Mercurial > hg > graal-compiler
diff src/share/vm/services/diagnosticCommand.hpp @ 7956:16fb9f942703
6479360: PrintClassHistogram improvements
Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)
Reviewed-by: coleenp, hseigel, sla, acorn
Contributed-by: ioi.lam@oracle.com
author | acorn |
---|---|
date | Fri, 25 Jan 2013 15:06:18 -0500 |
parents | fb19af007ffc |
children | 8f696cf1a0fb |
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--- a/src/share/vm/services/diagnosticCommand.hpp Thu Jan 24 23:30:45 2013 -0800 +++ b/src/share/vm/services/diagnosticCommand.hpp Fri Jan 25 15:06:18 2013 -0500 @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. + * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -178,7 +178,7 @@ }; #endif // INCLUDE_SERVICES -// See also: inspeactheap in attachListener.cpp +// See also: inspectheap in attachListener.cpp class ClassHistogramDCmd : public DCmdWithParser { protected: DCmdArgument<bool> _all; @@ -197,6 +197,27 @@ virtual void execute(TRAPS); }; +class ClassStatsDCmd : public DCmdWithParser { +protected: + DCmdArgument<bool> _all; + DCmdArgument<bool> _csv; + DCmdArgument<bool> _help; + DCmdArgument<char*> _columns; +public: + ClassStatsDCmd(outputStream* output, bool heap); + static const char* name() { + return "GC.class_stats"; + } + static const char* description() { + return "Provide statistics about Java class meta data. Requires -XX:+UnlockDiagnosticVMOptions."; + } + static const char* impact() { + return "High: Depends on Java heap size and content."; + } + static int num_arguments(); + virtual void execute(TRAPS); +}; + // See also: thread_dump in attachListener.cpp class ThreadDumpDCmd : public DCmdWithParser { protected: