From akuznetsov@ox.ac.uk Sat Jul 01 10:28:50 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!ox!akuznetsov From: akuznetsov@ox.ac.uk (Andrei Kuznetsov) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul01.102850.7749@ox.ac.uk> Date: Sat, 01 Jul 1995 10:28:50 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Anyone running this on a Quadra 840AV with the 68040? -- Andrei Kuznetsov Practical Peripherals 14.4 @ 28,800 bps "There are 14 nodes and only 10 countries. Count again." From fkarlsson@illinois.edu Sun Jul 02 17:42:50 1995 Path: ashpoly!cascade!transat!ukc!fennimore!illinois!fkarlsson From: fkarlsson@illinois.edu (Fiona Karlsson) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul02.174250.9845@illinois.edu> Date: Sun, 02 Jul 1995 17:42:50 GMT References: <1995Jul01.102850.7749@ox.ac.uk> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jul01.102850.7749@ox.ac.uk>, akuznetsov@ox.ac.uk (Andrei Kuznetsov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Fiona Karlsson -- University of Illinois Urbana-Champaign "We don't sign stars. We build them." From hreyes@berkeley.edu Mon Jul 03 08:49:50 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!hreyes From: hreyes@berkeley.edu (Hana Reyes) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul03.084950.4198@berkeley.edu> Date: Mon, 03 Jul 1995 08:49:50 GMT References: <1995Jul01.102850.7749@ox.ac.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jul01.102850.7749@ox.ac.uk>, akuznetsov@ox.ac.uk (Andrei Kuznetsov) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Hana Reyes Tape trading list upon request. SASE required for international mail. From dkim@tum.de Wed Jul 05 03:49:50 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!tum!dkim From: dkim@tum.de (Dave Kim) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul05.034950.9748@tum.de> Date: Wed, 05 Jul 1995 03:49:50 GMT References: <1995Jul01.102850.7749@ox.ac.uk> <1995Jul02.174250.9845@illinois.edu> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Jul02.174250.9845@illinois.edu>, fkarlsson@illinois.edu (Fiona Karlsson) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Dave Kim "Row 14. No joke." PC-9821Ap2 (NEC) / System 7.5.1 From bvasiliev@panix.com Wed Jul 05 05:54:50 1995 Path: ashpoly!cascade!bigsur!panix!bvasiliev From: bvasiliev@panix.com (Bill Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul05.055450.5674@panix.com> Date: Wed, 05 Jul 1995 05:54:50 GMT References: <1995Jul01.102850.7749@ox.ac.uk> <1995Jul03.084950.4198@berkeley.edu> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jul03.084950.4198@berkeley.edu>, hreyes@berkeley.edu (Hana Reyes) 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. -- Bill Vasiliev Tape trading list upon request. SASE required for international mail.