一些常用的命令

admin@WEN_NAS:~$ java -XX:+PrintFlagsFinal -version|grep Code
    uintx CodeCacheExpansionSize                    = 65536                               {pd product}
    uintx CodeCacheMinimumFreeSpace                 = 512000                              {product}
    uintx InitialCodeCacheSize                      = 2555904                             {pd product}
     intx InlineSmallCode                           = 2000                                {pd product}
     bool PrintCodeCache                            = false                               {product}
     bool PrintCodeCacheonCompilation               = false                               {product}
     bool ProfilerPrintByteCodeStatistics           = false                               {product}
    uintx ReservedCodeCacheSize                     = 251658240                           {pd product}
    uintx SharedMiscCodeSize                        = 122880                              {product}
     bool UseCodeCacheFlushing                      = true                                {product}
     bool UseLoopInvariantCodeMotion                = true                                {C1 product}
     intx hashCode                                  = 5                                   {product}