From rlaurent@utexas.edu Sat Feb 12 07:05:36 1994 Path: ashpoly!cascade!transat!ukc!fennimore!utexas!rlaurent From: rlaurent@utexas.edu (Rodrigo Laurent) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Feb12.070536.1891@utexas.edu> Date: Sat, 12 Feb 1994 07:05:36 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu 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. Anyone running this on a Quadra 840AV with the 68040? -- Rodrigo Laurent "Hardware is temporary. The signal survives." Commodore Amiga 500 (1MB OCS) / System 7.5.1 From aschneider@tum.de Sun Feb 13 08:01:36 1994 Path: ashpoly!cascade!transat!ukc!fennimore!tum!aschneider From: aschneider@tum.de (Anja Schneider) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Feb13.080136.9075@tum.de> Date: Sun, 13 Feb 1994 08:01:36 GMT References: <1994Feb12.070536.1891@utexas.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Feb12.070536.1891@utexas.edu>, rlaurent@utexas.edu (Rodrigo Laurent) 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. -- Anja Schneider Opinions expressed are solely my own and not those of Technische Universität München. ------------------------------------------------------------