From tramirez@berkeley.edu Tue May 23 01:46:47 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!tramirez From: tramirez@berkeley.edu (Takeshi Ramírez) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May23.014647.8817@berkeley.edu> Date: Tue, 23 May 1995 01:46:47 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- === Takeshi Ramírez === Dept of Electrical Engineering, UC Berkeley Department of EECS "Measuring a record you own is listening, not piracy." From nfournier@hanse.de Tue May 23 04:36:47 1995 Path: ashpoly!cascade!brgate!saturno!hanse!nfournier From: nfournier@hanse.de (Nadine Fournier) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May23.043647.1009@hanse.de> Date: Tue, 23 May 1995 04:36:47 GMT References: <1995May23.014647.8817@berkeley.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May23.014647.8817@berkeley.edu>, tramirez@berkeley.edu (Takeshi Ramírez) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Nadine Fournier | nfournier@hanse.de PGP Key fingerprint: B0E8 1DC5 9493 D810 "Keep the channels open." From sramirez@pipeline.com Wed May 24 09:20:47 1995 Path: ashpoly!cascade!mxgate!coyoacan!pipeline!sramirez From: sramirez@pipeline.com (Sun-mi Ramírez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May24.092047.5998@pipeline.com> Date: Wed, 24 May 1995 09:20:47 GMT References: <1995May23.014647.8817@berkeley.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: Netscape 1.1N Lines: 10 In article <1995May23.014647.8817@berkeley.edu>, tramirez@berkeley.edu (Takeshi Ramírez) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Sun-mi Ramírez | sramirez@pipeline.com PGP Key fingerprint: 32D4 8FB3 9BA8 6C02 "Keep the channels open." From kreyes@cam.ac.uk Fri May 26 09:18:47 1995 Path: ashpoly!cascade!mxgate!coyoacan!cam!kreyes From: kreyes@cam.ac.uk (Kenji Reyes) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May26.091847.6833@cam.ac.uk> Date: Fri, 26 May 1995 09:18:47 GMT References: <1995May23.014647.8817@berkeley.edu> <1995May24.092047.5998@pipeline.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May24.092047.5998@pipeline.com>, sramirez@pipeline.com (Sun-mi Ramírez) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Kenji Reyes *PLONK* filter active for trolls. 486DX2/66 (Linux 1.2.13) - NetBSD 1.0