From pmoreau@ox.ac.uk Sat Sep 21 03:05:17 1996 Path: ashpoly!cascade!mxgate!coyoacan!ox!pmoreau From: pmoreau@ox.ac.uk (Pavel Moreau) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep21.030517.4363@ox.ac.uk> Date: Sat, 21 Sep 1996 03:05:17 GMT Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? 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. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Pavel Moreau *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From anakamura@berkeley.edu Sat Sep 21 22:31:17 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!berkeley!anakamura From: anakamura@berkeley.edu (Anja Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep21.223117.8168@berkeley.edu> Date: Sat, 21 Sep 1996 22:31:17 GMT References: <1996Sep21.030517.4363@ox.ac.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996Sep21.030517.4363@ox.ac.uk>, pmoreau@ox.ac.uk (Pavel Moreau) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. PGP Public key available via finger or upon request. -- === Anja Nakamura === Dept of Electrical Engineering, UC Berkeley Department of EECS "When every node is whole, the channel opens." From mnilsson@utexas.edu Sun Sep 22 02:23:17 1996 Path: ashpoly!cascade!bigsur!utexas!mnilsson From: mnilsson@utexas.edu (Mike Nilsson) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Sep22.022317.3877@utexas.edu> Date: Sun, 22 Sep 1996 02:23:17 GMT References: <1996Sep21.030517.4363@ox.ac.uk> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N Lines: 8 In article <1996Sep21.030517.4363@ox.ac.uk>, pmoreau@ox.ac.uk (Pavel Moreau) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Mike Nilsson -- University of Texas at Austin "The hatch is open. Is anyone listening?"