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https://issues.apache.org/jira/browse/LUCENE-639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Grant Ingersoll resolved LUCENE-639.
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Resolution: Won't Fix
The testing and discussion seem inconclusive on this and it hasn't been
followed up on in a good amount of time, so I am going to mark it as won't fix.
> [PATCH] Slight performance improvement for readVInt() of IndexInput
> -------------------------------------------------------------------
>
> Key: LUCENE-639
> URL: https://issues.apache.org/jira/browse/LUCENE-639
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Affects Versions: 2.0.0
> Reporter: Johan Stuyts
> Priority: Minor
> Attachments: Lucene2ReadVIntPerformance.patch, readVInt performance
> results.pdf, ReadVIntPerformanceMain.java
>
>
> By unrolling the loop in readVInt() I was able to get a slight, about 1.8 %,
> performance improvement for this method. The test program invoked the method
> over 17 million 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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