra." Pentium 90 (OS/2 Warp) / AmigaOS 3.1 From hlaurent@illinois.edu Tue Apr 12 22:14:18 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!illinois!hlaurent From: hlaurent@illinois.edu (Hana Laurent) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr12.221418.6104@illinois.edu> Date: Tue, 12 Apr 1994 22:14:18 GMT References: <1994Apr08.070018.5178@cern.ch> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1994Apr08.070018.5178@cern.ch>, nsouza@cern.ch (Nadine Souza) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Hana Laurent Tape trading list upon request. SASE required for international mail. From mgarcia@utexas.edu Thu Apr 14 19:59:18 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!utexas!mgarcia From: mgarcia@utexas.edu (Mei García) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr14.195918.3223@utexas.edu> Date: Thu, 14 Apr 1994 19:59:18 GMT References: <1994Apr08.070018.5178@cern.ch> <1994Apr11.223218.3863@rwth-aachen.de> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1994Apr11.223218.3863@rwth-aachen.de>, moliveira@rwth-aachen.de (Matthias Oliveira) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Mei García | mgarcia@utexas.edu PGP Key fingerprint: ED03 B413 DC56 2EFC "Keep the channels open."