Robert Muir created LUCENE-5798:
-----------------------------------
Summary: minor optimizations to MultiDocs(AndPositions)Enum.reset()
Key: LUCENE-5798
URL: https://issues.apache.org/jira/browse/LUCENE-5798
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
Attachments: LUCENE-5798.patch
This method is called by merging for each term, potentially many times, but
only returning a few docs for each invocation (e.g. imagine high cardinality
fields, unique id fields, normal zipf distribution on full text).
Today we create a new EnumWithSlice[] array and new EnumWithSlice entry for
each term, but this creates a fair amount of unnecessary garbage: instead we
can just make this array up-front as size subReaderCount and reuse it.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
