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1 /* | |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "wtf/allocator/Partitions.h" | |
32 | |
33 #include "base/allocator/partition_allocator/page_allocator.h" | |
34 #include "base/debug/alias.h" | |
35 #include "wtf/allocator/PartitionAllocator.h" | |
36 | |
37 namespace WTF { | |
38 | |
39 const char* const Partitions::kAllocatedObjectPoolName = | |
40 "partition_alloc/allocated_objects"; | |
41 | |
42 base::subtle::SpinLock Partitions::s_initializationLock; | |
43 bool Partitions::s_initialized = false; | |
44 | |
45 base::PartitionAllocatorGeneric Partitions::m_fastMallocAllocator; | |
46 base::PartitionAllocatorGeneric Partitions::m_arrayBufferAllocator; | |
47 base::PartitionAllocatorGeneric Partitions::m_bufferAllocator; | |
48 base::SizeSpecificPartitionAllocator<1024> Partitions::m_layoutAllocator; | |
49 Partitions::ReportPartitionAllocSizeFunction Partitions::m_reportSizeFunction = | |
50 nullptr; | |
51 | |
52 void Partitions::initialize( | |
53 ReportPartitionAllocSizeFunction reportSizeFunction) { | |
54 base::subtle::SpinLock::Guard guard(s_initializationLock); | |
55 | |
56 if (!s_initialized) { | |
57 base::PartitionAllocGlobalInit(&Partitions::handleOutOfMemory); | |
58 m_fastMallocAllocator.init(); | |
59 m_arrayBufferAllocator.init(); | |
60 m_bufferAllocator.init(); | |
61 m_layoutAllocator.init(); | |
62 m_reportSizeFunction = reportSizeFunction; | |
63 s_initialized = true; | |
64 } | |
65 } | |
66 | |
67 void Partitions::decommitFreeableMemory() { | |
68 RELEASE_ASSERT(isMainThread()); | |
69 if (!s_initialized) | |
70 return; | |
71 | |
72 PartitionPurgeMemoryGeneric(arrayBufferPartition(), | |
73 base::PartitionPurgeDecommitEmptyPages); | |
74 PartitionPurgeMemoryGeneric(bufferPartition(), | |
75 base::PartitionPurgeDecommitEmptyPages); | |
76 PartitionPurgeMemoryGeneric(fastMallocPartition(), | |
77 base::PartitionPurgeDecommitEmptyPages); | |
78 PartitionPurgeMemory(layoutPartition(), | |
79 base::PartitionPurgeDecommitEmptyPages); | |
80 } | |
81 | |
82 void Partitions::reportMemoryUsageHistogram() { | |
83 static size_t observedMaxSizeInMB = 0; | |
84 | |
85 if (!m_reportSizeFunction) | |
86 return; | |
87 // We only report the memory in the main thread. | |
88 if (!isMainThread()) | |
89 return; | |
90 // +1 is for rounding up the sizeInMB. | |
91 size_t sizeInMB = Partitions::totalSizeOfCommittedPages() / 1024 / 1024 + 1; | |
92 if (sizeInMB > observedMaxSizeInMB) { | |
93 m_reportSizeFunction(sizeInMB); | |
94 observedMaxSizeInMB = sizeInMB; | |
95 } | |
96 } | |
97 | |
98 void Partitions::dumpMemoryStats( | |
99 bool isLightDump, | |
100 base::PartitionStatsDumper* partitionStatsDumper) { | |
101 // Object model and rendering partitions are not thread safe and can be | |
102 // accessed only on the main thread. | |
103 DCHECK(isMainThread()); | |
104 | |
105 decommitFreeableMemory(); | |
106 PartitionDumpStatsGeneric(fastMallocPartition(), "fast_malloc", isLightDump, | |
107 partitionStatsDumper); | |
108 PartitionDumpStatsGeneric(arrayBufferPartition(), "array_buffer", isLightDump, | |
109 partitionStatsDumper); | |
