2008/11/18 kenny lu
Here is a comparison of memory usage
Map : 345 MB IntMap : 146 MB Trie : 282 MB Python : 94 MB
Here is a comparison of execution time (on an intel dual core 2.0G)
Map: 26 sec IntMap: 9 sec Trie: 12 sec Python: 2.24 sec
The above number shows that my implementations of python style dictionary are space/time in-efficient as compared to python.
Can some one point out what's wrong with my implementations?
This isn't really a fair comparison. Map, IntMap, and Trie are
persistent data structures, and Python dictionaries are ephemeral.
(That is, when you "add" a key to a Map, you actually create a new one
that shares structure with the old one, and both can be used in
subsequent code. In Python, you would have to copy the dictionary.)
--
Dave Menendez