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https://issues.apache.org/jira/browse/JCR-3735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913019#comment-13913019
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Jukka Zitting commented on JCR-3735:
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bq. Using FileChannel which should be faster for large files.
Do you have numbers to back that statement? A quick benchmark on my laptop
(Windows 7, Java 7, 64 bit, SSD) shows {{FileChannel.transferTo()}} to actually
be an order of magnitude *slower* than a simple buffered copy from one file to
another.
> Efficient copying of binaries in Jackrabbit DataStores
> ------------------------------------------------------
>
> Key: JCR-3735
> URL: https://issues.apache.org/jira/browse/JCR-3735
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core
> Affects Versions: 2.7.4
> Reporter: Amit Jain
>
> In the DataStore implementations an additional temporary file is created for
> every binary uploaded. This step is an additional overhead when the upload
> process itself creates a temporary file.
> So, the solution proposed is to check if the input stream passed is a
> FileInputStream and then use the FileChannel object associated with the input
> stream to copy the file.
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