From nchoi@uni-hamburg.de Wed May 01 19:51:21 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uni-hamburg!nchoi From: nchoi@uni-hamburg.de (Nadia Choi) Newsgroups: comp.sys.m68k Subject: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May01.195121.1500@uni-hamburg.de> Date: Wed, 01 May 1996 19:51:21 GMT Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N 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. Anyone running this on a Quadra 840AV with the 68040? -- Nadia Choi *PLONK* filter active for trolls. Atari Falcon 030 - NetBSD 1.0 From inovak@uni-hamburg.de Thu May 02 04:53:21 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!uni-hamburg!inovak From: inovak@uni-hamburg.de (Ines Novak) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May02.045321.3942@uni-hamburg.de> Date: Thu, 02 May 1996 04:53:21 GMT References: <1996May01.195121.1500@uni-hamburg.de> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: Netscape 1.1N Lines: 9 In article <1996May01.195121.1500@uni-hamburg.de>, nchoi@uni-hamburg.de (Nadia Choi) writes: > Compiling stardust.c with Think C 6.0 vs MPW C with direct 68882 inlining. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Ines Novak | inovak@uni-hamburg.de PGP Key fingerprint: FED4 3328 5419 14B6 "Keep the channels open." From breyes@berkeley.edu Thu May 02 11:19:21 1996 Path: ashpoly!cascade!brgate!saturno!berkeley!breyes From: breyes@berkeley.edu (Brian Reyes) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May02.111921.5906@berkeley.edu> Date: Thu, 02 May 1996 11:19:21 GMT References: <1996May01.195121.1500@uni-hamburg.de> <1996May02.045321.3942@uni-hamburg.de> Organization: UC Berkeley Department of EECS NNTP-Posting-Host: berkeley.edu X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996May02.045321.3942@uni-hamburg.de>, inovak@uni-hamburg.de (Ines Novak) 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. -- Brian Reyes Zyxel U-1496E @ 28,800 bps "They will send a copy in my place." From ssokolov@pacbell.net Fri May 03 05:27:21 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!ssokolov From: ssokolov@pacbell.net (Sven Sokolov) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May03.052721.8713@pacbell.net> Date: Fri, 03 May 1996 05:27:21 GMT References: <1996May01.195121.1500@uni-hamburg.de> <1996May02.045321.3942@uni-hamburg.de> <1996May02.111921.5906@berkeley.edu> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1996May02.111921.5906@berkeley.edu>, breyes@berkeley.edu (Brian Reyes) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Sven Sokolov *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From ltanaka@u-tokyo.ac.jp Sat May 04 08:17:21 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!u-tokyo!ltanaka From: ltanaka@u-tokyo.ac.jp (Liam Tanaka) Newsgroups: comp.sys.m68k Subject: Re: [SPECULATION] Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996May04.081721.9453@u-tokyo.ac.jp> Date: Sat, 04 May 1996 08:17:21 GMT References: <1996May01.195121.1500@uni-hamburg.de> <1996May02.045321.3942@uni-hamburg.de> <1996May02.111921.5906@berkeley.edu> <1996May03.052721.8713@pacbell.net> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996May03.052721.8713@pacbell.net>, ssokolov@pacbell.net (Sven Sokolov) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. > Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Liam Tanaka Opinions expressed are solely my own and not those of University of Tokyo Department of Information Science. ------------------------------------------------------------