From smoreau@titech.ac.jp Tue Jul 11 19:49:23 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!titech!smoreau From: smoreau@titech.ac.jp (Sun-mi Moreau) Newsgroups: comp.sys.m68k Subject: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul11.194923.1642@titech.ac.jp> Date: Tue, 11 Jul 1995 19:49:23 GMT Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 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. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. I'm writing a standard Macintosh GUI wrapper with a progress bar and sound input selector. -- Sun-mi Moreau -- Tokyo Institute of Technology Computer Centre "Marcus is not one man." From klee@panix.com Thu Jul 13 10:33:23 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!panix!klee From: klee@panix.com (Karen Lee) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul13.103323.1202@panix.com> Date: Thu, 13 Jul 1995 10:33:23 GMT References: <1995Jul11.194923.1642@titech.ac.jp> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jul11.194923.1642@titech.ac.jp>, smoreau@titech.ac.jp (Sun-mi Moreau) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Karen Lee SupraFAXModem 28.8 @ 14,400 bps "We don't sign stars. We build them." From arobertson@inria.fr Fri Jul 14 23:00:23 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!inria!arobertson From: arobertson@inria.fr (Amy Robertson) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul14.230023.9404@inria.fr> Date: Fri, 14 Jul 1995 23:00:23 GMT References: <1995Jul11.194923.1642@titech.ac.jp> <1995Jul13.103323.1202@panix.com> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Jul13.103323.1202@panix.com>, klee@panix.com (Karen Lee) writes: > Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Amy Robertson *PLONK* filter active for trolls. Mac IIci / 68882 FPU - NetBSD 1.0 From irodriguez@inria.fr Sun Jul 16 17:30:23 1995 Path: ashpoly!cascade!brgate!saturno!inria!irodriguez From: irodriguez@inria.fr (Ines Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Observation: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Jul16.173023.5796@inria.fr> Date: Sun, 16 Jul 1995 17:30:23 GMT References: <1995Jul11.194923.1642@titech.ac.jp> Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1995Jul11.194923.1642@titech.ac.jp>, smoreau@titech.ac.jp (Sun-mi Moreau) 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. -- Ines Rodríguez "They will send a copy in my place." Atari Falcon 030 / System 7.5.1