[R] memory management

[Sam Steingold]

My basic worry is that the GC does not work properly,
i.e., the unreachable data is never collected.

> * Bert Gunter <thagre.oregba at trar.pbz> [2012-02-27 14:35:14 -0800]:
>
> This appears to be the sort of query that (with apologies to other R
> gurus) only Brian Ripley or Luke Tierney could figure out. R generally
> passes by value into function calls (but not *always*), so often
> multiple copies of objects are made during the course of calls. I
> would speculate that this is what might be going on below -- maybe
> even that's what you meant.
>
> Just a guess on my part, of course, so treat accordingly.
>
> -- Bert
>
> On Mon, Feb 27, 2012 at 1:03 PM, Sam Steingold <sds at gnu.org> wrote:
>> 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?

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