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T Jake Luciani commented on CASSANDRA-1714: ------------------------------------------- After re-looking at the patch surprised local reads aren't faster, your changes to FileDataInput should make SSTable reads zero-copy for column data. Did you try benchmarking with large columns? -S 10k? > zero-copy reads > --------------- > > Key: CASSANDRA-1714 > URL: https://issues.apache.org/jira/browse/CASSANDRA-1714 > Project: Cassandra > Issue Type: Improvement > Components: Core > Reporter: Jonathan Ellis > Assignee: Pavel Yaskevich > Fix For: 0.7.1 > > Attachments: CASSANDRA-1714.patch, zerocopy.txt > > Original Estimate: 32h > Remaining Estimate: 32h > > Since we are already using mmap'd ByteBuffers in MappedFileDataInput we > should be able to do zero-copy reads (via buffer.slice()), which would give > us better performance than CASSANDRA-1651 without having to worry about > buffer management. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.