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https://issues.apache.org/jira/browse/LUCENE-2504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12909098#action_12909098
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David Smiley commented on LUCENE-2504:
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Yonik, just curious, how do you know what HotSpot is doing? Empirically based
on performance numbers? HotSpot code or documentation that spells out exactly
when it inlines? Or is there some tool or diagnostic capability to learn this
information?
> 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.zip
>
>
> sorting can be much slower on trunk than branch_3x
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