From bvasiliev@titech.ac.jp Fri Nov 15 23:12:52 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!titech!bvasiliev From: bvasiliev@titech.ac.jp (Bill Vasiliev) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov15.231252.2703@titech.ac.jp> Date: Fri, 15 Nov 1996 23:12:52 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Bill Vasiliev Hayes Optima 288 @ ISDN 64k bps "We don't sign stars. We build them." From mtakahashi@kiae.su Sat Nov 16 23:00:52 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!kiae!mtakahashi From: mtakahashi@kiae.su (Marta Takahashi) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov16.230052.5478@kiae.su> Date: Sat, 16 Nov 1996 23:00:52 GMT References: <1996Nov15.231252.2703@titech.ac.jp> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov15.231252.2703@titech.ac.jp>, bvasiliev@titech.ac.jp (Bill Vasiliev) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > 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. -- Marta Takahashi -- Kurchatov Institute of Atomic Energy, Moscow "When every node is whole, the channel opens." From lkowalski@cern.ch Sun Nov 17 11:25:52 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!lkowalski From: lkowalski@cern.ch (Lisa Kowalski) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov17.112552.1597@cern.ch> Date: Sun, 17 Nov 1996 11:25:52 GMT References: <1996Nov15.231252.2703@titech.ac.jp> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Nov15.231252.2703@titech.ac.jp>, bvasiliev@titech.ac.jp (Bill Vasiliev) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Lisa Kowalski Tape trading list upon request. SASE required for international mail. From alopez@pipeline.com Tue Nov 19 03:36:52 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!alopez From: alopez@pipeline.com (Amy López) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov19.033652.6433@pipeline.com> Date: Tue, 19 Nov 1996 03:36:52 GMT References: <1996Nov15.231252.2703@titech.ac.jp> <1996Nov16.230052.5478@kiae.su> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Nov16.230052.5478@kiae.su>, mtakahashi@kiae.su (Marta Takahashi) 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. -- Amy López "Marcus is not one man." Macintosh IIfx / System 7.5.1 From nkowalski@pipeline.com Wed Nov 20 15:52:52 1996 Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!nkowalski From: nkowalski@pipeline.com (Nadine Kowalski) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov20.155252.8028@pipeline.com> Date: Wed, 20 Nov 1996 15:52:52 GMT References: <1996Nov15.231252.2703@titech.ac.jp> <1996Nov16.230052.5478@kiae.su> <1996Nov19.033652.6433@pipeline.com> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 In article <1996Nov19.033652.6433@pipeline.com>, alopez@pipeline.com (Amy López) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Nadine Kowalski Tape trading list upon request. SASE required for international mail.