[Baypiggies] Discussion for newbies/beginner night talks - test results

Anna Ravenscroft annaraven at gmail.com
Fri Feb 16 00:30:59 CET 2007

On 2/15/07, Dennis Reinhardt <DennisR at dair.com> wrote:
> At 02:21 PM 2/15/2007, Chad Netzer wrote:
> >Dennis, you said in your example, "The final time.sleep(2000) is to
> >allow time for garbage collection to reduce memory usage."  However,
> >that certainly will have no effect with CPython, nor do operating
> >system memory allocators work that way.
> I read at http://docs.python.org/lib/module-gc.html where it says
>          "tune the collection frequency"
> and other statements on this page to mean that the garbage collector makes
> periodic sweeps of object references.  I do not see what the timing is.  I
> did provide for a window in this code so that if such a sweep resulted in
> lowering memory requirements, I had provided for time to go by.
> Informal testing on a large system (not this toy example) where I set the
> gc collection interval to every minute did not materially affect the
> results.  In this toy example, I had experimented with explicit del()
> calls
> and took them out of the code as they made no improvement.
> Dennis
>   ---------------------------------
> | Dennis    | DennisR at dair.com    |
> | Reinhardt | http://www.dair.com |
>   ---------------------------------
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May I suggest that, given the variety of "expert" responses, this might not
be an appropriate topic for newbies/beginners night? It's a great topic for
discussion in general...

It is fate, but call it Italy if it pleases you, Vicar!
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