[Python-Dev] Reducing memory overhead for dictionaries by removing me_hash (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Sun Apr 23 23:56:40 CEST 2006

Kirat Singh wrote:

The reason I looked into this to begin with was that my code used up a bunch of memory which was traceable to lots of little objects with instance dicts, so it seemed that if instancedicts took less memory I wouldn't have to go and add slots to a bunch of my classes, or rewrite things as tuples/lists, etc.

Ah. In that case, I would be curious if tuning PyDict_MINSIZE could help. If you have many objects of the same type, am I right assuming they all have the same number of dictionary keys? If so, what is the dictionary size? Do they use ma_smalltable, or do they have an extra ma_table?

Regards, Martin

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