5c58d27aac
Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Co-authored-by: Stefan Karlsson <stefan.karlsson@oracle.com> Co-authored-by: Mikael Gerdin <mikael.gerdin@oracle.com> Co-authored-by: Tom Rodriguez <tom.rodriguez@oracle.com> Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
97 lines
4.0 KiB
C++
97 lines
4.0 KiB
C++
/*
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* Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/javaCalls.hpp"
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#include "services/lowMemoryDetector.hpp"
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#include "services/management.hpp"
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#include "services/memoryManager.hpp"
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#include "services/psMemoryPool.hpp"
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PSGenerationPool::PSGenerationPool(PSOldGen* gen,
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const char* name,
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PoolType type,
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bool support_usage_threshold) :
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CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
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gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
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}
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MemoryUsage PSGenerationPool::get_memory_usage() {
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size_t maxSize = (available_for_allocation() ? max_size() : 0);
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size_t used = used_in_bytes();
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size_t committed = _gen->capacity_in_bytes();
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return MemoryUsage(initial_size(), used, committed, maxSize);
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}
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// The max size of EdenMutableSpacePool =
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// max size of the PSYoungGen - capacity of two survivor spaces
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//
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// Max size of PS eden space is changing due to ergonomic.
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// PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.
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//
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EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,
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MutableSpace* space,
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const char* name,
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PoolType type,
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bool support_usage_threshold) :
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CollectedMemoryPool(name, type, space->capacity_in_bytes(),
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(gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),
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support_usage_threshold),
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_gen(gen), _space(space) {
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}
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MemoryUsage EdenMutableSpacePool::get_memory_usage() {
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size_t maxSize = (available_for_allocation() ? max_size() : 0);
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size_t used = used_in_bytes();
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size_t committed = _space->capacity_in_bytes();
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return MemoryUsage(initial_size(), used, committed, maxSize);
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}
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// The max size of SurvivorMutableSpacePool =
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// current capacity of the from-space
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//
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// PS from and to survivor spaces could have different sizes.
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//
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SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,
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const char* name,
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PoolType type,
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bool support_usage_threshold) :
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CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),
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gen->from_space()->capacity_in_bytes(),
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support_usage_threshold), _gen(gen) {
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}
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MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {
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size_t maxSize = (available_for_allocation() ? max_size() : 0);
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size_t used = used_in_bytes();
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size_t committed = committed_in_bytes();
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return MemoryUsage(initial_size(), used, committed, maxSize);
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}
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