Memory footpring of python objects
nick at craig-wood.com
Thu Apr 23 13:30:05 CEST 2009
BlueBird <phil at freehackers.org> wrote:
> I have a program that manages several thousands instances of one
> object. To reduce memory
> consumption, I want of course that specific object to have the
> smallest memory footpring possible.
> I have a few ideas that I want to experiment with, like using
> __slots__, using a tuple or using a dict. My
> question is: how do I know the memory footprint of a given python
> object ? I could not find any
> builtin functions for this in the documentation.
I managed to 1/3 the memory requirement of our program by using
__slots__ on the most common class (several hundred thousand
When doing these optimisations I ran a repeatable script and measured
the total memory usage using the OS tools (top in my case).
Nick Craig-Wood <nick at craig-wood.com> -- http://www.craig-wood.com/nick
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