http://java.sun.com/docs/hotspot/gc5.0/gc_tuning_5.html
When trying i-cms, we recommend the following as an initial set of command line options: -XX:+UseConcMarkSweepGC \ -XX:+CMSIncrementalMode \ -XX:+CMSIncrementalPacing \ -XX:CMSIncrementalDutyCycleMin=0 \ -XX:+CMSIncrementalDutyCycle=10 \ -XX:+PrintGCDetails \ -XX:+PrintGCTimeStamps \ -XX:-TraceClassUnloading
★ -Xmxまでメモリを使用するようになる？
http://java.sun.com/javase/technologies/hotspot/gc/gc_tuning_6.html
