Useful JVM options

gc

-verbose:gc
-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-XX:+PrintGCDateStamps
-XX:+PrintHeapAtGC
-XX:+TraceClassLoading
-XX:+TraceClassUnloading
-XX:+PrintTenuringDistribution
-Xloggc:gc.log
-XX:+PrintGC
-XX:+PrintGCApplicationStoppedTime
-XX:+PrintPromotionFailure
-XX:PrintFLSStatistics=1

gc_tuning

-XX:NewRatio=2
-XX:SurvivorRatio=6

http://stackoverflow.com/questions/9053144

heap_dump

-XX:+HeapDumpOnOutOfMemoryError
-XX:HeapDumpPath="/tmp"

jmx

-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=5005
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false

memory

-XX:PermSize=120M
-XX:MaxPermSize=256M
-Xms500M
-Xmx800M

remote_debug

-Xrunjdwp:transport=dt_socket,address=8778,server=y,suspend=n