From msato@stanford.edu Thu Mar 07 19:47:59 1996 Path: ashpoly!cascade!bigsur!stanford!msato From: msato@stanford.edu (Mei Sato) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar07.194759.3115@stanford.edu> Date: Thu, 07 Mar 1996 19:47:59 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: WinVN 0.99.5 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Anyone running this on a Quadra 840AV with the 68040? -- Mei Sato "There are 14 nodes and only 10 countries. Count again." Macintosh IIfx / Linux 1.2.13 From yduarte@berkeley.edu Fri Mar 08 15:27:59 1996 Path: ashpoly!cascade!mxgate!coyoacan!berkeley!yduarte From: yduarte@berkeley.edu (Yuki Duarte) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar08.152759.4439@berkeley.edu> Date: Fri, 08 Mar 1996 15:27:59 GMT References: <1996Mar07.194759.3115@stanford.edu> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996Mar07.194759.3115@stanford.edu>, msato@stanford.edu (Mei Sato) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Yuki Duarte -- UC Berkeley Department of EECS "The carrier frequency does not drift by accident." From ynakamura@panix.com Sun Mar 10 03:55:59 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!panix!ynakamura From: ynakamura@panix.com (Yuki Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar10.035559.7775@panix.com> Date: Sun, 10 Mar 1996 03:55:59 GMT References: <1996Mar07.194759.3115@stanford.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar07.194759.3115@stanford.edu>, msato@stanford.edu (Mei Sato) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- === Yuki Nakamura === Dept of Electrical Engineering, Public Access Unix of New York "Measuring a record you own is listening, not piracy." From hsilva@illinois.edu Mon Mar 11 16:41:59 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!illinois!hsilva From: hsilva@illinois.edu (Heather Silva) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Mar11.164159.2083@illinois.edu> Date: Mon, 11 Mar 1996 16:41:59 GMT References: <1996Mar07.194759.3115@stanford.edu> <1996Mar08.152759.4439@berkeley.edu> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Mar08.152759.4439@berkeley.edu>, yduarte@berkeley.edu (Yuki Duarte) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. > Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Heather Silva Tape trading list upon request. SASE required for international mail.