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134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/*
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* Copyright (c) 2021, 2022, 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 "gc/g1/g1CardSetContainers.inline.hpp"
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#include "gc/g1/g1CardSetMemory.inline.hpp"
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#include "gc/g1/g1MonotonicArena.inline.hpp"
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#include "runtime/atomic.hpp"
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#include "utilities/ostream.hpp"
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G1CardSetAllocator::G1CardSetAllocator(const char* name,
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const G1CardSetAllocOptions* alloc_options,
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SegmentFreeList* segment_free_list) :
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_arena(alloc_options, segment_free_list),
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_free_slots_list(name, &_arena)
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{
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uint slot_size = _arena.slot_size();
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assert(slot_size >= sizeof(G1CardSetContainer), "Slot instance size %u for allocator %s too small", slot_size, name);
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}
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G1CardSetAllocator::~G1CardSetAllocator() {
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drop_all();
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}
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void G1CardSetAllocator::free(void* slot) {
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assert(slot != nullptr, "precondition");
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_free_slots_list.release(slot);
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}
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void G1CardSetAllocator::drop_all() {
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_free_slots_list.reset();
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_arena.drop_all();
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}
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size_t G1CardSetAllocator::mem_size() const {
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return sizeof(*this) +
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num_segments() * sizeof(Segment) +
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_arena.num_total_slots() * _arena.slot_size();
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}
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size_t G1CardSetAllocator::unused_mem_size() const {
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uint num_unused_slots = (_arena.num_total_slots() - _arena.num_allocated_slots()) +
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(uint)_free_slots_list.free_count();
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return num_unused_slots * _arena.slot_size();
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}
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uint G1CardSetAllocator::num_segments() const {
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return _arena.num_segments();
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}
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G1CardSetMemoryManager::G1CardSetMemoryManager(G1CardSetConfiguration* config,
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G1CardSetFreePool* free_list_pool) : _config(config) {
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_allocators = NEW_C_HEAP_ARRAY(G1CardSetAllocator,
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_config->num_mem_object_types(),
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mtGC);
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for (uint i = 0; i < num_mem_object_types(); i++) {
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new (&_allocators[i]) G1CardSetAllocator(_config->mem_object_type_name_str(i),
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_config->mem_object_alloc_options(i),
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free_list_pool->free_list(i));
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}
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}
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uint G1CardSetMemoryManager::num_mem_object_types() const {
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return _config->num_mem_object_types();
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}
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G1CardSetMemoryManager::~G1CardSetMemoryManager() {
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for (uint i = 0; i < num_mem_object_types(); i++) {
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_allocators[i].~G1CardSetAllocator();
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}
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FREE_C_HEAP_ARRAY(G1CardSetAllocator<G1CardSetContainer>, _allocators);
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}
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void G1CardSetMemoryManager::free(uint type, void* value) {
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assert(type < num_mem_object_types(), "must be");
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_allocators[type].free(value);
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}
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void G1CardSetMemoryManager::flush() {
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for (uint i = 0; i < num_mem_object_types(); i++) {
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_allocators[i].drop_all();
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}
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}
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size_t G1CardSetMemoryManager::mem_size() const {
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size_t result = 0;
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for (uint i = 0; i < num_mem_object_types(); i++) {
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result += _allocators[i].mem_size();
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}
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return sizeof(*this) + result -
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(sizeof(G1CardSetAllocator) * num_mem_object_types());
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}
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size_t G1CardSetMemoryManager::unused_mem_size() const {
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size_t result = 0;
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for (uint i = 0; i < num_mem_object_types(); i++) {
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result += _allocators[i].unused_mem_size();
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}
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return result;
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}
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G1MonotonicArenaMemoryStats G1CardSetMemoryManager::memory_stats() const {
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G1MonotonicArenaMemoryStats result;
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for (uint i = 0; i < num_mem_object_types(); i++) {
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result._num_mem_sizes[i] += _allocators[i].mem_size();
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result._num_segments[i] += _allocators[i].num_segments();
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}
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return result;
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}
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