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https://issues.apache.org/jira/browse/LUCENE-6878?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adrien Grand resolved LUCENE-6878.
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Resolution: Fixed
Fix Version/s: 5.4
6.0
bq. I know we are discussing how to benchmark this change but I don't think
that's needed before committing
Agreed, I just committed the change.
Daniel: I am marking the issue resolved since it was committed, but feel free
to comment on it about your findings about potential performance improvements.
> TopDocs.merge should use updateTop instead of pop / add
> -------------------------------------------------------
>
> Key: LUCENE-6878
> URL: https://issues.apache.org/jira/browse/LUCENE-6878
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: Trunk
> Reporter: Daniel Jelinski
> Assignee: Adrien Grand
> Priority: Trivial
> Fix For: 6.0, 5.4
>
> Attachments: LUCENE-6878.patch
>
>
> The function TopDocs.merge uses PriorityQueue in a pattern: pop, update value
> (ref.hitIndex++), add. JavaDocs for PriorityQueue.updateTop say that using
> this function instead should be at least twice as fast.
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