Adrien Grand created LUCENE-6118:
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Summary: Improve efficiency of the history structure for filter
caching
Key: LUCENE-6118
URL: https://issues.apache.org/jira/browse/LUCENE-6118
Project: Lucene - Core
Issue Type: Improvement
Reporter: Adrien Grand
Assignee: Adrien Grand
Priority: Minor
The filter caching uses a ring buffer that tracks frequencies of the hashcodes
of the most-recently used filters. However it is based on an
ArrayDeque<Integer> and a HashMap<Integer> which keep on (un)wrapping ints.
Since the data-structure is very simple, we could try to do something better...
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