64 bit memory usage

[Rob Randall]

Basically the process runs at around 1% and it never seems to grow in size
again.
When running the C++ with python app the process slows when a new 'page' is
required but then goes back to 'full' speed. It does this until basically
all the virtual memory is used.

I have had memory exceptions when running the same sort of stuff on 32 bit,
but never 64 bit.

On 9 December 2010 16:54, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Wed, 8 Dec 2010 14:44:30 +0000
> Rob Randall <rob.randall2 at gmail.com> wrote:
> > I am trying to understand how much memory is available to a 64 bit python
> > process running under Windows XP 64 bit.
> >
> > When I run tests just creating a series of large dictionaries containing
> > string keys and float values I do not seem to be able to grow the process
> > beyond the amount of RAM present.
> >
> > For example, on a box with 2GB RAM and 3 GB pagefile the process stalls
> at
> > around 2GB.
> >
> > On another machine with 16GB RAM and 24GB pagefile the process stalls at
> > 16GB.
>
> How is it surprising? When you go past the available RAM, your process
> starts swapping and everything becomes incredibly slower.
>
> Regards
>
> Antoine.
>
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>
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