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https://issues.apache.org/jira/browse/LUCENE-1145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless reassigned LUCENE-1145:
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Assignee: Michael McCandless
> DisjunctionSumScorer small tweak
> --------------------------------
>
> Key: LUCENE-1145
> URL: https://issues.apache.org/jira/browse/LUCENE-1145
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Environment: all
> Reporter: Eks Dev
> Assignee: Michael McCandless
> Priority: Trivial
> Fix For: 2.9
>
> Attachments: DisjunctionSumScorerOptimization.patch,
> DSSQueueSizeOptimization.patch, TestScorerPerformance.java
>
>
> Move ScorerDocQueue initialization from next() and skipTo() methods to the
> Constructor. Makes DisjunctionSumScorer a bit faster (less than 1% on my
> tests).
> Downside (if this is one, I cannot judge) would be throwing IOException from
> DisjunctionSumScorer constructors as we touch HardDisk there. I see no
> problem as this IOException does not propagate too far (the only modification
> I made is in BooleanScorer2)
> if (scorerDocQueue == null) {
> initScorerDocQueue();
> }
>
> Attached test is just quick & dirty rip of TestScorerPerf from standard
> Lucene test package. Not included as patch as I do not like it.
> All test pass, patch made on trunk revision 613923
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