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src/share/vm/memory/metaspaceCounters.cpp@f90c822e73f8 (annotated)

src/share/vm/memory/metaspaceCounters.cpp

Wed, 27 Apr 2016 01:25:04 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:25:04 +0800

changeset 0

f90c822e73f8

child 6876

710a3c8b516e

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#include "precompiled.hpp"
aoqi@0	26	#include "memory/metaspaceCounters.hpp"
aoqi@0	27	#include "memory/resourceArea.hpp"
aoqi@0	28	#include "runtime/globals.hpp"
aoqi@0	29	#include "runtime/perfData.hpp"
aoqi@0	30	#include "utilities/exceptions.hpp"
aoqi@0	31
aoqi@0	32	class MetaspacePerfCounters: public CHeapObj<mtInternal> {
aoqi@0	33	friend class VMStructs;
aoqi@0	34	PerfVariable* _capacity;
aoqi@0	35	PerfVariable* _used;
aoqi@0	36	PerfVariable* _max_capacity;
aoqi@0	37
aoqi@0	38	PerfVariable* create_variable(const char *ns, const char *name, size_t value, TRAPS) {
aoqi@0	39	const char *path = PerfDataManager::counter_name(ns, name);
aoqi@0	40	return PerfDataManager::create_variable(SUN_GC, path, PerfData::U_Bytes, value, THREAD);
aoqi@0	41	}
aoqi@0	42
aoqi@0	43	void create_constant(const char *ns, const char *name, size_t value, TRAPS) {
aoqi@0	44	const char *path = PerfDataManager::counter_name(ns, name);
aoqi@0	45	PerfDataManager::create_constant(SUN_GC, path, PerfData::U_Bytes, value, THREAD);
aoqi@0	46	}
aoqi@0	47
aoqi@0	48	public:
aoqi@0	49	MetaspacePerfCounters(const char* ns, size_t min_capacity, size_t curr_capacity, size_t max_capacity, size_t used) {
aoqi@0	50	EXCEPTION_MARK;
aoqi@0	51	ResourceMark rm;
aoqi@0	52
aoqi@0	53	create_constant(ns, "minCapacity", min_capacity, THREAD);
aoqi@0	54	_capacity = create_variable(ns, "capacity", curr_capacity, THREAD);
aoqi@0	55	_max_capacity = create_variable(ns, "maxCapacity", max_capacity, THREAD);
aoqi@0	56	_used = create_variable(ns, "used", used, THREAD);
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	void update(size_t capacity, size_t max_capacity, size_t used) {
aoqi@0	60	_capacity->set_value(capacity);
aoqi@0	61	_max_capacity->set_value(max_capacity);
aoqi@0	62	_used->set_value(used);
aoqi@0	63	}
aoqi@0	64	};
aoqi@0	65
aoqi@0	66	MetaspacePerfCounters* MetaspaceCounters::_perf_counters = NULL;
aoqi@0	67
aoqi@0	68	size_t MetaspaceCounters::used() {
aoqi@0	69	return MetaspaceAux::used_bytes();
aoqi@0	70	}
aoqi@0	71
aoqi@0	72	size_t MetaspaceCounters::capacity() {
aoqi@0	73	return MetaspaceAux::committed_bytes();
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	size_t MetaspaceCounters::max_capacity() {
aoqi@0	77	return MetaspaceAux::reserved_bytes();
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	void MetaspaceCounters::initialize_performance_counters() {
aoqi@0	81	if (UsePerfData) {
aoqi@0	82	assert(_perf_counters == NULL, "Should only be initialized once");
aoqi@0	83
aoqi@0	84	size_t min_capacity = 0;
aoqi@0	85	_perf_counters = new MetaspacePerfCounters("metaspace", min_capacity,
aoqi@0	86	capacity(), max_capacity(), used());
aoqi@0	87	}
aoqi@0	88	}
aoqi@0	89
aoqi@0	90	void MetaspaceCounters::update_performance_counters() {
aoqi@0	91	if (UsePerfData) {
aoqi@0	92	assert(_perf_counters != NULL, "Should be initialized");
aoqi@0	93
aoqi@0	94	_perf_counters->update(capacity(), max_capacity(), used());
aoqi@0	95	}
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	MetaspacePerfCounters* CompressedClassSpaceCounters::_perf_counters = NULL;
aoqi@0	99
aoqi@0	100	size_t CompressedClassSpaceCounters::used() {
aoqi@0	101	return MetaspaceAux::used_bytes(Metaspace::ClassType);
aoqi@0	102	}
aoqi@0	103
aoqi@0	104	size_t CompressedClassSpaceCounters::capacity() {
aoqi@0	105	return MetaspaceAux::committed_bytes(Metaspace::ClassType);
aoqi@0	106	}
aoqi@0	107
aoqi@0	108	size_t CompressedClassSpaceCounters::max_capacity() {
aoqi@0	109	return MetaspaceAux::reserved_bytes(Metaspace::ClassType);
aoqi@0	110	}
aoqi@0	111
aoqi@0	112	void CompressedClassSpaceCounters::update_performance_counters() {
aoqi@0	113	if (UsePerfData && UseCompressedClassPointers) {
aoqi@0	114	assert(_perf_counters != NULL, "Should be initialized");
aoqi@0	115
aoqi@0	116	_perf_counters->update(capacity(), max_capacity(), used());
aoqi@0	117	}
aoqi@0	118	}
aoqi@0	119
aoqi@0	120	void CompressedClassSpaceCounters::initialize_performance_counters() {
aoqi@0	121	if (UsePerfData) {
aoqi@0	122	assert(_perf_counters == NULL, "Should only be initialized once");
aoqi@0	123	const char* ns = "compressedclassspace";
aoqi@0	124
aoqi@0	125	if (UseCompressedClassPointers) {
aoqi@0	126	size_t min_capacity = 0;
aoqi@0	127	_perf_counters = new MetaspacePerfCounters(ns, min_capacity, capacity(),
aoqi@0	128	max_capacity(), used());
aoqi@0	129	} else {
aoqi@0	130	_perf_counters = new MetaspacePerfCounters(ns, 0, 0, 0, 0);
aoqi@0	131	}
aoqi@0	132	}
aoqi@0	133	}