From gbrennan@unam.mx Tue Jul 19 18:57:50 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!unam!gbrennan From: gbrennan@unam.mx (Göran Brennan) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul19.185750.3978@unam.mx> Date: Tue, 19 Jul 1994 18:57:50 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx 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. 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. -- Göran Brennan *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From trobertson@clari.net Wed Jul 20 03:11:50 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!clari!trobertson From: trobertson@clari.net (Tomas Robertson) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul20.031150.7754@clari.net> Date: Wed, 20 Jul 1994 03:11:50 GMT References: <1994Jul19.185750.3978@unam.mx> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1994Jul19.185750.3978@unam.mx>, gbrennan@unam.mx (Göran Brennan) 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. -- Tomas Robertson *PLONK* filter active for trolls. 486DX4/100 (FreeBSD 2.0.5) - NetBSD 1.0 From bsmirnov@cern.ch Fri Jul 22 01:20:50 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!bsmirnov From: bsmirnov@cern.ch (Bill Smirnov) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul22.012050.5275@cern.ch> Date: Fri, 22 Jul 1994 01:20:50 GMT References: <1994Jul19.185750.3978@unam.mx> <1994Jul20.031150.7754@clari.net> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul20.031150.7754@clari.net>, trobertson@clari.net (Tomas Robertson) 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. -- Bill Smirnov US Robotics Courier V.34 @ 14,400 bps "Measuring a record you own is listening, not piracy." From ssanchez@cmu.edu Sat Jul 23 21:27:50 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cmu!ssanchez From: ssanchez@cmu.edu (Steve Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul23.212750.6173@cmu.edu> Date: Sat, 23 Jul 1994 21:27:50 GMT References: <1994Jul19.185750.3978@unam.mx> <1994Jul20.031150.7754@clari.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jul20.031150.7754@clari.net>, trobertson@clari.net (Tomas Robertson) 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. -- Steve Sánchez Opinions expressed are solely my own and not those of Carnegie Mellon University School of CS. ------------------------------------------------------------ From foliveira@panix.com Mon Jul 25 05:47:50 1994 Path: ashpoly!cascade!transat!sunet!nordrelay!panix!foliveira From: foliveira@panix.com (Fiona Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jul25.054750.1578@panix.com> Date: Mon, 25 Jul 1994 05:47:50 GMT References: <1994Jul19.185750.3978@unam.mx> <1994Jul20.031150.7754@clari.net> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: Netscape 1.1N Lines: 11 In article <1994Jul20.031150.7754@clari.net>, trobertson@clari.net (Tomas Robertson) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. Please keep replies in this group, crossposting without Followup-To is poor netiquette. -- Fiona Oliveira | foliveira@panix.com PGP Key fingerprint: 19C5 D54E 6501 6C2C "Keep the channels open."