44 */
45 class MemBaseline VALUE_OBJ_CLASS_SPEC {
46 public:
47 enum BaselineThreshold {
48 SIZE_THRESHOLD = K // Only allocation size over this threshold will be baselined.
49 };
50
51 enum BaselineType {
52 Not_baselined,
53 Summary_baselined,
54 Detail_baselined
55 };
56
57 enum SortingOrder {
58 by_address, // by memory address
59 by_size, // by memory size
60 by_site // by call site where the memory is allocated from
61 };
62
63 private:
64 // All baseline data is stored in this arena
65 Arena* _arena;
66
67 // Summary information
68 MallocMemorySnapshot* _malloc_memory_snapshot;
69 VirtualMemorySnapshot* _virtual_memory_snapshot;
70
71 size_t _class_count;
72
73 // Allocation sites information
74 // Malloc allocation sites
75 LinkedListImpl<MallocSite, ResourceObj::ARENA>
76 _malloc_sites;
77
78 // All virtual memory allocations
79 LinkedListImpl<ReservedMemoryRegion, ResourceObj::ARENA>
80 _virtual_memory_allocations;
81
82 // Virtual memory allocations by allocation sites, always in by_address
83 // order
84 LinkedListImpl<VirtualMemoryAllocationSite, ResourceObj::ARENA>
85 _virtual_memory_sites;
86
87 SortingOrder _malloc_sites_order;
88 SortingOrder _virtual_memory_sites_order;
89
90 BaselineType _baseline_type;
91
92 public:
93 // create a memory baseline
94 MemBaseline():
95 _baseline_type(Not_baselined),
96 _class_count(0),
97 _arena(NULL),
98 _malloc_memory_snapshot(NULL),
99 _virtual_memory_snapshot(NULL),
100 _malloc_sites(NULL) {
101 }
102
103 ~MemBaseline() {
104 reset();
105 if (_arena != NULL) {
106 delete _arena;
107 }
108 }
109
110 bool baseline(bool summaryOnly = true);
111
112 BaselineType baseline_type() const { return _baseline_type; }
113
114 MallocMemorySnapshot* malloc_memory_snapshot() const {
115 return _malloc_memory_snapshot;
116 }
117
118 VirtualMemorySnapshot* virtual_memory_snapshot() const {
119 return _virtual_memory_snapshot;
120 }
121
122 MallocSiteIterator malloc_sites(SortingOrder order);
123 VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order);
124
125 // Virtual memory allocation iterator always returns in virtual memory
126 // base address order.
127 VirtualMemoryAllocationIterator virtual_memory_allocations() {
128 assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline");
129 return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head());
130 }
131
132 // Total reserved memory = total malloc'd memory + total reserved virtual
133 // memory
134 size_t total_reserved_memory() const {
135 assert(baseline_type() != Not_baselined, "Not yet baselined");
136 assert(_virtual_memory_snapshot != NULL, "No virtual memory snapshot");
137 assert(_malloc_memory_snapshot != NULL, "No malloc memory snapshot");
138 size_t amount = _malloc_memory_snapshot->total() +
139 _virtual_memory_snapshot->total_reserved();
140 return amount;
141 }
142
143 // Total committed memory = total malloc'd memory + total committed
144 // virtual memory
145 size_t total_committed_memory() const {
146 assert(baseline_type() != Not_baselined, "Not yet baselined");
147 assert(_virtual_memory_snapshot != NULL,
148 "Not a snapshot");
149 size_t amount = _malloc_memory_snapshot->total() +
150 _virtual_memory_snapshot->total_committed();
151 return amount;
152 }
153
154 size_t total_arena_memory() const {
155 assert(baseline_type() != Not_baselined, "Not yet baselined");
156 assert(_malloc_memory_snapshot != NULL, "Not yet baselined");
157 return _malloc_memory_snapshot->total_arena();
158 }
159
160 size_t malloc_tracking_overhead() const {
161 assert(baseline_type() != Not_baselined, "Not yet baselined");
162 return _malloc_memory_snapshot->malloc_overhead()->size();
163 }
164
165 const MallocMemory* malloc_memory(MEMFLAGS flag) const {
166 assert(_malloc_memory_snapshot != NULL, "Not a snapshot");
167 return _malloc_memory_snapshot->by_type(flag);
168 }
169
170 const VirtualMemory* virtual_memory(MEMFLAGS flag) const {
171 assert(_virtual_memory_snapshot != NULL, "Not a snapshot");
172 return _virtual_memory_snapshot->by_type(flag);
173 }
174
175
176 size_t class_count() const {
177 assert(baseline_type() != Not_baselined, "Not yet baselined");
178 return _class_count;
179 }
180
181 size_t thread_count() const {
182 assert(baseline_type() != Not_baselined, "Not yet baselined");
183 assert(_malloc_memory_snapshot != NULL, "Baselined?");
184 return _malloc_memory_snapshot->thread_count();
185 }
186
187 // reset the baseline for reuse
188 void reset() {
189 _baseline_type = Not_baselined;
190 _malloc_memory_snapshot = NULL;
191 _virtual_memory_snapshot = NULL;
192 _class_count = 0;
193
194 _malloc_sites = NULL;
195 _virtual_memory_sites = NULL;
196 _virtual_memory_allocations = NULL;
197
198 if (_arena != NULL) {
199 _arena->destruct_contents();
200 }
201 }
202
203 private:
204 // Baseline summary information
205 bool baseline_summary();
206
207 // Baseline allocation sites (detail tracking only)
208 bool baseline_allocation_sites();
209
210 // Aggregate virtual memory allocation by allocation sites
211 bool aggregate_virtual_memory_allocation_sites();
212
213 Arena* arena() { return _arena; }
214
215 // Sorting allocation sites in different orders
216 // Sort allocation sites in size order
217 void malloc_sites_to_size_order();
218 // Sort allocation sites in call site address order
219 void malloc_sites_to_allocation_site_order();
220
221 // Sort allocation sites in reserved size order
222 void virtual_memory_sites_to_size_order();
223 // Sort allocation sites in call site address order
224 void virtual_memory_sites_to_reservation_site_order();
225 };
226
227 #endif // INCLUDE_NMT
228
229 #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP
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44 */
45 class MemBaseline VALUE_OBJ_CLASS_SPEC {
46 public:
