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https://issues.apache.org/jira/browse/LUCENE-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561609#action_12561609
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Michael McCandless commented on LUCENE-1121:
--------------------------------------------
Sun's JVM, 1.4 (on the Windows XP Pro SP2 laptop), Sun's JVM 1.6 (on the
Windows Server 2003 64 R2 machine), Sun's JVM 1.5 on Linux and Apple's release
of Sun's JVM for the two OS X runs.
> Use nio.transferTo when copying large blocks of bytes
> -----------------------------------------------------
>
> Key: LUCENE-1121
> URL: https://issues.apache.org/jira/browse/LUCENE-1121
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Store
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Priority: Minor
> Attachments: LUCENE-1121.patch, LUCENE-1121.patch, testIO.java
>
>
> When building a CFS file, and also when merging stored fields (and
> term vectors, with LUCENE-1120), we copy large blocks of bytes at
> once.
> We currently do this with an intermediate buffer.
> But, nio.transferTo should be somewhat faster on OS's that offer low
> level IO APIs for moving blocks of bytes between files.
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