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Posted to dev@lucene.apache.org by "Johan Stuyts (JIRA)" <ji...@apache.org> on 2006/07/28 11:29:13 UTC
[jira] Created: (LUCENE-640) [PATCH] Performance improvement for
doNext() of ConjunctionScorer
[PATCH] Performance improvement for doNext() of ConjunctionScorer
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Key: LUCENE-640
URL: http://issues.apache.org/jira/browse/LUCENE-640
Project: Lucene - Java
Issue Type: Improvement
Components: Search
Affects Versions: 2.0.0
Reporter: Johan Stuyts
Attachments: Lucene2ConjunctionScorerDoNextPerformance.patch
I was able to improve the performance of 'doNext() of 'ConjunctionScorer' by over 20% by storing the result of some calls that were performed multiple times in local variables. The test program invoked the method over 400,000 times on each run.
I ran the performance tests on:
- Windows XP Pro SP2
- Sun JDK 1.5.0_07
- YourKit 5.5.4
- Lucene trunk
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[jira] Resolved: (LUCENE-640) [PATCH] Performance improvement for
doNext() of ConjunctionScorer
Posted by "Paul Elschot (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/LUCENE-640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Elschot resolved LUCENE-640.
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Resolution: Duplicate
Meanwhile LUCENE-443 and LUCENE-693 have solved/superseded this, so I think this issue can safely be closed.
> [PATCH] Performance improvement for doNext() of ConjunctionScorer
> -----------------------------------------------------------------
>
> Key: LUCENE-640
> URL: https://issues.apache.org/jira/browse/LUCENE-640
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 2.0.0
> Reporter: Johan Stuyts
> Attachments: Lucene2ConjunctionScorerDoNextPerformance.patch
>
>
> I was able to improve the performance of 'doNext() of 'ConjunctionScorer' by over 20% by storing the result of some calls that were performed multiple times in local variables. The test program invoked the method over 400,000 times on each run.
> I ran the performance tests on:
> - Windows XP Pro SP2
> - Sun JDK 1.5.0_07
> - YourKit 5.5.4
> - Lucene trunk
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[jira] Updated: (LUCENE-640) [PATCH] Performance improvement for
doNext() of ConjunctionScorer
Posted by "Johan Stuyts (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/LUCENE-640?page=all ]
Johan Stuyts updated LUCENE-640:
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Attachment: Lucene2ConjunctionScorerDoNextPerformance.patch
Optimization of 'doNext()' of 'ConjunctionScorer'.
> [PATCH] Performance improvement for doNext() of ConjunctionScorer
> -----------------------------------------------------------------
>
> Key: LUCENE-640
> URL: http://issues.apache.org/jira/browse/LUCENE-640
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Search
> Affects Versions: 2.0.0
> Reporter: Johan Stuyts
> Attachments: Lucene2ConjunctionScorerDoNextPerformance.patch
>
>
> I was able to improve the performance of 'doNext() of 'ConjunctionScorer' by over 20% by storing the result of some calls that were performed multiple times in local variables. The test program invoked the method over 400,000 times on each run.
> I ran the performance tests on:
> - Windows XP Pro SP2
> - Sun JDK 1.5.0_07
> - YourKit 5.5.4
> - Lucene trunk
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