47 enum BaselineThreshold {
48 SIZE_THRESHOLD = K // Only allocation size over this threshold will be baselined.
49 };
50
51 enum BaselineType {
52 Not_baselined,
53 Summary_baselined,
54 Detail_baselined
55 };
56
57 enum SortingOrder {
58 by_address, // by memory address
59 by_size, // by memory size
60 by_site // by call site where the memory is allocated from
61 };
62
63 private:
64 // Summary information
65 MallocMemorySnapshot _malloc_memory_snapshot;
66 VirtualMemorySnapshot _virtual_memory_snapshot;
67
68 size_t _class_count;
69
70 // Allocation sites information
71 // Malloc allocation sites
72 LinkedListImpl<MallocSite> _malloc_sites;
73
74 // All virtual memory allocations
75 LinkedListImpl<ReservedMemoryRegion> _virtual_memory_allocations;
76
77 // Virtual memory allocations by allocation sites, always in by_address
78 // order
79 LinkedListImpl<VirtualMemoryAllocationSite> _virtual_memory_sites;
80
81 SortingOrder _malloc_sites_order;
82 SortingOrder _virtual_memory_sites_order;
83
84 BaselineType _baseline_type;
85
86 public:
87 // create a memory baseline
88 MemBaseline():
89 _baseline_type(Not_baselined),
90 _class_count(0) {
91 }
92
93 ~MemBaseline() {
94 reset();
95 }
96
97 bool baseline(bool summaryOnly = true);
98
99 BaselineType baseline_type() const { return _baseline_type; }
100
101 MallocMemorySnapshot* malloc_memory_snapshot() {
102 return &_malloc_memory_snapshot;
103 }
104
105 VirtualMemorySnapshot* virtual_memory_snapshot() {
106 return &_virtual_memory_snapshot;
107 }
108
109 MallocSiteIterator malloc_sites(SortingOrder order);
110 VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order);
111
112 // Virtual memory allocation iterator always returns in virtual memory
113 // base address order.
114 VirtualMemoryAllocationIterator virtual_memory_allocations() {
115 assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline");
116 return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head());
117 }
118
119 // Total reserved memory = total malloc'd memory + total reserved virtual
120 // memory
121 size_t total_reserved_memory() const {
122 assert(baseline_type() != Not_baselined, "Not yet baselined");
123 size_t amount = _malloc_memory_snapshot.total() +
124 _virtual_memory_snapshot.total_reserved();
125 return amount;
126 }
127
128 // Total committed memory = total malloc'd memory + total committed
129 // virtual memory
130 size_t total_committed_memory() const {
131 assert(baseline_type() != Not_baselined, "Not yet baselined");
132 size_t amount = _malloc_memory_snapshot.total() +
133 _virtual_memory_snapshot.total_committed();
134 return amount;
135 }
136
137 size_t total_arena_memory() const {
138 assert(baseline_type() != Not_baselined, "Not yet baselined");
139 return _malloc_memory_snapshot.total_arena();
140 }
141
142 size_t malloc_tracking_overhead() const {
143 assert(baseline_type() != Not_baselined, "Not yet baselined");
144 MemBaseline* bl = const_cast<MemBaseline*>(this);
145 return bl->_malloc_memory_snapshot.malloc_overhead()->size();
146 }
147
148 MallocMemory* malloc_memory(MEMFLAGS flag) {
149 assert(baseline_type() != Not_baselined, "Not yet baselined");
150 return _malloc_memory_snapshot.by_type(flag);
151 }
152
153 VirtualMemory* virtual_memory(MEMFLAGS flag) {
154 assert(baseline_type() != Not_baselined, "Not yet baselined");
155 return _virtual_memory_snapshot.by_type(flag);
156 }
157
158
159 size_t class_count() const {
160 assert(baseline_type() != Not_baselined, "Not yet baselined");
161 return _class_count;
162 }
163
164 size_t thread_count() const {
165 assert(baseline_type() != Not_baselined, "Not yet baselined");
166 return _malloc_memory_snapshot.thread_count();
167 }
168
169 // reset the baseline for reuse
170 void reset() {
171 _baseline_type = Not_baselined;
172 _malloc_memory_snapshot.reset();
173 _virtual_memory_snapshot.reset();
174 _class_count = 0;
175
176 _malloc_sites.clear();
177 _virtual_memory_sites.clear();
178 _virtual_memory_allocations.clear();
179 }
180
181 private:
182 // Baseline summary information
183 bool baseline_summary();
184
185 // Baseline allocation sites (detail tracking only)
186 bool baseline_allocation_sites();
187
188 // Aggregate virtual memory allocation by allocation sites
189 bool aggregate_virtual_memory_allocation_sites();
190
191 // Sorting allocation sites in different orders
192 // Sort allocation sites in size order
193 void malloc_sites_to_size_order();
194 // Sort allocation sites in call site address order
195 void malloc_sites_to_allocation_site_order();
196
197 // Sort allocation sites in reserved size order
198 void virtual_memory_sites_to_size_order();
199 // Sort allocation sites in call site address order
200 void virtual_memory_sites_to_reservation_site_order();
201 };
202
203 #endif // INCLUDE_NMT
204
205 #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP
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