From tlumley@u.washington.edu  Mon Oct 14 15:34:24 2002
From: tlumley@u.washington.edu (Thomas Lumley)
Date: Mon, 14 Oct 2002 07:34:24 -0700 (PDT)
Subject: possible memory leak in 1.6 (PR#2160)
In-Reply-To: <200210141401.QAA11994@pubhealth.ku.dk>
Message-ID: <Pine.A41.4.44.0210140732190.43878-100000@homer16.u.washington.edu>

On Mon, 14 Oct 2002 socher@stat.uni-muenchen.de wrote:

> Hi,
>
> I noticed the following problem with 1.6.0 (which was not present in 1.5.1):
>
> I work with very large datasets and encountered a problem with memory
> allocation,
> (probably a memory leak).  I wrote a programm with a loop.  In this loop in
> each
> iteration I create a  very large matrix and assign it to a variable which
> is the SAME for all the iterations.  So at each round the new matrix overwrites
> the old  matrix.  In 1.5.1  the garbage collector seems to clean up the old
> unused memory.  Unfortunately, in 1.6.0 with each round the memory used by R
> increases until the R process is killed.

Yes, it's a bug (though it isn't the matrix that leaks).  It's
probably been fixed.

You could download the current `patched' version and try that.

	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley@u.washington.edu	University of Washington, Seattle

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possible memory leak in 1.6 (PR#2160)
Thomas Lumley