[Python-Dev] Caching float(0.0)

Nick Maclaren nmm1 at cus.cam.ac.uk
Tue Oct 3 12:32:05 CEST 2006


=?iso-8859-1?Q?Kristj=E1n_V=2E_J=F3nsson?= <kristjan at ccpgames.com> wrote:
>
> The total count of floating point numbers allocated at this point is 985794.
> Without the reuse, they would be 1317145, so this is a saving of 25%, and
> of 5Mb.

And, if you optimised just 0.0, you would get 60% of that saving at
a small fraction of the cost and considerably greater generality.
It isn't clear whether the effort justifies doing more.


Regards,
Nick Maclaren,
University of Cambridge Computing Service,
New Museums Site, Pembroke Street, Cambridge CB2 3QH, England.
Email:  nmm1 at cam.ac.uk
Tel.:  +44 1223 334761    Fax:  +44 1223 334679


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