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Amit Jain commented on JCR-3735: -------------------------------- >> 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. You are right on my windows laptop (Windows 7, Java 7, 64 bit SSD) copying an 800MB file is 3 times slower using the FileChannel.transferTo(). But on a linux system, turns out that FileChannel.transferTo() is about 20% faster, though it is not an orders of magnitude faster. So, what you suggest as the next step? > 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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)