1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/vm/services/psMemoryPool.cpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,96 @@
1.4 +/*
1.5 + * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include "precompiled.hpp"
1.29 +#include "classfile/systemDictionary.hpp"
1.30 +#include "classfile/vmSymbols.hpp"
1.31 +#include "oops/oop.inline.hpp"
1.32 +#include "runtime/handles.inline.hpp"
1.33 +#include "runtime/javaCalls.hpp"
1.34 +#include "services/lowMemoryDetector.hpp"
1.35 +#include "services/management.hpp"
1.36 +#include "services/memoryManager.hpp"
1.37 +#include "services/psMemoryPool.hpp"
1.38 +
1.39 +PSGenerationPool::PSGenerationPool(PSOldGen* gen,
1.40 + const char* name,
1.41 + PoolType type,
1.42 + bool support_usage_threshold) :
1.43 + CollectedMemoryPool(name, type, gen->capacity_in_bytes(),
1.44 + gen->reserved().byte_size(), support_usage_threshold), _gen(gen) {
1.45 +}
1.46 +
1.47 +MemoryUsage PSGenerationPool::get_memory_usage() {
1.48 + size_t maxSize = (available_for_allocation() ? max_size() : 0);
1.49 + size_t used = used_in_bytes();
1.50 + size_t committed = _gen->capacity_in_bytes();
1.51 +
1.52 + return MemoryUsage(initial_size(), used, committed, maxSize);
1.53 +}
1.54 +
1.55 +// The max size of EdenMutableSpacePool =
1.56 +// max size of the PSYoungGen - capacity of two survivor spaces
1.57 +//
1.58 +// Max size of PS eden space is changing due to ergonomic.
1.59 +// PSYoungGen, PSOldGen, Eden, Survivor spaces are all resizable.
1.60 +//
1.61 +EdenMutableSpacePool::EdenMutableSpacePool(PSYoungGen* gen,
1.62 + MutableSpace* space,
1.63 + const char* name,
1.64 + PoolType type,
1.65 + bool support_usage_threshold) :
1.66 + CollectedMemoryPool(name, type, space->capacity_in_bytes(),
1.67 + (gen->max_size() - gen->from_space()->capacity_in_bytes() - gen->to_space()->capacity_in_bytes()),
1.68 + support_usage_threshold),
1.69 + _gen(gen), _space(space) {
1.70 +}
1.71 +
1.72 +MemoryUsage EdenMutableSpacePool::get_memory_usage() {
1.73 + size_t maxSize = (available_for_allocation() ? max_size() : 0);
1.74 + size_t used = used_in_bytes();
1.75 + size_t committed = _space->capacity_in_bytes();
1.76 +
1.77 + return MemoryUsage(initial_size(), used, committed, maxSize);
1.78 +}
1.79 +
1.80 +// The max size of SurvivorMutableSpacePool =
1.81 +// current capacity of the from-space
1.82 +//
1.83 +// PS from and to survivor spaces could have different sizes.
1.84 +//
1.85 +SurvivorMutableSpacePool::SurvivorMutableSpacePool(PSYoungGen* gen,
1.86 + const char* name,
1.87 + PoolType type,
1.88 + bool support_usage_threshold) :
1.89 + CollectedMemoryPool(name, type, gen->from_space()->capacity_in_bytes(),
1.90 + gen->from_space()->capacity_in_bytes(),
1.91 + support_usage_threshold), _gen(gen) {
1.92 +}
1.93 +
1.94 +MemoryUsage SurvivorMutableSpacePool::get_memory_usage() {
1.95 + size_t maxSize = (available_for_allocation() ? max_size() : 0);
1.96 + size_t used = used_in_bytes();
1.97 + size_t committed = committed_in_bytes();
1.98 + return MemoryUsage(initial_size(), used, committed, maxSize);
1.99 +}
