启动参数-server -Xms1024m -Xmx1024m -XX:NewSize=128m -XX:MaxNewSize=128m -XX:PermSize=128m -XX:MaxPermSize=256m -XX:SurvivorRatio=8 -XX:+UseCodeCacheFlushing -XX:+AggressiveOpts -XX:ReservedCodeCacheSize=64m -XX:-TraceClassUnloading -ea -Dsun.io.useCanonCaches=false