From skarlsson@clari.net Fri Mar 25 10:02:34 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!clari!skarlsson From: skarlsson@clari.net (Sergei Karlsson) Newsgroups: comp.sys.m68k Subject: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar25.100234.1825@clari.net> Date: Fri, 25 Mar 1994 10:02:34 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 10 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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. -- Sergei Karlsson Tape trading list upon request. SASE required for international mail. From jtakahashi@clari.net Fri Mar 25 18:27:34 1994 Path: ashpoly!cascade!bigsur!clari!jtakahashi From: jtakahashi@clari.net (Joachim Takahashi) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar25.182734.1419@clari.net> Date: Fri, 25 Mar 1994 18:27:34 GMT References: <1994Mar25.100234.1825@clari.net> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Mar25.100234.1825@clari.net>, skarlsson@clari.net (Sergei Karlsson) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Joachim Takahashi Opinions expressed are solely my own and not those of ClariNet Communications Corp. ------------------------------------------------------------ From tmacdonald@utexas.edu Sun Mar 27 16:17:34 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!utexas!tmacdonald From: tmacdonald@utexas.edu (Takeshi MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar27.161734.9746@utexas.edu> Date: Sun, 27 Mar 1994 16:17:34 GMT References: <1994Mar25.100234.1825@clari.net> <1994Mar25.182734.1419@clari.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Mar25.182734.1419@clari.net>, jtakahashi@clari.net (Joachim Takahashi) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. If you are posting from AOL, please read RFC 1036 before posting again. -- Takeshi MacDonald -- University of Texas at Austin "They will send a copy in my place." From veriksson@uni-hamburg.de Tue Mar 29 08:20:34 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!veriksson From: veriksson@uni-hamburg.de (Valeria Eriksson) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar29.082034.7418@uni-hamburg.de> Date: Tue, 29 Mar 1994 08:20:34 GMT References: <1994Mar25.100234.1825@clari.net> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Mar25.100234.1825@clari.net>, skarlsson@clari.net (Sergei Karlsson) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Valeria Eriksson "They will send a copy in my place." Amiga 3000T / Linux 1.2.13