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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LUCENE-6548) Optimize BlockTree's Terms.intersect a bit for "very finite" automata
Date Tue, 23 Jun 2015 20:15:43 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-6548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-6548.
----------------------------------------
    Resolution: Fixed

> 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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