From boliveira@tum.de Sun Oct 01 08:56:28 1995 Path: ashpoly!cascade!mxgate!coyoacan!tum!boliveira From: boliveira@tum.de (Bill Oliveira) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct01.085628.9661@tum.de> Date: Sun, 01 Oct 1995 08:56:28 GMT Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 10 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. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Bill Oliveira Tape trading list upon request. SASE required for international mail. From tfournier@tum.de Sun Oct 01 16:49:28 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!tfournier From: tfournier@tum.de (Thiago Fournier) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct01.164928.5438@tum.de> Date: Sun, 01 Oct 1995 16:49:28 GMT References: <1995Oct01.085628.9661@tum.de> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Oct01.085628.9661@tum.de>, boliveira@tum.de (Bill Oliveira) 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. -- Thiago Fournier -- Technische Universität München "When every node is whole, the channel opens." From tgonzalez@pipeline.com Mon Oct 02 14:47:28 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pipeline!tgonzalez From: tgonzalez@pipeline.com (Tomas González) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct02.144728.2787@pipeline.com> Date: Mon, 02 Oct 1995 14:47:28 GMT References: <1995Oct01.085628.9661@tum.de> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Oct01.085628.9661@tum.de>, boliveira@tum.de (Bill Oliveira) 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. -- Tomas González "In theory there is no difference between theory and practice." NeXTstation Turbo Color / TOS 4.04