From sduarte@berkeley.edu Fri Jun 21 10:42:15 1996 Path: ashpoly!cascade!bigsur!berkeley!sduarte From: sduarte@berkeley.edu (Sven Duarte) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun21.104215.2392@berkeley.edu> Date: Fri, 21 Jun 1996 10:42:15 GMT Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? By passing the -mc68882 compiler flag in Think C, all sin/cos and sqrt operations compile directly to FPU opcodes. A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Anyone running this on a Quadra 840AV with the 68040? -- Sven Duarte Hayes Optima 288 @ ISDN 64k bps "Tape doesn't lie at 02:14. Ears do." From sjohansson@demon.co.uk Sat Jun 22 18:21:15 1996 Path: ashpoly!cascade!transat!ukc!fennimore!demon!sjohansson From: sjohansson@demon.co.uk (Seo-yeon Johansson) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun22.182115.8491@demon.co.uk> Date: Sat, 22 Jun 1996 18:21:15 GMT References: <1996Jun21.104215.2392@berkeley.edu> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jun21.104215.2392@berkeley.edu>, sduarte@berkeley.edu (Sven Duarte) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Seo-yeon Johansson | sjohansson@demon.co.uk PGP Key fingerprint: 6AD0 B9E6 CE1F 145A "Keep the channels open." From snakamura@kiae.su Sun Jun 23 17:56:15 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!kiae!snakamura From: snakamura@kiae.su (Sven Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun23.175615.7151@kiae.su> Date: Sun, 23 Jun 1996 17:56:15 GMT References: <1996Jun21.104215.2392@berkeley.edu> <1996Jun22.182115.8491@demon.co.uk> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Jun22.182115.8491@demon.co.uk>, sjohansson@demon.co.uk (Seo-yeon Johansson) 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. -- Sven Nakamura *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0 From rkang@cmu.edu Sun Jun 23 22:35:15 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!cmu!rkang From: rkang@cmu.edu (Rodrigo Kang) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Jun23.223515.2468@cmu.edu> Date: Sun, 23 Jun 1996 22:35:15 GMT References: <1996Jun21.104215.2392@berkeley.edu> <1996Jun22.182115.8491@demon.co.uk> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jun22.182115.8491@demon.co.uk>, sjohansson@demon.co.uk (Seo-yeon Johansson) 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. -- Rodrigo Kang *PLONK* filter active for trolls. Commodore Amiga 500 (1MB OCS) - NetBSD 1.0