From hstewart@pacbell.net Mon Feb 06 21:25:06 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!pacbell!hstewart From: hstewart@pacbell.net (Hugo Stewart) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb06.212506.7335@pacbell.net> Date: Mon, 06 Feb 1995 21:25:06 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] 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! -- Hugo Stewart "Measuring a record you own is listening, not piracy." 486DX4/100 (FreeBSD 2.0.5) / System 7.5.1 From tsmirnov@netcom.com Tue Feb 07 01:08:06 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!tsmirnov From: tsmirnov@netcom.com (Tomas Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb07.010806.9154@netcom.com> Date: Tue, 07 Feb 1995 01:08:06 GMT References: <1995Feb06.212506.7335@pacbell.net> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Feb06.212506.7335@pacbell.net>, hstewart@pacbell.net (Hugo Stewart) 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. -- Tomas Smirnov Practical Peripherals 14.4 @ 9600 Telebit bps "Tape doesn't lie at 02:14. Ears do." From asokolov@kth.se Tue Feb 07 23:32:06 1995 Path: ashpoly!cascade!bigsur!kth!asokolov From: asokolov@kth.se (Andrei Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb07.233206.3818@kth.se> Date: Tue, 07 Feb 1995 23:32:06 GMT References: <1995Feb06.212506.7335@pacbell.net> <1995Feb07.010806.9154@netcom.com> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Feb07.010806.9154@netcom.com>, tsmirnov@netcom.com (Tomas Smirnov) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- === Andrei Sokolov === Dept of Electrical Engineering, Royal Institute of Technology, Stockholm "5 sigma is a discovery. 7 is a question." From rduarte@cam.ac.uk Thu Feb 09 15:16:06 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cam!rduarte From: rduarte@cam.ac.uk (Renata Duarte) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb09.151606.9656@cam.ac.uk> Date: Thu, 09 Feb 1995 15:16:06 GMT References: <1995Feb06.212506.7335@pacbell.net> <1995Feb07.010806.9154@netcom.com> <1995Feb07.233206.3818@kth.se> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Feb07.233206.3818@kth.se>, asokolov@kth.se (Andrei Sokolov) 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. If you are posting from AOL, please read RFC 1036 before posting again. -- Renata Duarte | rduarte@cam.ac.uk PGP Key fingerprint: C5C1 D860 DD71 33A5 "Keep the channels open." From dweber@stanford.edu Fri Feb 10 07:29:06 1995 Path: ashpoly!cascade!transat!ukc!fennimore!stanford!dweber From: dweber@stanford.edu (Dong-hyun Weber) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb10.072906.8111@stanford.edu> Date: Fri, 10 Feb 1995 07:29:06 GMT References: <1995Feb06.212506.7335@pacbell.net> <1995Feb07.010806.9154@netcom.com> <1995Feb07.233206.3818@kth.se> Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Feb07.233206.3818@kth.se>, asokolov@kth.se (Andrei Sokolov) 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. -- Dong-hyun Weber Practical Peripherals 14.4 @ 33,600 bps "A soul is not exclusive to biology."