IdentityHashMap in ElementCostInDataStructures wiki page

[GoogleCodeExporter]

First of all: thanks for creating this project. It looks great, and I can't 
wait to play a with it.

I was very interested by the 
http://code.google.com/p/memory-measurer/wiki/ElementCostInDataStructures wiki 
page. It lets the visitor immediately get interesting insights into data 
structures, without having to run the measurements himself.

It would be nice if IdentityHashMap were represented on this page: it is 
supposedly more memory-efficient than HashMap, and I was interested in that. Of 
course, I'll run the test myself when I go home, but I think this would be a 
nice addition.

I would also be interested in IdentityHashSet (from Guava r08's 
Sets.newIdentityHashSet()), but it's really a wrapped IdentityHashmap anyway.

Thanks again

Original issue reported on code.google.com by nev...@gmail.com on 3 Feb 2011 at 9:36