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https://issues.apache.org/jira/browse/LUCENE-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated LUCENE-2504:
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Attachment: LUCENE-2504_SortMissingLast.patch
This was a simple attempt to try and simplify the comparators. Static classes
are used instead of inner classes. Unfortunately, it didn't help the JVMs from
getting stuck in badly optimized code (it was a long shot for that), but it
does result in a consistent 4% speedup.
It looks as simple as the previous version to my eye, so I'll commit if there
are no objections.
> sorting performance regression
> ------------------------------
>
> Key: LUCENE-2504
> URL: https://issues.apache.org/jira/browse/LUCENE-2504
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Yonik Seeley
> Fix For: 4.0
>
> Attachments: LUCENE-2504.patch, LUCENE-2504.patch, LUCENE-2504.patch,
> LUCENE-2504.zip, LUCENE-2504_SortMissingLast.patch
>
>
> sorting can be much slower on trunk than branch_3x
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