1 /* 2 * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "gc/serial/defNewGeneration.hpp" 27 #include "gc/serial/serialGCServicabilitySupport.hpp" 28 #include "gc/shared/genCollectedHeap.hpp" 29 #include "services/memoryManager.hpp" 30 #include "services/memoryPool.hpp" 31 32 class CopyMemoryManager : public GCMemoryManager { 33 private: 34 public: 35 CopyMemoryManager() : GCMemoryManager() {} 36 37 const char* name() { return "Copy"; } 38 }; 39 40 class MSCMemoryManager : public GCMemoryManager { 41 private: 42 public: 43 MSCMemoryManager() : GCMemoryManager() {} 44 45 const char* name() { return "MarkSweepCompact"; } 46 }; 47 48 GCMemoryManager* SerialGCServicabilitySupport::create_minor_gc_manager() { 49 return new CopyMemoryManager(); 50 } 51 52 GCMemoryManager* SerialGCServicabilitySupport::create_major_gc_manager() { 53 return new MSCMemoryManager(); 54 } 55 56 void SerialGCServicabilitySupport::add_memory_pools(GrowableArray<MemoryPool*>* pools_list, 57 GCMemoryManager* minor_mgr, 58 GCMemoryManager* major_mgr) { 59 GenCollectedHeap* heap = GenCollectedHeap::heap(); 60 DefNewGeneration* young_gen = (DefNewGeneration*) heap->young_gen(); 61 62 // Add a memory pool for each space and young gen doesn't 63 // support low memory detection as it is expected to get filled up. 64 MemoryPool* eden = new ContiguousSpacePool(young_gen->eden(), 65 "Eden Space", 66 MemoryPool::Heap, 67 young_gen->max_eden_size(), 68 false /* support_usage_threshold */); 69 MemoryPool* survivor = new SurvivorContiguousSpacePool(young_gen, 70 "Survivor Space", 71 MemoryPool::Heap, 72 young_gen->max_survivor_size(), 73 false /* support_usage_threshold */); 74 GenerationPool* old = new GenerationPool(heap->old_gen(), "Tenured Gen", MemoryPool::Heap, true); 75 76 pools_list->append(eden); 77 pools_list->append(survivor); 78 pools_list->append(old); 79 80 minor_mgr->add_pool(eden); 81 minor_mgr->add_pool(survivor); 82 83 major_mgr->add_pool(eden); 84 major_mgr->add_pool(survivor); 85 major_mgr->add_pool(old); 86 }