From shernandez@demon.co.uk Sat May 13 17:13:27 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!demon!shernandez From: shernandez@demon.co.uk (Steve Hernández) Newsgroups: comp.sys.m68k Subject: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May13.171327.2140@demon.co.uk> Date: Sat, 13 May 1995 17:13:27 GMT Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: Netscape 1.1N Lines: 11 Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. 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! -- Steve Hernández "Extraordinary claims require extraordinary spectra." Atari TT030 / TOS 4.04 From klopez@titech.ac.jp Mon May 15 09:57:27 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!klopez From: klopez@titech.ac.jp (Kirsty López) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May15.095727.2503@titech.ac.jp> Date: Mon, 15 May 1995 09:57:27 GMT References: <1995May13.171327.2140@demon.co.uk> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995May13.171327.2140@demon.co.uk>, shernandez@demon.co.uk (Steve Hernández) 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. -- Kirsty López SupraFAXModem 28.8 @ 14,400 bps "A soul is not exclusive to biology." From mrodriguez@tum.de Mon May 15 14:10:27 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!tum!mrodriguez From: mrodriguez@tum.de (Marta Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May15.141027.6801@tum.de> Date: Mon, 15 May 1995 14:10:27 GMT References: <1995May13.171327.2140@demon.co.uk> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995May13.171327.2140@demon.co.uk>, shernandez@demon.co.uk (Steve Hernández) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. > By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- Marta Rodríguez -- Technische Universität München "Hardware is temporary. The signal survives." From drodriguez@cern.ch Wed May 17 05:05:27 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cern!drodriguez From: drodriguez@cern.ch (Dmitri Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: [INFO] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995May17.050527.9046@cern.ch> Date: Wed, 17 May 1995 05:05:27 GMT References: <1995May13.171327.2140@demon.co.uk> <1995May15.095727.2503@titech.ac.jp> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 9 In article <1995May15.095727.2503@titech.ac.jp>, klopez@titech.ac.jp (Kirsty López) 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. -- Dmitri Rodríguez Opinions expressed are solely my own and not those of European Laboratory for Particle Physics, Geneva. ------------------------------------------------------------