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https://issues.apache.org/jira/browse/LUCENE-7103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir resolved LUCENE-7103.
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Resolution: Fixed
Fix Version/s: 6.1
master
> further optimize LatLonPoint.newDistanceSort
> --------------------------------------------
>
> Key: LUCENE-7103
> URL: https://issues.apache.org/jira/browse/LUCENE-7103
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Fix For: master, 6.1
>
> Attachments: LUCENE-7103.patch
>
>
> This comparator creates bounding boxes to avoid calling haversin(), so its no
> longer a hotspot for most use cases.
> But in the worst case, it could still get called many times. This could be
> because the user had a massive top N value, or because the incoming data is
> sorted or mostly sorted by decreasing distance, etc.
> We can optimize the worst case by not invoking a full haversin, just using
> something that is rank-equivalent.
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