Wed, 03 Jul 2019 20:42:37 +0800
Merge
1 /*
2 * Copyright (c) 2012, 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 *
23 */
25 #ifndef SHARE_VM_SERVICES_MEM_BASELINE_HPP
26 #define SHARE_VM_SERVICES_MEM_BASELINE_HPP
28 #if INCLUDE_NMT
30 #include "memory/allocation.hpp"
31 #include "runtime/mutex.hpp"
32 #include "services/mallocSiteTable.hpp"
33 #include "services/mallocTracker.hpp"
34 #include "services/nmtCommon.hpp"
35 #include "services/virtualMemoryTracker.hpp"
36 #include "utilities/linkedlist.hpp"
38 typedef LinkedListIterator<MallocSite> MallocSiteIterator;
39 typedef LinkedListIterator<VirtualMemoryAllocationSite> VirtualMemorySiteIterator;
40 typedef LinkedListIterator<ReservedMemoryRegion> VirtualMemoryAllocationIterator;
42 /*
43 * Baseline a memory snapshot
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 };
51 enum BaselineType {
52 Not_baselined,
53 Summary_baselined,
54 Detail_baselined
55 };
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 by_site_and_type // by call site and memory type
62 };
64 private:
65 // Summary information
66 MallocMemorySnapshot _malloc_memory_snapshot;
67 VirtualMemorySnapshot _virtual_memory_snapshot;
69 size_t _class_count;
71 // Allocation sites information
72 // Malloc allocation sites
73 LinkedListImpl<MallocSite> _malloc_sites;
75 // All virtual memory allocations
76 LinkedListImpl<ReservedMemoryRegion> _virtual_memory_allocations;
78 // Virtual memory allocations by allocation sites, always in by_address
79 // order
80 LinkedListImpl<VirtualMemoryAllocationSite> _virtual_memory_sites;
82 SortingOrder _malloc_sites_order;
83 SortingOrder _virtual_memory_sites_order;
85 BaselineType _baseline_type;
87 public:
88 // create a memory baseline
89 MemBaseline():
90 _baseline_type(Not_baselined),
91 _class_count(0) {
92 }
94 bool baseline(bool summaryOnly = true);
96 BaselineType baseline_type() const { return _baseline_type; }
98 MallocMemorySnapshot* malloc_memory_snapshot() {
99 return &_malloc_memory_snapshot;
100 }
102 VirtualMemorySnapshot* virtual_memory_snapshot() {
103 return &_virtual_memory_snapshot;
104 }
106 MallocSiteIterator malloc_sites(SortingOrder order);
107 VirtualMemorySiteIterator virtual_memory_sites(SortingOrder order);
109 // Virtual memory allocation iterator always returns in virtual memory
110 // base address order.
111 VirtualMemoryAllocationIterator virtual_memory_allocations() {
112 assert(!_virtual_memory_allocations.is_empty(), "Not detail baseline");
113 return VirtualMemoryAllocationIterator(_virtual_memory_allocations.head());
114 }
116 // Total reserved memory = total malloc'd memory + total reserved virtual
117 // memory
118 size_t total_reserved_memory() const {
119 assert(baseline_type() != Not_baselined, "Not yet baselined");
120 size_t amount = _malloc_memory_snapshot.total() +
121 _virtual_memory_snapshot.total_reserved();
122 return amount;
123 }
125 // Total committed memory = total malloc'd memory + total committed
126 // virtual memory
127 size_t total_committed_memory() const {
128 assert(baseline_type() != Not_baselined, "Not yet baselined");
129 size_t amount = _malloc_memory_snapshot.total() +
130 _virtual_memory_snapshot.total_committed();
131 return amount;
132 }
134 size_t total_arena_memory() const {
135 assert(baseline_type() != Not_baselined, "Not yet baselined");
136 return _malloc_memory_snapshot.total_arena();
137 }
139 size_t malloc_tracking_overhead() const {
140 assert(baseline_type() != Not_baselined, "Not yet baselined");
141 MemBaseline* bl = const_cast<MemBaseline*>(this);
142 return bl->_malloc_memory_snapshot.malloc_overhead()->size();
143 }
145 MallocMemory* malloc_memory(MEMFLAGS flag) {
146 assert(baseline_type() != Not_baselined, "Not yet baselined");
147 return _malloc_memory_snapshot.by_type(flag);
148 }
150 VirtualMemory* virtual_memory(MEMFLAGS flag) {
151 assert(baseline_type() != Not_baselined, "Not yet baselined");
152 return _virtual_memory_snapshot.by_type(flag);
153 }
156 size_t class_count() const {
157 assert(baseline_type() != Not_baselined, "Not yet baselined");
158 return _class_count;
159 }
161 size_t thread_count() const {
162 assert(baseline_type() != Not_baselined, "Not yet baselined");
163 return _malloc_memory_snapshot.thread_count();
164 }
166 // reset the baseline for reuse
167 void reset() {
168 _baseline_type = Not_baselined;
169 // _malloc_memory_snapshot and _virtual_memory_snapshot are copied over.
170 _class_count = 0;
172 _malloc_sites.clear();
173 _virtual_memory_sites.clear();
174 _virtual_memory_allocations.clear();
175 }
177 private:
178 // Baseline summary information
179 bool baseline_summary();
181 // Baseline allocation sites (detail tracking only)
182 bool baseline_allocation_sites();
184 // Aggregate virtual memory allocation by allocation sites
185 bool aggregate_virtual_memory_allocation_sites();
187 // Sorting allocation sites in different orders
188 // Sort allocation sites in size order
189 void malloc_sites_to_size_order();
190 // Sort allocation sites in call site address order
191 void malloc_sites_to_allocation_site_order();
192 // Sort allocation sites in call site address and memory type order
193 void malloc_sites_to_allocation_site_and_type_order();
195 // Sort allocation sites in reserved size order
196 void virtual_memory_sites_to_size_order();
197 // Sort allocation sites in call site address order
198 void virtual_memory_sites_to_reservation_site_order();
199 };
201 #endif // INCLUDE_NMT
203 #endif // SHARE_VM_SERVICES_MEM_BASELINE_HPP