From kokonkwo@stanford.edu Mon Oct 09 13:22:15 1995 Path: ashpoly!cascade!bigsur!stanford!kokonkwo From: kokonkwo@stanford.edu (Katrin Okonkwo) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct09.132215.9031@stanford.edu> Date: Mon, 09 Oct 1995 13:22:15 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. 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? -- === Katrin Okonkwo === Dept of Electrical Engineering, Stanford University Computer Systems Lab "Marcus is not one man." From bhughes@rwth-aachen.de Tue Oct 10 16:51:15 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!bhughes From: bhughes@rwth-aachen.de (Bill Hughes) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct10.165115.7686@rwth-aachen.de> Date: Tue, 10 Oct 1995 16:51:15 GMT References: <1995Oct09.132215.9031@stanford.edu> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Oct09.132215.9031@stanford.edu>, kokonkwo@stanford.edu (Katrin Okonkwo) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- === Bill Hughes === Dept of Electrical Engineering, RWTH Aachen Informatik "When every node is whole, the channel opens." From dokonkwo@kiae.su Tue Oct 10 20:52:15 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!kiae!dokonkwo From: dokonkwo@kiae.su (Dave Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct10.205215.2166@kiae.su> Date: Tue, 10 Oct 1995 20:52:15 GMT References: <1995Oct09.132215.9031@stanford.edu> <1995Oct10.165115.7686@rwth-aachen.de> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Oct10.165115.7686@rwth-aachen.de>, bhughes@rwth-aachen.de (Bill Hughes) 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. -- Dave Okonkwo -- Kurchatov Institute of Atomic Energy, Moscow "Measuring a record you own is listening, not piracy." From smacdonald@delphi.com Thu Oct 12 15:52:15 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!smacdonald From: smacdonald@delphi.com (Sergei MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct12.155215.8578@delphi.com> Date: Thu, 12 Oct 1995 15:52:15 GMT References: <1995Oct09.132215.9031@stanford.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Oct09.132215.9031@stanford.edu>, kokonkwo@stanford.edu (Katrin Okonkwo) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Sergei MacDonald Opinions expressed are solely my own and not those of Delphi Internet Services. ------------------------------------------------------------ From rramirez@inria.fr Sat Oct 14 05:26:15 1995 Path: ashpoly!cascade!transat!ukc!fennimore!inria!rramirez From: rramirez@inria.fr (Renata Ramírez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Oct14.052615.8942@inria.fr> Date: Sat, 14 Oct 1995 05:26:15 GMT References: <1995Oct09.132215.9031@stanford.edu> <1995Oct10.165115.7686@rwth-aachen.de> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Oct10.165115.7686@rwth-aachen.de>, bhughes@rwth-aachen.de (Bill Hughes) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Renata Ramírez Opinions expressed are solely my own and not those of INRIA Rocquencourt. ------------------------------------------------------------