/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
#include "precompiled.hpp"
#include "classfile/systemDictionary.hpp"
#include "classfile/vmSymbols.hpp"
#include "gc_implementation/parallelScavenge/psPermGen.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/handles.inline.hpp"
#include "runtime/javaCalls.hpp"
#include "services/lowMemoryDetector.hpp"
#include "services/management.hpp"
#include "services/memoryManager.hpp"
#include "services/psMemoryPool.hpp"
PSGenerationPool::PSGenerationPool(PSOldGen* gen,
const char* name,
PoolType type,
bool support_usage_threshold) :
CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
}
PSGenerationPool::PSGenerationPool(PSPermGen* gen,
const char* name,
PoolType type,
bool support_usage_threshold) :
CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
}
MemoryUsage PSGenerationPool::get_memory_usage() {
size_t maxSize = (available_for_allocation() ? max_size() : 0);
size_t used = used_in_bytes();
size_t committed = _gen->capacity_in_bytes();
return MemoryUsage(initial_size(), used, committed, maxSize);
}
// The max size of EdenMutableSpacePool =
// max size of the PSYoungGen - capacity of two survivor spaces
//
// Max size of PS eden space is changing due to ergonomic.
// PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.
//
EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,
MutableSpace* space,
const char* name,
PoolType type,
bool support_usage_threshold) :
CollectedMemoryPool(name, type, space->capacity_in_bytes(),
(gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),
support_usage_threshold),
_gen(gen), _space(space) {
}
MemoryUsage EdenMutableSpacePool::get_memory_usage() {
size_t maxSize = (available_for_allocation() ? max_size() : 0);
size_t used = used_in_bytes();
size_t committed = _space->capacity_in_bytes();
return MemoryUsage(initial_size(), used, committed, maxSize);
}
// The max size of SurvivorMutableSpacePool =
// current capacity of the from-space
//
// PS from and to survivor spaces could have different sizes.
//
SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,
const char* name,
PoolType type,
bool support_usage_threshold) :
CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),
gen->from_space()->capacity_in_bytes(),
support_usage_threshold), _gen(gen) {
}
MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {
size_t maxSize = (available_for_allocation() ? max_size() : 0);
size_t used = used_in_bytes();
size_t committed = committed_in_bytes();
return MemoryUsage(initial_size(), used, committed, maxSize);
}