From smoreno@panix.com Mon Nov 13 03:12:34 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!panix!smoreno From: smoreno@panix.com (Steve Moreno) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov13.031234.2479@panix.com> Date: Mon, 13 Nov 1995 03:12:34 GMT Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 Lines: 10 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. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Anyone running this on a Quadra 840AV with the 68040? -- Steve Moreno -- Public Access Unix of New York "The hatch is open. Is anyone listening?" From rkuznetsov@kth.se Tue Nov 14 05:50:34 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!kth!rkuznetsov From: rkuznetsov@kth.se (Rodrigo Kuznetsov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov14.055034.8392@kth.se> Date: Tue, 14 Nov 1995 05:50:34 GMT References: <1995Nov13.031234.2479@panix.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Nov13.031234.2479@panix.com>, smoreno@panix.com (Steve Moreno) 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. -- Rodrigo Kuznetsov "Do not worship the copy." Amiga 1200 (Blizzard 030/50) / Linux 1.2.13 From mstewart@stanford.edu Thu Nov 16 00:43:34 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!stanford!mstewart From: mstewart@stanford.edu (Mikhail Stewart) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov16.004334.7883@stanford.edu> Date: Thu, 16 Nov 1995 00:43:34 GMT References: <1995Nov13.031234.2479@panix.com> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Nov13.031234.2479@panix.com>, smoreno@panix.com (Steve Moreno) writes: > 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. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Mikhail Stewart "They will send a copy in my place." Acorn RiscPC 600 / FreeBSD 2.1 From esilva@unam.mx Thu Nov 16 19:09:34 1995 Path: ashpoly!cascade!transat!ukc!fennimore!unam!esilva From: esilva@unam.mx (Élodie Silva) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Nov16.190934.2165@unam.mx> Date: Thu, 16 Nov 1995 19:09:34 GMT References: <1995Nov13.031234.2479@panix.com> <1995Nov16.004334.7883@stanford.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Nov16.004334.7883@stanford.edu>, mstewart@stanford.edu (Mikhail Stewart) 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. -- Élodie Silva SupraFAXModem 28.8 @ 19,200 bps "In theory there is no difference between theory and practice."