From kpetrov@uu.net Wed Aug 02 10:31:37 1995 Path: ashpoly!cascade!transat!ukc!fennimore!uu!kpetrov From: kpetrov@uu.net (Katrin Petrov) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug02.103137.6994@uu.net> Date: Wed, 02 Aug 1995 10:31:37 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). 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? -- Katrin Petrov "Hold for relay." Mac IIci / 68882 FPU / SunOS 4.1.4 From doliveira@pacbell.net Thu Aug 03 03:35:37 1995 Path: ashpoly!cascade!mxgate!coyoacan!pacbell!doliveira From: doliveira@pacbell.net (Diego Oliveira) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug03.033537.5927@pacbell.net> Date: Thu, 03 Aug 1995 03:35:37 GMT References: <1995Aug02.103137.6994@uu.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug02.103137.6994@uu.net>, kpetrov@uu.net (Katrin Petrov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Diego Oliveira Tape trading list upon request. SASE required for international mail. From ssouza@kth.se Fri Aug 04 08:18:37 1995 Path: ashpoly!cascade!transat!sunet!nordrelay!kth!ssouza From: ssouza@kth.se (Seo-yeon Souza) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug04.081837.8682@kth.se> Date: Fri, 04 Aug 1995 08:18:37 GMT References: <1995Aug02.103137.6994@uu.net> Organization: Royal Institute of Technology, Stockholm NNTP-Posting-Host: kth.se X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Aug02.103137.6994@uu.net>, kpetrov@uu.net (Katrin Petrov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). > Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Seo-yeon Souza *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From jito@pacbell.net Sat Aug 05 09:05:37 1995 Path: ashpoly!cascade!bigsur!pacbell!jito From: jito@pacbell.net (Julien Ito) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug05.090537.3704@pacbell.net> Date: Sat, 05 Aug 1995 09:05:37 GMT References: <1995Aug02.103137.6994@uu.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Aug02.103137.6994@uu.net>, kpetrov@uu.net (Katrin Petrov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. -- Julien Ito "When every node is whole, the channel opens." Pentium 90 (OS/2 Warp) / System 7.5.1 From cnakamura@clari.net Sun Aug 06 00:56:37 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!clari!cnakamura From: cnakamura@clari.net (Callum Nakamura) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1995Aug06.005637.4428@clari.net> Date: Sun, 06 Aug 1995 00:56:37 GMT References: <1995Aug02.103137.6994@uu.net> <1995Aug05.090537.3704@pacbell.net> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1995Aug05.090537.3704@pacbell.net>, jito@pacbell.net (Julien Ito) 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. -- Callum Nakamura *PLONK* filter active for trolls. Acorn RiscPC 600 - NetBSD 1.0