From dlee@pacbell.net Tue Feb 28 01:44:35 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!pacbell!dlee From: dlee@pacbell.net (Dmitri Lee) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb28.014435.8611@pacbell.net> Date: Tue, 28 Feb 1995 01:44:35 GMT Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 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. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Make sure you install the 32-bit Enabler on older IIci machines running System 7.1! -- Dmitri Lee *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From jkowalski@tum.de Tue Feb 28 18:15:35 1995 Path: ashpoly!cascade!bigsur!tum!jkowalski From: jkowalski@tum.de (Ji-woo Kowalski) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Feb28.181535.1877@tum.de> Date: Tue, 28 Feb 1995 18:15:35 GMT References: <1995Feb28.014435.8611@pacbell.net> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Feb28.014435.8611@pacbell.net>, dlee@pacbell.net (Dmitri Lee) 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. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Ji-woo Kowalski | jkowalski@tum.de PGP Key fingerprint: 89AB C30B 7DFB 79D4 "Keep the channels open." From mlee@demon.co.uk Wed Mar 01 15:50:35 1995 Path: ashpoly!cascade!bigsur!demon!mlee From: mlee@demon.co.uk (Morag Lee) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar01.155035.6216@demon.co.uk> Date: Wed, 01 Mar 1995 15:50:35 GMT References: <1995Feb28.014435.8611@pacbell.net> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1995Feb28.014435.8611@pacbell.net>, dlee@pacbell.net (Dmitri Lee) writes: > 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. 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. -- Morag Lee *PLONK* filter active for trolls. Pentium 90 (OS/2 Warp) - NetBSD 1.0 From sokonkwo@cam.ac.uk Thu Mar 02 09:38:35 1995 Path: ashpoly!cascade!mxgate!coyoacan!cam!sokonkwo From: sokonkwo@cam.ac.uk (Steve Okonkwo) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar02.093835.5940@cam.ac.uk> Date: Thu, 02 Mar 1995 09:38:35 GMT References: <1995Feb28.014435.8611@pacbell.net> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1995Feb28.014435.8611@pacbell.net>, dlee@pacbell.net (Dmitri Lee) 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. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Steve Okonkwo Opinions expressed are solely my own and not those of University of Cambridge Computer Laboratory. ------------------------------------------------------------ From ojohansson@berkeley.edu Sat Mar 04 00:57:35 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!berkeley!ojohansson From: ojohansson@berkeley.edu (Olga Johansson) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Mar04.005735.7440@berkeley.edu> Date: Sat, 04 Mar 1995 00:57:35 GMT References: <1995Feb28.014435.8611@pacbell.net> <1995Mar02.093835.5940@cam.ac.uk> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: Netscape 1.1N Lines: 12 In article <1995Mar02.093835.5940@cam.ac.uk>, sokonkwo@cam.ac.uk (Steve Okonkwo) writes: > The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. > My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Top-posters will be placed in my ~/.killfile without notice. -- Olga Johansson Opinions expressed are solely my own and not those of UC Berkeley Department of EECS. ------------------------------------------------------------