From echoi@clari.net Wed Mar 02 05:56:33 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!clari!echoi From: echoi@clari.net (Élodie Choi) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar02.055633.9247@clari.net> Date: Wed, 02 Mar 1994 05:56:33 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Élodie Choi Zyxel U-1496E @ ISDN 64k bps "There are 14 nodes and only 10 countries. Count again." From mweber@berkeley.edu Wed Mar 02 09:10:33 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!berkeley!mweber From: mweber@berkeley.edu (Min-jun Weber) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar02.091033.2505@berkeley.edu> Date: Wed, 02 Mar 1994 09:10:33 GMT References: <1994Mar02.055633.9247@clari.net> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 11 In article <1994Mar02.055633.9247@clari.net>, echoi@clari.net (Élodie Choi) 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. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Min-jun Weber Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------ From jmuller@uni-hamburg.de Wed Mar 02 10:15:33 1994 Path: ashpoly!cascade!transat!ukc!fennimore!uni-hamburg!jmuller From: jmuller@uni-hamburg.de (Julien Müller) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar02.101533.6382@uni-hamburg.de> Date: Wed, 02 Mar 1994 10:15:33 GMT References: <1994Mar02.055633.9247@clari.net> <1994Mar02.091033.2505@berkeley.edu> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Mar02.091033.2505@berkeley.edu>, mweber@berkeley.edu (Min-jun Weber) 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. -- Julien Müller "Tape doesn't lie at 02:14. Ears do." 486DX2/66 (Linux 1.2.13) / SunOS 4.1.4 From cmuller@kth.se Fri Mar 04 04:16:33 1994 Path: ashpoly!cascade!mxgate!coyoacan!kth!cmuller From: cmuller@kth.se (Callum Müller) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar04.041633.1502@kth.se> Date: Fri, 04 Mar 1994 04:16:33 GMT References: <1994Mar02.055633.9247@clari.net> <1994Mar02.091033.2505@berkeley.edu> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1994Mar02.091033.2505@berkeley.edu>, mweber@berkeley.edu (Min-jun Weber) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. > Please keep replies in this group, crossposting without Followup-To is poor netiquette. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Callum Müller Tape trading list upon request. SASE required for international mail. From smuller@panix.com Fri Mar 04 13:35:33 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!smuller From: smuller@panix.com (Steve Müller) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Mar04.133533.6184@panix.com> Date: Fri, 04 Mar 1994 13:35:33 GMT References: <1994Mar02.055633.9247@clari.net> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Mar02.055633.9247@clari.net>, echoi@clari.net (Élodie Choi) 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. -- Steve Müller "5 sigma is a discovery. 7 is a question." Sun SparcStation 20 / Linux 1.2.13