Message-ID: <Pine.GSO.4.21.0101101105000.6757-100000@atlas.biostat.washington.edu>
Date: 2001-01-10T19:06:19Z
From: Thomas Lumley
Subject: R and memory
In-Reply-To: <3A5C7FC4.429E693C@info.univ-angers.fr>
On Wed, 10 Jan 2001, Meriema Belaidouni wrote:
> Hello
> I have some problems to read large data file with R.
> can someone tell me why running
> R --visze=30M --nsize=2000k
> uses in fact 63M?
It potentially uses even more than that. You have asked for 30Mb of vector
heap and 2 million cons cells. Each cons cell takes 32 bytes (I think), so
this would be 90Mb plus whatever the R program itself uses.
-thomas
Thomas Lumley Asst. Professor, Biostatistics
tlumley at u.washington.edu University of Washington, Seattle
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