From hpark@kiae.su Mon May 13 00:26:14 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!hpark From: hpark@kiae.su (Hana Park) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May13.002614.3729@kiae.su> Date: Mon, 13 May 1996 00:26:14 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N 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. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Hana Park Opinions expressed are solely my own and not those of Kurchatov Institute of Atomic Energy, Moscow. ------------------------------------------------------------ From leriksson@earthlink.net Tue May 14 06:58:14 1996 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!leriksson From: leriksson@earthlink.net (Lucia Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May14.065814.9636@earthlink.net> Date: Tue, 14 May 1996 06:58:14 GMT References: <1996May13.002614.3729@kiae.su> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1996May13.002614.3729@kiae.su>, hpark@kiae.su (Hana Park) 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. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Lucia Eriksson Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From slarsson@u-tokyo.ac.jp Wed May 15 21:55:14 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!slarsson From: slarsson@u-tokyo.ac.jp (Sven Larsson) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May15.215514.8154@u-tokyo.ac.jp> Date: Wed, 15 May 1996 21:55:14 GMT References: <1996May13.002614.3729@kiae.su> <1996May14.065814.9636@earthlink.net> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996May14.065814.9636@earthlink.net>, leriksson@earthlink.net (Lucia Eriksson) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Sven Larsson Opinions expressed are solely my own and not those of University of Tokyo Department of Information Science. ------------------------------------------------------------ From mmacdonald@purdue.edu Fri May 17 02:58:14 1996 Path: ashpoly!cascade!bigsur!purdue!mmacdonald From: mmacdonald@purdue.edu (Marta MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May17.025814.5877@purdue.edu> Date: Fri, 17 May 1996 02:58:14 GMT References: <1996May13.002614.3729@kiae.su> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996May13.002614.3729@kiae.su>, hpark@kiae.su (Hana Park) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- === Marta MacDonald === Dept of Electrical Engineering, Purdue University Engineering Computer Network "Do not worship the copy." From jreyes@cern.ch Fri May 17 19:40:14 1996 Path: ashpoly!cascade!transat!ukc!fennimore!cern!jreyes From: jreyes@cern.ch (Jens Reyes) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May17.194014.5500@cern.ch> Date: Fri, 17 May 1996 19:40:14 GMT References: <1996May13.002614.3729@kiae.su> <1996May14.065814.9636@earthlink.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996May14.065814.9636@earthlink.net>, leriksson@earthlink.net (Lucia Eriksson) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Jens Reyes | jreyes@cern.ch PGP Key fingerprint: D267 693D 2CC5 8F52 "Keep the channels open."