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https://issues.apache.org/jira/browse/LUCENE-6878?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14987082#comment-14987082
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Michael McCandless commented on LUCENE-6878:
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+1
I know we are discussing how to benchmark this change but I don't think that's
needed before committing ... this is a good change ... it's only needed to
satisfy curiosity :)
> 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
> 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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