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src/share/vm/services/nmtDCmd.hpp@833b0f92429a (annotated)

src/share/vm/services/nmtDCmd.hpp

Wed, 27 Aug 2014 08:19:12 -0400

author

zgu

date

Wed, 27 Aug 2014 08:19:12 -0400

changeset 7074

833b0f92429a

parent 5047

31a4e55f8c9d

child 7535

7ae4e26cb1e0

permissions

-rw-r--r--

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

zgu@3900	1	/*
zgu@7074	2	* Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
zgu@3900	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
zgu@3900	4	*
zgu@3900	5	* This code is free software; you can redistribute it and/or modify it
zgu@3900	6	* under the terms of the GNU General Public License version 2 only, as
zgu@3900	7	* published by the Free Software Foundation.
zgu@3900	8	*
zgu@3900	9	* This code is distributed in the hope that it will be useful, but WITHOUT
zgu@3900	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
zgu@3900	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
zgu@3900	12	* version 2 for more details (a copy is included in the LICENSE file that
zgu@3900	13	* accompanied this code).
zgu@3900	14	*
zgu@3900	15	* You should have received a copy of the GNU General Public License version
zgu@3900	16	* 2 along with this work; if not, write to the Free Software Foundation,
zgu@3900	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
zgu@3900	18	*
zgu@3900	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
zgu@3900	20	* or visit www.oracle.com if you need additional information or have any
zgu@3900	21	* questions.
zgu@3900	22	*
zgu@3900	23	*/
zgu@3900	24
zgu@3900	25	#ifndef SHARE_VM_SERVICES_NMT_DCMD_HPP
zgu@3900	26	#define SHARE_VM_SERVICES_NMT_DCMD_HPP
zgu@3900	27
zgu@7074	28	#if INCLUDE_NMT
zgu@7074	29
zgu@3900	30	#include "services/diagnosticArgument.hpp"
zgu@3900	31	#include "services/diagnosticFramework.hpp"
zgu@7074	32	#include "services/memBaseline.hpp"
zgu@7074	33	#include "services/mallocTracker.hpp"
zgu@3900	34
zgu@3900	35	/**
zgu@3900	36	* Native memory tracking DCmd implementation
zgu@3900	37	*/
zgu@3900	38	class NMTDCmd: public DCmdWithParser {
zgu@3900	39	protected:
zgu@3900	40	DCmdArgument<bool> _summary;
zgu@3900	41	DCmdArgument<bool> _detail;
zgu@3900	42	DCmdArgument<bool> _baseline;
zgu@3900	43	DCmdArgument<bool> _summary_diff;
zgu@3900	44	DCmdArgument<bool> _detail_diff;
zgu@3900	45	DCmdArgument<bool> _shutdown;
zgu@7074	46	DCmdArgument<bool> _statistics;
zgu@3900	47	DCmdArgument<char*> _scale;
zgu@3900	48
zgu@3900	49	public:
zgu@3900	50	NMTDCmd(outputStream* output, bool heap);
zgu@3900	51	static const char* name() { return "VM.native_memory"; }
zgu@3900	52	static const char* description() {
zgu@3900	53	return "Print native memory usage";
zgu@3900	54	}
zgu@3900	55	static const char* impact() {
fparain@5047	56	return "Medium";
fparain@5047	57	}
fparain@5047	58	static const JavaPermission permission() {
fparain@5047	59	JavaPermission p = {"java.lang.management.ManagementPermission",
fparain@5047	60	"monitor", NULL};
fparain@5047	61	return p;
zgu@3900	62	}
zgu@3900	63	static int num_arguments();
fparain@5047	64	virtual void execute(DCmdSource source, TRAPS);
zgu@7074	65
zgu@7074	66	private:
zgu@7074	67	void report(bool summaryOnly, size_t scale);
zgu@7074	68	void report_diff(bool summaryOnly, size_t scale);
zgu@7074	69
zgu@7074	70	size_t get_scale(const char* scale) const;
zgu@7074	71
zgu@7074	72	// check if NMT running at detail tracking level
zgu@7074	73	bool check_detail_tracking_level(outputStream* out);
zgu@3900	74	};
zgu@3900	75
zgu@7074	76	#endif // INCLUDE_NMT
zgu@7074	77
zgu@3900	78	#endif // SHARE_VM_SERVICES_NMT_DCMD_HPP