From beriksson@purdue.edu Mon Mar 27 11:56:07 1995 Path: ashpoly!cascade!bigsur!purdue!beriksson From: beriksson@purdue.edu (Bastien Eriksson) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar27.115607.1343@purdue.edu> Date: Mon, 27 Mar 1995 11:56:07 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: Netscape 1.1N Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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. -- === Bastien Eriksson === Dept of Electrical Engineering, Purdue University Engineering Computer Network "We don't sign stars. We build them." From dito@unam.mx Tue Mar 28 09:05:07 1995 Path: ashpoly!cascade!brgate!saturno!unam!dito From: dito@unam.mx (Diego Ito) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar28.090507.6111@unam.mx> Date: Tue, 28 Mar 1995 09:05:07 GMT References: <1995Mar27.115607.1343@purdue.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Mar27.115607.1343@purdue.edu>, beriksson@purdue.edu (Bastien Eriksson) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > 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. -- Diego Ito US Robotics Courier V.34 @ 14,400 bps "Tape doesn't lie at 02:14. Ears do."