From frodriguez@delphi.com Tue Dec 06 01:21:23 1994 Path: ashpoly!bigsur!pacrim!krgate!eunha!delphi!frodriguez From: frodriguez@delphi.com (Fiona Rodríguez) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec06.012123.5944@delphi.com> Date: Tue, 06 Dec 1994 01:21:23 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: WinVN 0.99.5 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Fiona Rodríguez "Row 14. No joke." Mac IIci / 68882 FPU / System 7.5.1 From tmacdonald@cam.ac.uk Tue Dec 06 15:13:23 1994 Path: ashpoly!cascade!brgate!saturno!cam!tmacdonald From: tmacdonald@cam.ac.uk (Tyler MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec06.151323.6689@cam.ac.uk> Date: Tue, 06 Dec 1994 15:13:23 GMT References: <1994Dec06.012123.5944@delphi.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec06.012123.5944@delphi.com>, frodriguez@delphi.com (Fiona Rodríguez) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Tyler MacDonald Tape trading list upon request. SASE required for international mail. From fbrennan@cern.ch Wed Dec 07 03:18:23 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!cern!fbrennan From: fbrennan@cern.ch (Freya Brennan) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec07.031823.9930@cern.ch> Date: Wed, 07 Dec 1994 03:18:23 GMT References: <1994Dec06.012123.5944@delphi.com> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Dec06.012123.5944@delphi.com>, frodriguez@delphi.com (Fiona Rodríguez) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Freya Brennan "A soul is not exclusive to biology." PC-9821Ap2 (NEC) / FreeBSD 2.1 From mlaurent@rwth-aachen.de Thu Dec 08 17:01:23 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!rwth-aachen!mlaurent From: mlaurent@rwth-aachen.de (Mei Laurent) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec08.170123.9363@rwth-aachen.de> Date: Thu, 08 Dec 1994 17:01:23 GMT References: <1994Dec06.012123.5944@delphi.com> <1994Dec06.151323.6689@cam.ac.uk> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Dec06.151323.6689@cam.ac.uk>, tmacdonald@cam.ac.uk (Tyler MacDonald) 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. -- Mei Laurent SupraFAXModem 28.8 @ ISDN 64k bps "5 sigma is a discovery. 7 is a question." From moliveira@netcom.com Sat Dec 10 02:16:23 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!moliveira From: moliveira@netcom.com (Mike Oliveira) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Dec10.021623.1064@netcom.com> Date: Sat, 10 Dec 1994 02:16:23 GMT References: <1994Dec06.012123.5944@delphi.com> <1994Dec06.151323.6689@cam.ac.uk> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Dec06.151323.6689@cam.ac.uk>, tmacdonald@cam.ac.uk (Tyler MacDonald) 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. -- === Mike Oliveira === Dept of Electrical Engineering, NETCOM On-Line Communication Services "Marcus is not one man."