tomcat jvm参数优化配置

JAVA_OPTS="-server -Xms2048M -Xmx2048M -Xss512k -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:PermSize=256M -XX:MaxPermSize=512m -XX:+DisableExplicitGC -XX:MaxTenuringThreshold=31 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless=true"