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
Fix For: 0.7.1
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.
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