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src/share/vm/memory/generationSpec.cpp@6acf14e730dd (annotated)

src/share/vm/memory/generationSpec.cpp

Tue, 16 Feb 2016 21:42:29 +0000

author

poonam

date

Tue, 16 Feb 2016 21:42:29 +0000

changeset 8308

6acf14e730dd

parent 6198

55fb97c4c58d

child 6876

710a3c8b516e

permissions

-rw-r--r--

8072725: Provide more granular levels for GC verification
Summary: Add option VerifySubSet to selectively verify the memory sub-systems
Reviewed-by: kevinw, jmasa

duke@435	1	/*
mikael@6198	2	* Copyright (c) 2001, 2013, 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"
coleenp@4037	26	#include "memory/binaryTreeDictionary.hpp"
stefank@2314	27	#include "memory/defNewGeneration.hpp"
stefank@2314	28	#include "memory/filemap.hpp"
stefank@2314	29	#include "memory/genRemSet.hpp"
stefank@2314	30	#include "memory/generationSpec.hpp"
stefank@2314	31	#include "memory/tenuredGeneration.hpp"
stefank@2314	32	#include "runtime/java.hpp"
jprovino@4542	33	#include "utilities/macros.hpp"
jprovino@4542	34	#if INCLUDE_ALL_GCS
stefank@2314	35	#include "gc_implementation/parNew/asParNewGeneration.hpp"
coleenp@4037	36	#include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"
stefank@2314	37	#include "gc_implementation/parNew/parNewGeneration.hpp"
jprovino@4542	38	#endif // INCLUDE_ALL_GCS
duke@435	39
duke@435	40	Generation* GenerationSpec::init(ReservedSpace rs, int level,
duke@435	41	GenRemSet* remset) {
duke@435	42	switch (name()) {
duke@435	43	case Generation::DefNew:
duke@435	44	return new DefNewGeneration(rs, init_size(), level);
duke@435	45
duke@435	46	case Generation::MarkSweepCompact:
duke@435	47	return new TenuredGeneration(rs, init_size(), level, remset);
duke@435	48
jprovino@4542	49	#if INCLUDE_ALL_GCS
duke@435	50	case Generation::ParNew:
duke@435	51	return new ParNewGeneration(rs, init_size(), level);
duke@435	52
duke@435	53	case Generation::ASParNew:
duke@435	54	return new ASParNewGeneration(rs,
duke@435	55	init_size(),
duke@435	56	init_size() /* min size */,
duke@435	57	level);
duke@435	58
duke@435	59	case Generation::ConcurrentMarkSweep: {
duke@435	60	assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435	61	CardTableRS* ctrs = remset->as_CardTableRS();
duke@435	62	if (ctrs == NULL) {
duke@435	63	vm_exit_during_initialization("Rem set incompatibility.");
duke@435	64	}
duke@435	65	// Otherwise
duke@435	66	// The constructor creates the CMSCollector if needed,
duke@435	67	// else registers with an existing CMSCollector
duke@435	68
duke@435	69	ConcurrentMarkSweepGeneration* g = NULL;
duke@435	70	g = new ConcurrentMarkSweepGeneration(rs,
duke@435	71	init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
jmasa@3730	72	(FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
duke@435	73
duke@435	74	g->initialize_performance_counters();
duke@435	75
duke@435	76	return g;
duke@435	77	}
duke@435	78
duke@435	79	case Generation::ASConcurrentMarkSweep: {
duke@435	80	assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435	81	CardTableRS* ctrs = remset->as_CardTableRS();
duke@435	82	if (ctrs == NULL) {
duke@435	83	vm_exit_during_initialization("Rem set incompatibility.");
duke@435	84	}
duke@435	85	// Otherwise
duke@435	86	// The constructor creates the CMSCollector if needed,
duke@435	87	// else registers with an existing CMSCollector
duke@435	88
duke@435	89	ASConcurrentMarkSweepGeneration* g = NULL;
duke@435	90	g = new ASConcurrentMarkSweepGeneration(rs,
duke@435	91	init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
jmasa@3730	92	(FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);
duke@435	93
duke@435	94	g->initialize_performance_counters();
duke@435	95
duke@435	96	return g;
duke@435	97	}
jprovino@4542	98	#endif // INCLUDE_ALL_GCS
duke@435	99
duke@435	100	default:
duke@435	101	guarantee(false, "unrecognized GenerationName");
duke@435	102	return NULL;
duke@435	103	}
duke@435	104	}