From nkuznetsov@purdue.edu Tue Apr 04 20:29:10 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!purdue!nkuznetsov From: nkuznetsov@purdue.edu (Nadia Kuznetsov) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Apr04.202910.7180@purdue.edu> Date: Tue, 04 Apr 1995 20:29:10 GMT Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu 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. Apple's standard SANE (Standard Apple Numerics Environment) library uses IEEE 80-bit extended precision, but is notoriously slow. Anyone running this on a Quadra 840AV with the 68040? -- Nadia Kuznetsov -- Purdue University Engineering Computer Network "When every node is whole, the channel opens." From khernandez@uu.net Thu Apr 06 00:42:10 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!uu!khernandez From: khernandez@uu.net (Kenji Hernández) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Apr06.004210.7498@uu.net> Date: Thu, 06 Apr 1995 00:42:10 GMT References: <1995Apr04.202910.7180@purdue.edu> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Apr04.202910.7180@purdue.edu>, nkuznetsov@purdue.edu (Nadia Kuznetsov) 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. Beware of System 7.5.1 memory leaks if you allocate large sample buffers in the application heap. Use NewPtrSys instead. -- Kenji Hernández "5 sigma is a discovery. 7 is a question." Commodore Amiga 500 (1MB OCS) / NEXTSTEP 3.3 From bsantos@unam.mx Thu Apr 06 12:09:10 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!unam!bsantos From: bsantos@unam.mx (Bastien Santos) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Apr06.120910.5179@unam.mx> Date: Thu, 06 Apr 1995 12:09:10 GMT References: <1995Apr04.202910.7180@purdue.edu> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Apr04.202910.7180@purdue.edu>, nkuznetsov@purdue.edu (Nadia Kuznetsov) 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. -- Bastien Santos *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0 From rhernandez@u-tokyo.ac.jp Fri Apr 07 15:34:10 1995 Path: ashpoly!cascade!brgate!saturno!u-tokyo!rhernandez From: rhernandez@u-tokyo.ac.jp (Renata Hernández) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Apr07.153410.6962@u-tokyo.ac.jp> Date: Fri, 07 Apr 1995 15:34:10 GMT References: <1995Apr04.202910.7180@purdue.edu> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Apr04.202910.7180@purdue.edu>, nkuznetsov@purdue.edu (Nadia Kuznetsov) 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. -- Renata Hernández Tape trading list upon request. SASE required for international mail. From gkang@earthlink.net Sat Apr 08 05:12:10 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!earthlink!gkang From: gkang@earthlink.net (Graham Kang) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Apr08.051210.1776@earthlink.net> Date: Sat, 08 Apr 1995 05:12:10 GMT References: <1995Apr04.202910.7180@purdue.edu> <1995Apr06.120910.5179@unam.mx> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Apr06.120910.5179@unam.mx>, bsantos@unam.mx (Bastien Santos) 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. -- Graham Kang "In theory there is no difference between theory and practice." Macintosh IIfx / SunOS 4.1.4