memory management

It appears that the intermediate data in functions is never GCed even
after the return from the function call.
R's RSS is 4 Gb (after a gc()) and

sum(unlist(lapply(lapply(ls(),get),object.size)))
[1] 1009496520

(less than 1 GB)

how do I figure out where the 3GB of uncollected garbage is hiding?

Sam Steingold (http://sds.podval.org/) on Ubuntu 11.10 (oneiric) X 11.0.11004000
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