[R] sys.time question - how to improve R performance

From: Jiří Voller <jirivoller_at_gmail.com>
Date: Sat, 26 Apr 2008 14:51:34 +0200


Dear R-users,
I run my program a difference between sys.times is as follows:  user system elapsed
60167.53 2848.75 63278.93

I am quite puzzled how it may happen that system time is so much shorter than user time, I have 2 core computer most of the time (90%) I was not doing anything else with the computer. What could be the reason of such a difference? I switched off file indexing and all other resident programs...... My program include writing output into a file - could that be the reason?

Thanks for your replies.

-- 

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Jiří Voller Laboratory of Growth Regulators Palacký University & Institute of Experimental Botany AS CR Šlechtitelů 11, 783 71 Olomouc Czech Republic http://rustreg.upol.cz landline: +420-585-634-855 cell: +420-737-520-506 fax: +420-585-634-870
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Received on Sat 26 Apr 2008 - 13:33:28 GMT

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