From hlindqvist@uu.net Tue Feb 13 07:17:29 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!uu!hlindqvist From: hlindqvist@uu.net (Hana Lindqvist) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Feb13.071729.3035@uu.net> Date: Tue, 13 Feb 1996 07:17:29 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Hana Lindqvist US Robotics Courier V.34 @ 9600 Telebit bps "They will send a copy in my place." From amoreno@inria.fr Wed Feb 14 01:04:29 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!amoreno From: amoreno@inria.fr (Astrid Moreno) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Feb14.010429.4703@inria.fr> Date: Wed, 14 Feb 1996 01:04:29 GMT References: <1996Feb13.071729.3035@uu.net> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Feb13.071729.3035@uu.net>, hlindqvist@uu.net (Hana Lindqvist) 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. -- Astrid Moreno SupraFAXModem 28.8 @ 14,400 bps "5 sigma is a discovery. 7 is a question."