[Rd] R valgrind question
Prof Brian Ripley
ripley at stats.ox.ac.uk
Wed Feb 6 07:39:22 CET 2008
On Wed, 6 Feb 2008, Daniel Oberski wrote:
>>> If run valgrind R then I get all sorts of warnings. I was wondering
>>> whether I should worry about them or not.
>> Don't worry about them. Those are benign issues with the system
>> libraries.. insofar as you trust those libraries, which you should... in
> Thanks for your (reassuring) answer. I can see that you are right,
> especially about the warnings at the beginning, all of which come from
> I think the memory leak warnings (which do come from libR.so) may have
> something to do with the apparent fact that valgrind stops before the
> main loop of R is over, so the memory is freed after that point. Or is
> this not true?
Various blocks of memory are not freed until the program is shut down, but
are in use up to that point so it is not a 'leak'. Most of the warnings
are not from R itself but from e.g. readline or X11, and all are tiny.
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 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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