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src/hotspot/share/services/memoryService.hpp

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rev 47957 : 8191564: Refactor GC related servicability code into GC specific subclasses
   1 /*
   2  * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
   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  *


  44 class CodeHeap;
  45 class ContiguousSpace;
  46 class CompactibleFreeListSpace;
  47 class GenCollectedHeap;
  48 class ParallelScavengeHeap;
  49 class G1CollectedHeap;
  50 
  51 // VM Monitoring and Management Support
  52 
  53 class MemoryService : public AllStatic {
  54 private:
  55   enum {
  56     init_pools_list_size = 10,
  57     init_managers_list_size = 5,
  58     init_code_heap_pools_size = 9
  59   };
  60 
  61   static GrowableArray<MemoryPool*>*    _pools_list;
  62   static GrowableArray<MemoryManager*>* _managers_list;
  63 
  64   // memory managers for minor and major GC statistics
  65   static GCMemoryManager*               _major_gc_manager;
  66   static GCMemoryManager*               _minor_gc_manager;
  67 
  68   // memory manager and code heap pools for the CodeCache
  69   static MemoryManager*                 _code_cache_manager;
  70   static GrowableArray<MemoryPool*>*    _code_heap_pools;
  71 
  72   static MemoryPool*                    _metaspace_pool;
  73   static MemoryPool*                    _compressed_class_pool;
  74 
  75   static void add_generation_memory_pool(Generation* gen,
  76                                          MemoryManager* major_mgr,
  77                                          MemoryManager* minor_mgr);
  78   static void add_generation_memory_pool(Generation* gen,
  79                                          MemoryManager* major_mgr) {
  80     add_generation_memory_pool(gen, major_mgr, NULL);
  81   }
  82 
  83 
  84   static void add_psYoung_memory_pool(PSYoungGen* young_gen,
  85                                       MemoryManager* major_mgr,
  86                                       MemoryManager* minor_mgr);
  87   static void add_psOld_memory_pool(PSOldGen* old_gen,
  88                                     MemoryManager* mgr);
  89 
  90   static void add_g1YoungGen_memory_pool(G1CollectedHeap* g1h,
  91                                          MemoryManager* major_mgr,
  92                                          MemoryManager* minor_mgr);
  93   static void add_g1OldGen_memory_pool(G1CollectedHeap* g1h,
  94                                        MemoryManager* mgr);
  95 
  96   static MemoryPool* add_space(ContiguousSpace* space,
  97                                const char* name,
  98                                bool is_heap,
  99                                size_t max_size,
 100                                bool support_usage_threshold);
 101   static MemoryPool* add_survivor_spaces(DefNewGeneration* young_gen,
 102                                          const char* name,
 103                                          bool is_heap,
 104                                          size_t max_size,
 105                                          bool support_usage_threshold);
 106   static MemoryPool* add_gen(Generation* gen,
 107                              const char* name,
 108                              bool is_heap,
 109                              bool support_usage_threshold);
 110   static MemoryPool* add_cms_space(CompactibleFreeListSpace* space,
 111                                    const char* name,
 112                                    bool is_heap,
 113                                    size_t max_size,
 114                                    bool support_usage_threshold);
 115 
 116   static void add_gen_collected_heap_info(GenCollectedHeap* heap);
 117   static void add_parallel_scavenge_heap_info(ParallelScavengeHeap* heap);
 118   static void add_g1_heap_info(G1CollectedHeap* g1h);
 119 
 120 public:
 121   static void set_universe_heap(CollectedHeap* heap);
