jdk的mixed mode和sharing解释

See this page for an explanation of "sharing"
http://java.sun.com/javase/6/docs/technotes/guides/vm/class-data-sharing.html

"mixed" refers compiled vs. interpreted code. --编译还是解释

Java command options
-Xmixed tells the jvm to both interpret and compile code
-Xint tells the jvm to only interpret code
-Xcomp tells the jvm to only compile code
-XX:CompileThreshold=nn number of method executions before a method is compiled

Related information:
http://java.sun.com/javase/technologies/hotspot/vmoptions.jsp