From tkuznetsov@inria.fr Sat Aug 17 12:39:05 1996 Path: ashpoly!cascade!mxgate!coyoacan!inria!tkuznetsov From: tkuznetsov@inria.fr (Takeshi Kuznetsov) Newsgroups: comp.sys.m68k Subject: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug17.123905.4100@inria.fr> Date: Sat, 17 Aug 1996 12:39:05 GMT Organization: INRIA Rocquencourt NNTP-Posting-Host: inria.fr X-Newsreader: Netscape 1.1N Lines: 10 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? -- Takeshi Kuznetsov Tape trading list upon request. SASE required for international mail. From brodriguez@titech.ac.jp Sat Aug 17 16:42:05 1996 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!brodriguez From: brodriguez@titech.ac.jp (Bastien Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug17.164205.8307@titech.ac.jp> Date: Sat, 17 Aug 1996 16:42:05 GMT References: <1996Aug17.123905.4100@inria.fr> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Aug17.123905.4100@inria.fr>, tkuznetsov@inria.fr (Takeshi Kuznetsov) 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. -- Bastien Rodríguez "Row 14. No joke." 486DX4/100 (FreeBSD 2.0.5) / FreeBSD 2.1 From pbrennan@illinois.edu Sat Aug 17 17:54:05 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!illinois!pbrennan From: pbrennan@illinois.edu (Pavel Brennan) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug17.175405.3420@illinois.edu> Date: Sat, 17 Aug 1996 17:54:05 GMT References: <1996Aug17.123905.4100@inria.fr> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Aug17.123905.4100@inria.fr>, tkuznetsov@inria.fr (Takeshi Kuznetsov) writes: > Benchmarking various C compilers and FPU math libraries on a Macintosh IIci (25 MHz 68030 + 68882). The 68040 on the Quadra is a monster -- the on-chip FPU executes FFT butterflies in less than 4 milliseconds. -- Pavel Brennan | pbrennan@illinois.edu PGP Key fingerprint: 887B EAC7 2ECD EBF3 "Keep the channels open." From mkowalski@unam.mx Sat Aug 17 23:43:05 1996 Path: ashpoly!cascade!mxgate!coyoacan!unam!mkowalski From: mkowalski@unam.mx (Matthias Kowalski) Newsgroups: comp.sys.m68k Subject: Re: Question: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1996Aug17.234305.3501@unam.mx> Date: Sat, 17 Aug 1996 23:43:05 GMT References: <1996Aug17.123905.4100@inria.fr> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Aug17.123905.4100@inria.fr>, tkuznetsov@inria.fr (Takeshi Kuznetsov) 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. -- === Matthias Kowalski === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "Measuring a record you own is listening, not piracy."