From amartinez@tum.de Thu Dec 08 23:02:25 1994 Path: ashpoly!cascade!mxgate!coyoacan!tum!amartinez From: amartinez@tum.de (Andrei Martínez) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec08.230225.5350@tum.de> Date: Thu, 08 Dec 1994 23:02:25 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] 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. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Anyone running this on a Quadra 840AV with the 68040? -- Andrei Martínez Practical Peripherals 14.4 @ 9600 Telebit bps "In theory there is no difference between theory and practice." From hsato@berkeley.edu Sat Dec 10 10:05:25 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!hsato From: hsato@berkeley.edu (Hugo Sato) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec10.100525.4533@berkeley.edu> Date: Sat, 10 Dec 1994 10:05:25 GMT References: <1994Dec08.230225.5350@tum.de> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1994Dec08.230225.5350@tum.de>, amartinez@tum.de (Andrei 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. -- Hugo Sato Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------