anchor.diff:  #       -XX:+CMSIncrementalPacing                                 \
   #       -XX:CMSIncrementalDutyCycleMin=0                          \
   #       -XX:CMSIncrementalDutyCycle=10                            \
  -# <%- else %>        
  +# <%- else %>
   #       -XX:+UseCMSInitiatingOccupancyOnly                        \
   # <%- end %>
  +#
         
   # # Very Large Heaps and Caches         http://www.devwebsphere.com/devwebsphere/2007/02/very_large_heap.htmla          ## great overview
  -# # Cassandra Garbage Collection Tuning http://blog.mikiobraun.de/2010/08/cassandra-gc-tuning.html                      
  +# # Cassandra Garbage Collection Tuning http://blog.mikiobraun.de/2010/08/cassandra-gc-tuning.html
   # # Garbage Collection FAQ              http://www.oracle.com/technetwork/java/faq-140837.html
   # # Java HotSpot VM FAQ                 http://www.oracle.com/technetwork/java/hotspotfaq-138619.html
   # # Turbocharging Java HotSpot VM       http://java.sun.com/developer/technicalArticles/Programming/turbo/
  
positive.code:       -Dcassandra-config=${CASSANDRA_CONF}                      \
        -Dcassandra-foreground=yes                                \
        -cp ${CLASSPATH}                                          \
        org.apache.cassandra.thrift.CassandraDaemon 2>&1
  
  #      -XX:NewSize=1524m                                         \
  #      -XX:MaxNewSize=1524m                                      \
  
  #       -XX:+AggressiveOpts                                       \
  #       -XX:+UseCompressedOops                                    \
  
negative.code: #   -XX:NewSize=21m                         ## Initial size of the young generation. (You may use suffixes such as m, g, e.g. -XX:NewSize=32m)
  #   -XX:MaxNewSize=42m                      ## Maximal size of the young generation.
  #   -XX:NewRatio=n                          ## sets the ratio of young generation to old generation to 1:n (for example n = 3 means you’ll have 25% new generation and 75% old generation.
  #
  # # The size of the survivor space and the migration is controlled by the following options:
  #   -XX:SurvivorRatio=8                     ## sets the ratio of “young eden” to “young survivors” to 1:n.
  #   -XX:MaxTenuringThreshold=1              ## controls at what age (that is, number of survived garbage collections) objects migrate to the old generation.
  #
  #   -XX:CMSInitiatingOccupancyFraction=pct  ## Controls the percentage of the old generation when the CMS is triggered.
  #   -XX:+UseCMSInitiatingOccupancyOnly      ## ensures that the percentage is kept fixed.
  #
  # # for incremental mark-and-sweep
  #   -XX:+UseConcMarkSweepGC                 \
  #   -XX:+CMSIncrementalMode                 \
  