From teriksson@utexas.edu Tue Jun 28 01:43:06 1994 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!teriksson From: teriksson@utexas.edu (Tobias Eriksson) Newsgroups: comp.sys.m68k Subject: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jun28.014306.3825@utexas.edu> Date: Tue, 28 Jun 1994 01:43:06 GMT Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: Netscape 1.1N 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. 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? -- Tobias Eriksson "A soul is not exclusive to biology." Amiga 1200 (Blizzard 030/50) / TOS 4.04 From jmuller@delphi.com Wed Jun 29 09:22:06 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!delphi!jmuller From: jmuller@delphi.com (Jens Müller) Newsgroups: comp.sys.m68k Subject: Re: Benchmarking FFT routines on Mac IIci with MC68882 FPU under System 7.5 Message-ID: <1994Jun29.092206.1104@delphi.com> Date: Wed, 29 Jun 1994 09:22:06 GMT References: <1994Jun28.014306.3825@utexas.edu> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: Netscape 1.1N Lines: 9 In article <1994Jun28.014306.3825@utexas.edu>, teriksson@utexas.edu (Tobias Eriksson) 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. -- Jens Müller "There are 14 nodes and only 10 countries. Count again." Decstation 5000/200 / FreeBSD 2.1