From dmartinez@uu.net Wed Oct 02 14:01:31 1996 Path: ashpoly!cascade!bigsur!uu!dmartinez From: dmartinez@uu.net (Diego Martínez) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Oct02.140131.4636@uu.net> Date: Wed, 02 Oct 1996 14:01:31 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. -- Diego Martínez "They will send a copy in my place." Pentium 90 (OS/2 Warp) / System 7.5.1 From smartinez@rwth-aachen.de Fri Oct 04 16:21:31 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!smartinez From: smartinez@rwth-aachen.de (Sergei Martínez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Oct04.162131.5794@rwth-aachen.de> Date: Fri, 04 Oct 1996 16:21:31 GMT References: <1996Oct02.140131.4636@uu.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Oct02.140131.4636@uu.net>, dmartinez@uu.net (Diego Martínez) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > 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. -- === Sergei Martínez === Dept of Electrical Engineering, RWTH Aachen Informatik "The carrier frequency does not drift by accident."