FBUtilities.compareUnsigned could be faster with sun.misc.Unsafe
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                 Key: CASSANDRA-3435
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3435
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Chris Burroughs
            Priority: Minor


See: 
 - 
http://hiroshiyamauchi.blogspot.com/2010/08/fast-unsigned-byte-lexicographical.html
 - https://issues.apache.org/jira/browse/HADOOP-7761
 - 
http://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/primitives/UnsignedBytes.java?name=v10.0.1

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