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The "PerformanceTuning" page has been changed by MarkWatson: http://wiki.apache.org/cassandra/PerformanceTuning?action=diff&rev1=7&rev2=8 Comment: Added clarification for Dcassandra.compaction.priority -XX:ThreadPriorityPolicy=42 \ -Dcassandra.compaction.priority=1 \ }}} + + The above option for setting the compaction priority (-Dcassandra.compaction.priority=1) is out of date as of 1.0. See the options for controlling compaction settings in the cassandra yaml configuration for details. The above code was originally pulled from: https://issues.apache.org/jira/browse/CASSANDRA-1181 + + === Useful JVM options === {{{ -XX:+UseCompressedOops # enables compressed references, reducing memory overhead on 64bit JVMs
