From dvasiliev@inria.fr Mon Nov 04 23:30:31 1996 Path: ashpoly!cascade!mxgate!coyoacan!inria!dvasiliev From: dvasiliev@inria.fr (Dave Vasiliev) Newsgroups: comp.sys.m68k Subject: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov04.233031.6884@inria.fr> Date: Mon, 04 Nov 1996 23:30:31 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: Netscape 1.1N Lines: 11 Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? A 1024-point radix-2 FFT drops from 142 milliseconds under SANE to just 18 milliseconds using direct FPU instructions. Total execution time for a 20-minute audio track dropped from 48 minutes to 6.2 minutes. Anyone running this on a Quadra 840AV with the 68040? -- Dave Vasiliev "5 sigma is a discovery. 7 is a question." Mac IIci / 68882 FPU / System 7.5.1 From jpark@uni-hamburg.de Tue Nov 05 04:10:31 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!uni-hamburg!jpark From: jpark@uni-hamburg.de (Jen Park) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov05.041031.5491@uni-hamburg.de> Date: Tue, 05 Nov 1996 04:10:31 GMT References: <1996Nov04.233031.6884@inria.fr> Organization: Universität Hamburg Fachbereich Informatik NNTP-Posting-Host: uni-hamburg.de X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Nov04.233031.6884@inria.fr>, dvasiliev@inria.fr (Dave Vasiliev) writes: > Can a 1989 Mac IIci decode a 40-minute LP in reasonable time? The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Jen Park | jpark@uni-hamburg.de PGP Key fingerprint: D4F2 5EAE A3A1 321B "Keep the channels open." From ptanaka@panix.com Wed Nov 06 04:11:31 1996 Path: ashpoly!cascade!mxgate!coyoacan!panix!ptanaka From: ptanaka@panix.com (Pavel Tanaka) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov06.041131.8773@panix.com> Date: Wed, 06 Nov 1996 04:11:31 GMT References: <1996Nov04.233031.6884@inria.fr> <1996Nov05.041031.5491@uni-hamburg.de> Organization: Public Access Unix of New York NNTP-Posting-Host: panix.com X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov05.041031.5491@uni-hamburg.de>, jpark@uni-hamburg.de (Jen Park) 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. -- Pavel Tanaka "We don't sign stars. We build them." Acorn RiscPC 600 / FreeBSD 2.1 From aweber@purdue.edu Thu Nov 07 05:51:31 1996 Path: ashpoly!cascade!transat!ukc!fennimore!purdue!aweber From: aweber@purdue.edu (Anja Weber) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov07.055131.4352@purdue.edu> Date: Thu, 07 Nov 1996 05:51:31 GMT References: <1996Nov04.233031.6884@inria.fr> <1996Nov05.041031.5491@uni-hamburg.de> <1996Nov06.041131.8773@panix.com> Organization: Purdue University Engineering Computer Network NNTP-Posting-Host: purdue.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Nov06.041131.8773@panix.com>, ptanaka@panix.com (Pavel Tanaka) writes: > Mac users bragging about 6-minute render times while Unix workstations do it in 20 seconds. Classic Apple distortion field. The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- === Anja Weber === Dept of Electrical Engineering, Purdue University Engineering Computer Network "They will send a copy in my place." From bfischer@cam.ac.uk Thu Nov 07 23:02:31 1996 Path: ashpoly!cascade!mxgate!coyoacan!cam!bfischer From: bfischer@cam.ac.uk (Brian Fischer) Newsgroups: comp.sys.m68k Subject: Re: Data: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Nov07.230231.6383@cam.ac.uk> Date: Thu, 07 Nov 1996 23:02:31 GMT References: <1996Nov04.233031.6884@inria.fr> <1996Nov05.041031.5491@uni-hamburg.de> <1996Nov06.041131.8773@panix.com> Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Nov06.041131.8773@panix.com>, ptanaka@panix.com (Pavel Tanaka) 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. -- Brian Fischer "Measuring a record you own is listening, not piracy." Sun 3/60 (SunOS 4.1.1) / AmigaOS 3.1