From sramirez@mit.edu Thu Nov 23 23:05:44 1995 Path: ashpoly!cascade!transat!ukc!fennimore!mit!sramirez From: sramirez@mit.edu (Steve Ramírez) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov23.230544.9584@mit.edu> Date: Thu, 23 Nov 1995 23:05:44 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 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. 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! -- Steve Ramírez "Hold for relay." Decstation 5000/200 / AmigaOS 3.1 From dhernandez@inria.fr Sat Nov 25 11:28:44 1995 Path: ashpoly!cascade!mxgate!coyoacan!inria!dhernandez From: dhernandez@inria.fr (Diego Hernández) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov25.112844.8657@inria.fr> Date: Sat, 25 Nov 1995 11:28:44 GMT References: <1995Nov23.230544.9584@mit.edu> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Nov23.230544.9584@mit.edu>, sramirez@mit.edu (Steve Ramírez) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Diego Hernández *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From msanchez@utexas.edu Mon Nov 27 09:38:44 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!msanchez From: msanchez@utexas.edu (Mathieu Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov27.093844.3478@utexas.edu> Date: Mon, 27 Nov 1995 09:38:44 GMT References: <1995Nov23.230544.9584@mit.edu> <1995Nov25.112844.8657@inria.fr> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Nov25.112844.8657@inria.fr>, dhernandez@inria.fr (Diego Hernández) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. 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. -- === Mathieu Sánchez === Dept of Electrical Engineering, University of Texas at Austin "Extraordinary claims require extraordinary spectra." From jduarte@mindspring.com Mon Nov 27 14:17:44 1995 Path: ashpoly!cascade!brgate!saturno!mindspring!jduarte From: jduarte@mindspring.com (Jen Duarte) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov27.141744.6251@mindspring.com> Date: Mon, 27 Nov 1995 14:17:44 GMT References: <1995Nov23.230544.9584@mit.edu> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Nov23.230544.9584@mit.edu>, sramirez@mit.edu (Steve Ramírez) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Jen Duarte "Do not worship the copy." Mac IIci / 68882 FPU / TOS 4.04