R devel - Jun 2008 - memory.size() for large memory usage (PR#11596)

This amusing behaviour is from R2.6.1 on WinXP Pro SP2 running with boot.ini
/3GB flag, exploring memory limits.

=20

When actual (object, not total) memory usage hits 2048 MB, memory.size starts
counting down again, but reports a negative amount, e.g. -2046.333. Is this an
intended (or unavoidable) feature?)

=20

Thanks,

=20

Rory Bowden

bowden at stats.ox.ac.uk

=20


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On Thu, 5 Jun 2008, bowden at stats.ox.ac.uk wrote:
> This amusing behaviour is from R2.6.1 on WinXP Pro SP2 running with
boot.in> i /3GB flag, exploring memory limits.
>
> =20
>
> When actual (object, not total) memory usage hits 2048 MB, memory.size
star> ts counting down again, but reports a negative amount, e.g. -2046.333.
Is t> his an intended (or unavoidable) feature?)
Not any more (it was a feature of the malloc used, but that has been 
updated and R hasn't followed.).

Will be changed for 2.7.1.
>
> =20
>
> Thanks,
>
> =20
>
> Rory Bowden
>
> bowden at stats.ox.ac.uk
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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