110 PartitionDumpStatsGeneric(bufferPartition(), "buffer", isLightDump, | |
111 partitionStatsDumper); | |
112 PartitionDumpStats(layoutPartition(), "layout", isLightDump, | |
113 partitionStatsDumper); | |
114 } | |
115 | |
116 static NEVER_INLINE void partitionsOutOfMemoryUsing2G() { | |
117 size_t signature = 2UL * 1024 * 1024 * 1024; | |
118 base::debug::Alias(&signature); | |
119 OOM_CRASH(); | |
120 } | |
121 | |
122 static NEVER_INLINE void partitionsOutOfMemoryUsing1G() { | |
123 size_t signature = 1UL * 1024 * 1024 * 1024; | |
124 base::debug::Alias(&signature); | |
125 OOM_CRASH(); | |
126 } | |
127 | |
128 static NEVER_INLINE void partitionsOutOfMemoryUsing512M() { | |
129 size_t signature = 512 * 1024 * 1024; | |
130 base::debug::Alias(&signature); | |
131 OOM_CRASH(); | |
132 } | |
133 | |
134 static NEVER_INLINE void partitionsOutOfMemoryUsing256M() { | |
135 size_t signature = 256 * 1024 * 1024; | |
136 base::debug::Alias(&signature); | |
137 OOM_CRASH(); | |
138 } | |
139 | |
140 static NEVER_INLINE void partitionsOutOfMemoryUsing128M() { | |
141 size_t signature = 128 * 1024 * 1024; | |
142 base::debug::Alias(&signature); | |
143 OOM_CRASH(); | |
144 } | |
145 | |
146 static NEVER_INLINE void partitionsOutOfMemoryUsing64M() { | |
147 size_t signature = 64 * 1024 * 1024; | |
148 base::debug::Alias(&signature); | |
149 OOM_CRASH(); | |
150 } | |
151 | |
152 static NEVER_INLINE void partitionsOutOfMemoryUsing32M() { | |
153 size_t signature = 32 * 1024 * 1024; | |
154 base::debug::Alias(&signature); | |
155 OOM_CRASH(); | |
156 } | |
157 | |
158 static NEVER_INLINE void partitionsOutOfMemoryUsing16M() { | |
159 size_t signature = 16 * 1024 * 1024; | |
160 base::debug::Alias(&signature); | |
161 OOM_CRASH(); | |
162 } | |
163 | |
164 static NEVER_INLINE void partitionsOutOfMemoryUsingLessThan16M() { | |
165 size_t signature = 16 * 1024 * 1024 - 1; | |
166 base::debug::Alias(&signature); | |
167 DLOG(FATAL) << "ParitionAlloc: out of memory with < 16M usage (error:" | |
168 << GetAllocPageErrorCode() << ")"; | |
169 } | |
170 | |
171 void Partitions::handleOutOfMemory() { | |
172 volatile size_t totalUsage = totalSizeOfCommittedPages(); | |
173 uint32_t allocPageErrorCode = GetAllocPageErrorCode(); | |
174 base::debug::Alias(&allocPageErrorCode); | |
175 | |
176 if (totalUsage >= 2UL * 1024 * 1024 * 1024) | |
177 partitionsOutOfMemoryUsing2G(); | |
178 if (totalUsage >= 1UL * 1024 * 1024 * 1024) | |
179 partitionsOutOfMemoryUsing1G(); | |
180 if (totalUsage >= 512 * 1024 * 1024) | |
181 partitionsOutOfMemoryUsing512M(); | |
182 if (totalUsage >= 256 * 1024 * 1024) | |
183 partitionsOutOfMemoryUsing256M(); | |
184 if (totalUsage >= 128 * 1024 * 1024) | |
185 partitionsOutOfMemoryUsing128M(); | |
186 if (totalUsage >= 64 * 1024 * 1024) | |
187 partitionsOutOfMemoryUsing64M(); | |
188 if (totalUsage >= 32 * 1024 * 1024) | |
189 partitionsOutOfMemoryUsing32M(); | |
190 if (totalUsage >= 16 * 1024 * 1024) | |
191 partitionsOutOfMemoryUsing16M(); | |
192 partitionsOutOfMemoryUsingLessThan16M(); | |
193 } | |
194 | |
195 } // namespace WTF | |
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