 122   static void add_code_heap_memory_pool(CodeHeap* heap, const char* name);
 123   static void add_metaspace_memory_pools();
 124 
 125   static MemoryPool*    get_memory_pool(instanceHandle pool);
 126   static MemoryManager* get_memory_manager(instanceHandle mgr);
 127 
 128   static const int num_memory_pools() {
 129     return _pools_list->length();
 130   }
 131   static const int num_memory_managers() {
 132     return _managers_list->length();
 133   }
 134 
 135   static MemoryPool* get_memory_pool(int index) {
 136     return _pools_list->at(index);
 137   }
 138 
 139   static MemoryManager* get_memory_manager(int index) {
 140     return _managers_list->at(index);
 141   }
 142 
 143   static void track_memory_usage();
 144   static void track_code_cache_memory_usage() {
 145     // Track memory pool usage of all CodeCache memory pools
 146     for (int i = 0; i < _code_heap_pools->length(); ++i) {
 147       track_memory_pool_usage(_code_heap_pools->at(i));
 148     }
 149   }
 150   static void track_metaspace_memory_usage() {
 151     track_memory_pool_usage(_metaspace_pool);
 152   }
 153   static void track_compressed_class_memory_usage() {
 154     track_memory_pool_usage(_compressed_class_pool);
 155   }
 156   static void track_memory_pool_usage(MemoryPool* pool);
 157 
 158   static void gc_begin(bool fullGC, bool recordGCBeginTime,
 159                        bool recordAccumulatedGCTime,
 160                        bool recordPreGCUsage, bool recordPeakUsage);
 161   static void gc_end(bool fullGC, bool recordPostGCUsage,
 162                      bool recordAccumulatedGCTime,
 163                      bool recordGCEndTime, bool countCollection,
 164                      GCCause::Cause cause);
 165 
 166   static void oops_do(OopClosure* f);
 167 
 168   static bool get_verbose() { return log_is_enabled(Info, gc); }
 169   static bool set_verbose(bool verbose);
 170 
 171   // Create an instance of java/lang/management/MemoryUsage
 172   static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS);
 173 
 174   static const GCMemoryManager* get_minor_gc_manager() {
 175       return _minor_gc_manager;
 176   }
 177 
 178   static const GCMemoryManager* get_major_gc_manager() {
 179       return _major_gc_manager;
 180   }
 181 };
 182 
 183 class TraceMemoryManagerStats : public StackObj {
 184 private:
 185   bool         _fullGC;
 186   bool         _recordGCBeginTime;
 187   bool         _recordPreGCUsage;
 188   bool         _recordPeakUsage;
 189   bool         _recordPostGCUsage;
 190   bool         _recordAccumulatedGCTime;
 191   bool         _recordGCEndTime;
 192   bool         _countCollection;
 193   GCCause::Cause _cause;
 194 public:
 195   TraceMemoryManagerStats() {}
 196   TraceMemoryManagerStats(bool fullGC,
 197                           GCCause::Cause cause,
 198                           bool recordGCBeginTime = true,
 199                           bool recordPreGCUsage = true,
 200                           bool recordPeakUsage = true,
 201                           bool recordPostGCUsage = true,
 202                           bool recordAccumulatedGCTime = true,
 203                           bool recordGCEndTime = true,
 204                           bool countCollection = true);
 205 
 206   void initialize(bool fullGC,
 207                   GCCause::Cause cause,
 208                   bool recordGCBeginTime,
 209                   bool recordPreGCUsage,
 210                   bool recordPeakUsage,
 211                   bool recordPostGCUsage,
 212                   bool recordAccumulatedGCTime,
 213                   bool recordGCEndTime,
 214                   bool countCollection);
 215 
 216   TraceMemoryManagerStats(Generation::Name kind, GCCause::Cause cause);
 217   ~TraceMemoryManagerStats();
 218 };
 219 
 220 #endif // SHARE_VM_SERVICES_MEMORYSERVICE_HPP
   1 /*
   2  * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
   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  *


