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https://issues.apache.org/jira/browse/LUCENE-6548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-6548:
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Attachment: LUCENE-6548.patch
Another iteration, still work in progress ... this one adds an index format
change to try to recover some of the perf loss when we added auto-prefix ...
> Optimize BlockTree's Terms.intersect a bit for "very finite" automata
> ---------------------------------------------------------------------
>
> Key: LUCENE-6548
> URL: https://issues.apache.org/jira/browse/LUCENE-6548
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 5.3, Trunk
>
> Attachments: LUCENE-6548.patch, LUCENE-6548.patch, LUCENE-6548.patch
>
>
> I've been digging into why BlockTree's Terms.intersect impl is slower for a
> "very finite" union-of-terms test over random IDs (LUCENE-3893) and I found a
> few performance improvements that at least for that one use case gets a ~11%
> speedup.
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