[R] R memory requirements

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Jan 4 12:19:58 CET 2000

> From: "Jens Oehlschlägel-Akiyoshi" <jens.oehlschlaegel-akiyoshi at mdfactory.de>
> Subject: [R] R memory requirements
> Date: Tue, 4 Jan 2000 11:17:16 +0100
> can anyone explain how to find out the maximum memory a certain function
> call has needed at any time during execution?

As far as I understand it, that's not really relevant, as garbage
collection is only invoked when needed. (In other words, a call may use
far more memory than it needs if the memory is there.)

Using gcinfo(TRUE) will tell you how much gets used when garbage
collection is invoked and so may give a rough idea, as the answer is
between the largest value that gives and the maximum available.


Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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