Philippe Mouawad created COLLECTIONS-557:
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Summary: LRUMap memory usage vs size
Key: COLLECTIONS-557
URL: https://issues.apache.org/jira/browse/COLLECTIONS-557
Project: Commons Collections
Issue Type: Improvement
Components: Map
Affects Versions: 3.2.1
Reporter: Philippe Mouawad
Fix For: 3.2.2
Hello,
Currently LRUMap uses maxSize parameter to configure its maxSize.
This is not great for its memory usage.
For example I have a use case where I can't really guess the target maxSize of
LRUMap so I have put a big number .
In reality I end up having 380 elements but LRUMap uses 33 Mb of memory because
it allocates (as capacity) LOAD_FACTORxsupposed max size.
It would be nice to have the possibility to set maxSize apart making it
unrelated to capacity.
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