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src/share/vm/services/psMemoryPool.hpp@37f87013dfd8 (annotated)

src/share/vm/services/psMemoryPool.hpp

Thu, 05 Jun 2008 15:57:56 -0700

author

ysr

date

Thu, 05 Jun 2008 15:57:56 -0700

changeset 777

37f87013dfd8

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr

duke@435	1	/*
duke@435	2	* Copyright (c) 2007 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	class PSGenerationPool : public CollectedMemoryPool {
duke@435	26	private:
duke@435	27	PSOldGen* _gen;
duke@435	28
duke@435	29	public:
duke@435	30	PSGenerationPool(PSOldGen* pool, const char* name, PoolType type, bool support_usage_threshold);
duke@435	31	PSGenerationPool(PSPermGen* pool, const char* name, PoolType type, bool support_usage_threshold);
duke@435	32
duke@435	33	MemoryUsage get_memory_usage();
duke@435	34	size_t used_in_bytes() { return _gen->used_in_bytes(); }
duke@435	35	size_t max_size() const { return _gen->reserved().byte_size(); }
duke@435	36	};
duke@435	37
duke@435	38	class EdenMutableSpacePool : public CollectedMemoryPool {
duke@435	39	private:
duke@435	40	PSYoungGen* _gen;
duke@435	41	MutableSpace* _space;
duke@435	42
duke@435	43	public:
duke@435	44	EdenMutableSpacePool(PSYoungGen* gen,
duke@435	45	MutableSpace* space,
duke@435	46	const char* name,
duke@435	47	PoolType type,
duke@435	48	bool support_usage_threshold);
duke@435	49
duke@435	50	MutableSpace* space() { return _space; }
duke@435	51	MemoryUsage get_memory_usage();
duke@435	52	size_t used_in_bytes() { return space()->used_in_bytes(); }
duke@435	53	size_t max_size() const {
duke@435	54	// Eden's max_size = max_size of Young Gen - the current committed size of survivor spaces
duke@435	55	return _gen->max_size() - _gen->from_space()->capacity_in_bytes() - _gen->to_space()->capacity_in_bytes();
duke@435	56	}
duke@435	57	};
duke@435	58
duke@435	59	class SurvivorMutableSpacePool : public CollectedMemoryPool {
duke@435	60	private:
duke@435	61	PSYoungGen* _gen;
duke@435	62
duke@435	63	public:
duke@435	64	SurvivorMutableSpacePool(PSYoungGen* gen,
duke@435	65	const char* name,
duke@435	66	PoolType type,
duke@435	67	bool support_usage_threshold);
duke@435	68
duke@435	69	MemoryUsage get_memory_usage();
duke@435	70
duke@435	71	size_t used_in_bytes() {
duke@435	72	return _gen->from_space()->used_in_bytes();
duke@435	73	}
duke@435	74	size_t committed_in_bytes() {
duke@435	75	return _gen->from_space()->capacity_in_bytes();
duke@435	76	}
duke@435	77	size_t max_size() const {
duke@435	78	// Return current committed size of the from-space
duke@435	79	return _gen->from_space()->capacity_in_bytes();
duke@435	80	}
duke@435	81	};