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src/hotspot/share/memory/metaspace/metaspaceDCmd.hpp

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rev 50188 : [mq]: 8203219-VM.metaspace-show-loaded-classes
   1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_
  26 #define SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_
  27 
  28 #include "services/diagnosticCommand.hpp"
  29 
  30 class outputStream;
  31 
  32 namespace metaspace {
  33 
  34 class MetaspaceDCmd : public DCmdWithParser {
  35   DCmdArgument<bool> _basic;
  36   DCmdArgument<bool> _show_loaders;
  37   DCmdArgument<bool> _by_spacetype;
  38   DCmdArgument<bool> _by_chunktype;
  39   DCmdArgument<bool> _show_vslist;
  40   DCmdArgument<bool> _show_vsmap;
  41   DCmdArgument<char*> _scale;

  42 public:
  43   MetaspaceDCmd(outputStream* output, bool heap);
  44   static const char* name() {
  45     return "VM.metaspace";
  46   }
  47   static const char* description() {
  48     return "Prints the statistics for the metaspace";
  49   }
  50   static const char* impact() {
  51       return "Medium: Depends on number of classes loaded.";
  52   }
  53   static const JavaPermission permission() {
  54     JavaPermission p = {"java.lang.management.ManagementPermission",
  55                         "monitor", NULL};
  56     return p;
  57   }
  58   static int num_arguments();
  59   virtual void execute(DCmdSource source, TRAPS);
  60 };
  61 
   1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2018, SAP and/or its affiliates.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_
  27 #define SHARE_MEMORY_METASPACE_METASPACEDCMD_HPP_
  28 
  29 #include "services/diagnosticCommand.hpp"
  30 
  31 class outputStream;
  32 
  33 namespace metaspace {
  34 
  35 class MetaspaceDCmd : public DCmdWithParser {
  36   DCmdArgument<bool> _basic;
  37   DCmdArgument<bool> _show_loaders;
  38   DCmdArgument<bool> _by_spacetype;
  39   DCmdArgument<bool> _by_chunktype;
  40   DCmdArgument<bool> _show_vslist;
  41   DCmdArgument<bool> _show_vsmap;
  42   DCmdArgument<char*> _scale;
  43   DCmdArgument<bool> _show_classes;
  44 public:
  45   MetaspaceDCmd(outputStream* output, bool heap);
  46   static const char* name() {
  47     return "VM.metaspace";
  48   }
  49   static const char* description() {
  50     return "Prints the statistics for the metaspace";
  51   }
  52   static const char* impact() {
  53       return "Medium: Depends on number of classes loaded.";
  54   }
  55   static const JavaPermission permission() {
  56     JavaPermission p = {"java.lang.management.ManagementPermission",
  57                         "monitor", NULL};
  58     return p;
  59   }
  60   static int num_arguments();
  61   virtual void execute(DCmdSource source, TRAPS);
  62 };
  63 
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