Alan Woodward created LUCENE-7774:
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Summary: Allow BKDWriter buffer sizes to be configurable
Key: LUCENE-7774
URL: https://issues.apache.org/jira/browse/LUCENE-7774
Project: Lucene - Core
Issue Type: Improvement
Reporter: Alan Woodward
BKDWriter has a 16Mb internal buffer it uses for sorting points, which then
spills over to on-disk sorting if there are too many values. The difference in
performance between in-buffer and on-disk sorting is pretty stark, and it would
be nice to make this buffer size configurable so that users can choose to use
more RAM during indexing to speed things up.
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