[R-SIG-Mac] timer (for those who like that sort of thing)

Jan de Leeuw deleeuw at stat.ucla.edu
Thu Sep 7 20:54:44 CEST 2006


This gives timer.R, as well as results for

-- a quad G5 with 4GB RAM and R-devel compiled with vecLib and gcc-3.x
-- a quad MacPro with 5GB RAM and R-devel compiled with vecLib and  
gcc-4.2.0

You'll see the MacPro/G5 time ratio is about 0.60, almost twice
as fast, for the hilbert and sort tasks. For loess the MacPro is  
slower (!!),
but that probably is a function of the two different versions of vecLib.

I'll try the Intel compilers and the appropriate ATLAS (or Intel MKL/IPP
frameworks) later.

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===
Jan de Leeuw; Distinguished Professor and Chair, UCLA Department of  
Statistics;
Editor: Journal of Multivariate Analysis, Journal of Statistical  
Software
US mail: 8125 Math Sciences Bldg, Box 951554, Los Angeles, CA 90095-1554
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