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https://issues.apache.org/jira/browse/LUCENE-8703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16775181#comment-16775181
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Michael McCandless commented on LUCENE-8703:
--------------------------------------------
It'd be nice to have a metric in our nightly points benchmarks measuring how
much heap was required while building the index.
> Build point writers only when needed on the BKD tree
> ----------------------------------------------------
>
> Key: LUCENE-8703
> URL: https://issues.apache.org/jira/browse/LUCENE-8703
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Ignacio Vera
> Priority: Major
> Attachments: LUCENE-8703.patch, LUCENE-8703.patch, LUCENE-8703.patch
>
>
> With the introduction of LUCENE-8699, I have realised the BKD tree uses quite
> a lot of heap even when it is not needed, for example for 1D points.
> In this issue I propose to create point writers only when needed. In addition
> I propose to create PointWriters based on the estimated point count given in
> the constructor.
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