  44 class CodeHeap;
  45 class ContiguousSpace;
  46 class CompactibleFreeListSpace;
  47 class GenCollectedHeap;
  48 class ParallelScavengeHeap;
  49 class G1CollectedHeap;
  50 
  51 // VM Monitoring and Management Support
  52 
  53 class MemoryService : public AllStatic {
  54 private:
  55   enum {
  56     init_pools_list_size = 10,
  57     init_managers_list_size = 5,
  58     init_code_heap_pools_size = 9
  59   };
  60 
  61   static GrowableArray<MemoryPool*>*    _pools_list;
  62   static GrowableArray<MemoryManager*>* _managers_list;
  63 




  64   // memory manager and code heap pools for the CodeCache
  65   static MemoryManager*                 _code_cache_manager;
  66   static GrowableArray<MemoryPool*>*    _code_heap_pools;
  67 
  68   static MemoryPool*                    _metaspace_pool;
  69   static MemoryPool*                    _compressed_class_pool;
  70 













































  71 public:
  72   static void set_universe_heap(CollectedHeap* heap);
  73   static void add_code_heap_memory_pool(CodeHeap* heap, const char* name);
  74   static void add_metaspace_memory_pools();
  75 
  76   static MemoryPool*    get_memory_pool(instanceHandle pool);
  77   static MemoryManager* get_memory_manager(instanceHandle mgr);
  78 
  79   static const int num_memory_pools() {
  80     return _pools_list->length();
  81   }
  82   static const int num_memory_managers() {
  83     return _managers_list->length();
  84   }
  85 
  86   static MemoryPool* get_memory_pool(int index) {
  87     return _pools_list->at(index);
  88   }
  89 
  90   static MemoryManager* get_memory_manager(int index) {
  91     return _managers_list->at(index);
  92   }
  93 
  94   static void track_memory_usage();
  95   static void track_code_cache_memory_usage() {
  96     // Track memory pool usage of all CodeCache memory pools
  97     for (int i = 0; i < _code_heap_pools->length(); ++i) {
  98       track_memory_pool_usage(_code_heap_pools->at(i));
  99     }
 100   }
 101   static void track_metaspace_memory_usage() {
 102     track_memory_pool_usage(_metaspace_pool);
 103   }
 104   static void track_compressed_class_memory_usage() {
 105     track_memory_pool_usage(_compressed_class_pool);
 106   }
 107   static void track_memory_pool_usage(MemoryPool* pool);
 108 
 109   static void gc_begin(GCMemoryManager* mgr, bool recordGCBeginTime,
 110                        bool recordAccumulatedGCTime,
 111                        bool recordPreGCUsage, bool recordPeakUsage);
 112   static void gc_end(GCMemoryManager* mgr, bool recordPostGCUsage,
 113                      bool recordAccumulatedGCTime,
 114                      bool recordGCEndTime, bool countCollection,
 115                      GCCause::Cause cause);
 116 
 117   static void oops_do(OopClosure* f);
 118 
 119   static bool get_verbose() { return log_is_enabled(Info, gc); }
 120   static bool set_verbose(bool verbose);
 121 
 122   // Create an instance of java/lang/management/MemoryUsage
 123   static Handle create_MemoryUsage_obj(MemoryUsage usage, TRAPS);








 124 };
 125 
 126 class TraceMemoryManagerStats : public StackObj {
 127 private:
 128   GCMemoryManager* _gc_mem_mgr;
 129   bool         _recordGCBeginTime;
 130   bool         _recordPreGCUsage;
 131   bool         _recordPeakUsage;
 132   bool         _recordPostGCUsage;
 133   bool         _recordAccumulatedGCTime;
 134   bool         _recordGCEndTime;
 135   bool         _countCollection;
 136   GCCause::Cause _cause;
 137 public:
 138   TraceMemoryManagerStats() {}
 139   TraceMemoryManagerStats(GCMemoryManager* gc_mem_mgr,
 140                           GCCause::Cause cause,
 141                           bool recordGCBeginTime = true,
 142                           bool recordPreGCUsage = true,
 143                           bool recordPeakUsage = true,
 144                           bool recordPostGCUsage = true,
 145                           bool recordAccumulatedGCTime = true,
 146                           bool recordGCEndTime = true,
 147                           bool countCollection = true);
 148 
 149   void initialize(GCMemoryManager* gc_mem_mgr,
 150                   GCCause::Cause cause,
 151                   bool recordGCBeginTime,
 152                   bool recordPreGCUsage,
 153                   bool recordPeakUsage,
 154                   bool recordPostGCUsage,
 155                   bool recordAccumulatedGCTime,
 156                   bool recordGCEndTime,
 157                   bool countCollection);
 158 

 159   ~TraceMemoryManagerStats();
 160 };
 161 
 162 #endif // SHARE_VM_SERVICES_MEMORYSERVICE_HPP
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