-Xms2048m -Xmx2048m -Xmn500m -XX:PermSize=512M -XX:SurvivorRatio=65536 -XX:MaxPermSize=512M -XX:+UseParNewGC -XX
:+UseConcMarkSweepGC -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=0 -XX:+CMSClassUnloadingEnabled -XX:+C
MSParallelRemarkEnabled -XX:LargePageSizeInBytes=128M -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSI
nitiatingOccupancyFraction=70 -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+PrintClassHistogram -XX:+PrintGCDetails -XX:+PrintGCTimeSta
mps -XX:+PrintHeapAtGC -Xloggc:./gc.log