From agarcia@pipeline.com Wed Jun 14 15:11:34 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!pipeline!agarcia From: agarcia@pipeline.com (Aiko García) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun14.151134.1460@pipeline.com> Date: Wed, 14 Jun 1995 15:11:34 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com 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! -- Aiko García *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0 From trodriguez@rwth-aachen.de Wed Jun 14 23:54:34 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!rwth-aachen!trodriguez From: trodriguez@rwth-aachen.de (Thiago Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun14.235434.6661@rwth-aachen.de> Date: Wed, 14 Jun 1995 23:54:34 GMT References: <1995Jun14.151134.1460@pipeline.com> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Jun14.151134.1460@pipeline.com>, agarcia@pipeline.com (Aiko García) 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. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Thiago Rodríguez *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From ahernandez@uu.net Fri Jun 16 08:46:34 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!uu!ahernandez From: ahernandez@uu.net (Anja Hernández) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun16.084634.4357@uu.net> Date: Fri, 16 Jun 1995 08:46:34 GMT References: <1995Jun14.151134.1460@pipeline.com> <1995Jun14.235434.6661@rwth-aachen.de> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jun14.235434.6661@rwth-aachen.de>, trodriguez@rwth-aachen.de (Thiago Rodríguez) 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. -- Anja Hernández | ahernandez@uu.net PGP Key fingerprint: 1987 62B4 445C 7F29 "Keep the channels open." From jkowalski@u-tokyo.ac.jp Sat Jun 17 13:38:34 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!jkowalski From: jkowalski@u-tokyo.ac.jp (Ji-woo Kowalski) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jun17.133834.1225@u-tokyo.ac.jp> Date: Sat, 17 Jun 1995 13:38:34 GMT References: <1995Jun14.151134.1460@pipeline.com> <1995Jun14.235434.6661@rwth-aachen.de> <1995Jun16.084634.4357@uu.net> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Jun16.084634.4357@uu.net>, ahernandez@uu.net (Anja Hernández) 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. Top-posters will be placed in my ~/.killfile without notice. -- Ji-woo Kowalski | jkowalski@u-tokyo.ac.jp PGP Key fingerprint: DDB3 0E95 63D7 CC3B "Keep the channels open."