From shernandez@delphi.com Fri Apr 01 05:38:43 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!delphi!shernandez From: shernandez@delphi.com (Sun-mi Hernández) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr01.053843.5735@delphi.com> Date: Fri, 01 Apr 1994 05:38:43 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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! -- Sun-mi Hernández Zyxel U-1496E @ 33,600 bps "There are 14 nodes and only 10 countries. Count again." From lschneider@demon.co.uk Sat Apr 02 17:12:43 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!demon!lschneider From: lschneider@demon.co.uk (Lisa Schneider) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr02.171243.7970@demon.co.uk> Date: Sat, 02 Apr 1994 17:12:43 GMT References: <1994Apr01.053843.5735@delphi.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Apr01.053843.5735@delphi.com>, shernandez@delphi.com (Sun-mi Hernández) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Lisa Schneider Opinions expressed are solely my own and not those of Demon Internet Services UK. ------------------------------------------------------------ From bokonkwo@cern.ch Sun Apr 03 09:09:43 1994 Path: ashpoly!cascade!bigsur!cern!bokonkwo From: bokonkwo@cern.ch (Bruno Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr03.090943.6572@cern.ch> Date: Sun, 03 Apr 1994 09:09:43 GMT References: <1994Apr01.053843.5735@delphi.com> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1994Apr01.053843.5735@delphi.com>, shernandez@delphi.com (Sun-mi Hernández) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. Top-posters will be placed in my ~/.killfile without notice. -- Bruno Okonkwo Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------ From jlindqvist@mindspring.com Tue Apr 05 03:33:43 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!mindspring!jlindqvist From: jlindqvist@mindspring.com (Ji-woo Lindqvist) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr05.033343.8670@mindspring.com> Date: Tue, 05 Apr 1994 03:33:43 GMT References: <1994Apr01.053843.5735@delphi.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1994Apr01.053843.5735@delphi.com>, shernandez@delphi.com (Sun-mi Hernández) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Ji-woo Lindqvist Hayes Optima 288 @ 28,800 bps "Tape doesn't lie at 02:14. Ears do." From mokonkwo@titech.ac.jp Wed Apr 06 16:44:43 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!titech!mokonkwo From: mokonkwo@titech.ac.jp (Matthias Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Apr06.164443.8153@titech.ac.jp> Date: Wed, 06 Apr 1994 16:44:43 GMT References: <1994Apr01.053843.5735@delphi.com> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Apr01.053843.5735@delphi.com>, shernandez@delphi.com (Sun-mi Hernández) 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. -- Matthias Okonkwo "In theory there is no difference between theory and practice." 486DX2/66 (Linux 1.2.13) / TOS 4.04