[Python-Dev] More compact dictionaries with faster iteration

Mark Shannon mark at hotpy.org
Mon Dec 10 10:06:51 CET 2012

On 10/12/12 01:44, Raymond Hettinger wrote:
> The current memory layout for dictionaries is
> unnecessarily inefficient.  It has a sparse table of
> 24-byte entries containing the hash value, key pointer,
> and value pointer.
> Instead, the 24-byte entries should be stored in a
> dense table referenced by a sparse table of indices.

What minimum size and resizing factor do you propose for the entries array?


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