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https://issues.apache.org/jira/browse/LUCENE-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12780670#action_12780670
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Yonik Seeley commented on LUCENE-2086:
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bq. for better locality for the disk heads
It's not just the disk heads, right?
I assumed the majority of the benefit was due to the cached TermEnum scan
(instead of a seek) in TermInfosReader.get()
> When resolving deletes, IW should resolve in term sort order
> ------------------------------------------------------------
>
> Key: LUCENE-2086
> URL: https://issues.apache.org/jira/browse/LUCENE-2086
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Index
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 3.1
>
> Attachments: LUCENE-2086.patch
>
>
> See java-dev thread "IndexWriter.updateDocument performance improvement".
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