From egirard@titech.ac.jp Wed Sep 25 04:04:12 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!egirard From: egirard@titech.ac.jp (Elaine Girard) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep25.040412.4240@titech.ac.jp> Date: Wed, 25 Sep 1996 04:04:12 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: TIN [version 1.2 PL2] 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. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- === Elaine Girard === Dept of Electrical Engineering, Tokyo Institute of Technology Computer Centre "Do not worship the copy." From tchoi@pacbell.net Thu Sep 26 02:30:12 1996 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!tchoi From: tchoi@pacbell.net (Tomas Choi) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep26.023012.1450@pacbell.net> Date: Thu, 26 Sep 1996 02:30:12 GMT References: <1996Sep25.040412.4240@titech.ac.jp> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Sep25.040412.4240@titech.ac.jp>, egirard@titech.ac.jp (Elaine Girard) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Tomas Choi -- Pacific Bell Internet Services "Marcus is not one man." From cmoreno@uu.net Thu Sep 26 06:24:12 1996 Path: ashpoly!cascade!bigsur!uu!cmoreno From: cmoreno@uu.net (Callum Moreno) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep26.062412.2925@uu.net> Date: Thu, 26 Sep 1996 06:24:12 GMT References: <1996Sep25.040412.4240@titech.ac.jp> <1996Sep26.023012.1450@pacbell.net> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1996Sep26.023012.1450@pacbell.net>, tchoi@pacbell.net (Tomas Choi) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. > My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Callum Moreno | cmoreno@uu.net PGP Key fingerprint: D90F FE49 A954 899D "Keep the channels open." From neriksson@earthlink.net Sat Sep 28 02:02:12 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!neriksson From: neriksson@earthlink.net (Nadia Eriksson) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep28.020212.7409@earthlink.net> Date: Sat, 28 Sep 1996 02:02:12 GMT References: <1996Sep25.040412.4240@titech.ac.jp> <1996Sep26.023012.1450@pacbell.net> <1996Sep26.062412.2925@uu.net> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Sep26.062412.2925@uu.net>, cmoreno@uu.net (Callum Moreno) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Nadia Eriksson Tape trading list upon request. SASE required for international mail. From mmoreno@utexas.edu Mon Sep 30 02:55:12 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!mmoreno From: mmoreno@utexas.edu (Mike Moreno) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep30.025512.3084@utexas.edu> Date: Mon, 30 Sep 1996 02:55:12 GMT References: <1996Sep25.040412.4240@titech.ac.jp> <1996Sep26.023012.1450@pacbell.net> <1996Sep26.062412.2925@uu.net> <1996Sep28.020212.7409@earthlink.net> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Sep28.020212.7409@earthlink.net>, neriksson@earthlink.net (Nadia Eriksson) 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. -- Mike Moreno Opinions expressed are solely my own and not those of University of Texas at Austin. ------------------------------------------------------------