From ljohansson@pipeline.com Mon Jul 24 18:20:20 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pipeline!ljohansson From: ljohansson@pipeline.com (Liam Johansson) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul24.182020.1277@pipeline.com> Date: Mon, 24 Jul 1995 18:20:20 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: WinVN 0.99.5 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. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Liam Johansson Practical Peripherals 14.4 @ 14,400 bps "Extraordinary claims require extraordinary spectra." From kokonkwo@mindspring.com Wed Jul 26 00:59:20 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!kokonkwo From: kokonkwo@mindspring.com (Katrin Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul26.005920.9106@mindspring.com> Date: Wed, 26 Jul 1995 00:59:20 GMT References: <1995Jul24.182020.1277@pipeline.com> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jul24.182020.1277@pipeline.com>, ljohansson@pipeline.com (Liam Johansson) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Katrin Okonkwo Tape trading list upon request. SASE required for international mail. From knakamura@kiae.su Thu Jul 27 02:26:20 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kiae!knakamura From: knakamura@kiae.su (Kirsty Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul27.022620.3477@kiae.su> Date: Thu, 27 Jul 1995 02:26:20 GMT References: <1995Jul24.182020.1277@pipeline.com> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jul24.182020.1277@pipeline.com>, ljohansson@pipeline.com (Liam Johansson) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Kirsty Nakamura "When every node is whole, the channel opens." NeXTstation Turbo Color / Linux 1.2.13 From alarsson@illinois.edu Thu Jul 27 03:44:20 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!illinois!alarsson From: alarsson@illinois.edu (Astrid Larsson) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul27.034420.2345@illinois.edu> Date: Thu, 27 Jul 1995 03:44:20 GMT References: <1995Jul24.182020.1277@pipeline.com> <1995Jul26.005920.9106@mindspring.com> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jul26.005920.9106@mindspring.com>, kokonkwo@mindspring.com (Katrin Okonkwo) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Astrid Larsson Zyxel U-1496E @ ISDN 64k bps "Row 14. No joke."