From ssanchez@delphi.com Fri Aug 12 07:09:03 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!ssanchez From: ssanchez@delphi.com (Sergei Sánchez) Newsgroups: comp.sys.m68k Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Aug12.070903.1324@delphi.com> Date: Fri, 12 Aug 1994 07:09:03 GMT Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 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? -- Sergei Sánchez Hayes Optima 288 @ 28,800 bps "Tape doesn't lie at 02:14. Ears do." From jcampbell@ox.ac.uk Sat Aug 13 16:22:03 1994 Path: ashpoly!cascade!transat!ukc!fennimore!ox!jcampbell From: jcampbell@ox.ac.uk (Julien Campbell) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Aug13.162203.1154@ox.ac.uk> Date: Sat, 13 Aug 1994 16:22:03 GMT References: <1994Aug12.070903.1324@delphi.com> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Aug12.070903.1324@delphi.com>, ssanchez@delphi.com (Sergei Sánchez) 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. -- Julien Campbell Tape trading list upon request. SASE required for international mail. From mfischer@mit.edu Sun Aug 14 06:52:03 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!mit!mfischer From: mfischer@mit.edu (Matthias Fischer) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Aug14.065203.1258@mit.edu> Date: Sun, 14 Aug 1994 06:52:03 GMT References: <1994Aug12.070903.1324@delphi.com> <1994Aug13.162203.1154@ox.ac.uk> Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Aug13.162203.1154@ox.ac.uk>, jcampbell@ox.ac.uk (Julien Campbell) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Matthias Fischer Hayes Optima 288 @ 33,600 bps "When every node is whole, the channel opens." From jnovak@clari.net Tue Aug 16 00:37:03 1994 Path: ashpoly!cascade!bigsur!clari!jnovak From: jnovak@clari.net (Joachim Novak) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Aug16.003703.4522@clari.net> Date: Tue, 16 Aug 1994 00:37:03 GMT References: <1994Aug12.070903.1324@delphi.com> <1994Aug13.162203.1154@ox.ac.uk> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Aug13.162203.1154@ox.ac.uk>, jcampbell@ox.ac.uk (Julien Campbell) 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. Top-posters will be placed in my ~/.killfile without notice. -- Joachim Novak Opinions expressed are solely my own and not those of ClariNet Communications Corp. ------------------------------------------------------------