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src/share/vm/gc_implementation/shared/generationCounters.cpp@595c0f60d50d (annotated)

src/share/vm/gc_implementation/shared/generationCounters.cpp

Tue, 18 Mar 2014 19:07:22 +0100

author

pliden

date

Tue, 18 Mar 2014 19:07:22 +0100

changeset 6413

595c0f60d50d

parent 4153

b9a9ed0f8eeb

child 6876

710a3c8b516e

permissions

-rw-r--r--

8029075: String deduplication in G1
Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192
Reviewed-by: brutisso, tschatzl, coleenp

duke@435	1	/*
mikael@4153	2	* Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "gc_implementation/shared/generationCounters.hpp"
stefank@2314	27	#include "memory/resourceArea.hpp"
duke@435	28
tonyp@3176	29	void GenerationCounters::initialize(const char* name, int ordinal, int spaces,
tonyp@3176	30	size_t min_capacity, size_t max_capacity,
tonyp@3176	31	size_t curr_capacity) {
duke@435	32	if (UsePerfData) {
duke@435	33	EXCEPTION_MARK;
duke@435	34	ResourceMark rm;
duke@435	35
duke@435	36	const char* cns = PerfDataManager::name_space("generation", ordinal);
duke@435	37
zgu@3900	38	_name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
duke@435	39	strcpy(_name_space, cns);
duke@435	40
duke@435	41	const char* cname = PerfDataManager::counter_name(_name_space, "name");
duke@435	42	PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
duke@435	43
duke@435	44	cname = PerfDataManager::counter_name(_name_space, "spaces");
duke@435	45	PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_None,
duke@435	46	spaces, CHECK);
duke@435	47
duke@435	48	cname = PerfDataManager::counter_name(_name_space, "minCapacity");
duke@435	49	PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
tonyp@3176	50	min_capacity, CHECK);
duke@435	51
duke@435	52	cname = PerfDataManager::counter_name(_name_space, "maxCapacity");
duke@435	53	PerfDataManager::create_constant(SUN_GC, cname, PerfData::U_Bytes,
tonyp@3176	54	max_capacity, CHECK);
duke@435	55
duke@435	56	cname = PerfDataManager::counter_name(_name_space, "capacity");
tonyp@3176	57	_current_size =
tonyp@3176	58	PerfDataManager::create_variable(SUN_GC, cname, PerfData::U_Bytes,
tonyp@3176	59	curr_capacity, CHECK);
duke@435	60	}
duke@435	61	}
tonyp@3176	62
tonyp@3176	63	GenerationCounters::GenerationCounters(const char* name,
tonyp@3176	64	int ordinal, int spaces,
tonyp@3176	65	VirtualSpace* v)
tonyp@3176	66	: _virtual_space(v) {
tonyp@3176	67	assert(v != NULL, "don't call this constructor if v == NULL");
tonyp@3176	68	initialize(name, ordinal, spaces,
tonyp@3176	69	v->committed_size(), v->reserved_size(), v->committed_size());
tonyp@3176	70	}
tonyp@3176	71
tonyp@3176	72	GenerationCounters::GenerationCounters(const char* name,
tonyp@3176	73	int ordinal, int spaces,
tonyp@3176	74	size_t min_capacity, size_t max_capacity,
tonyp@3176	75	size_t curr_capacity)
tonyp@3176	76	: _virtual_space(NULL) {
tonyp@3176	77	initialize(name, ordinal, spaces, min_capacity, max_capacity, curr_capacity);
tonyp@3176	78	}
tonyp@3176	79
tonyp@3176	80	void GenerationCounters::update_all() {
tonyp@3176	81	assert(_virtual_space != NULL, "otherwise, override this method");
tonyp@3176	82	_current_size->set_value(_virtual_space->committed_size());
tonyp@3176	83	}