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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "components/tracing/process_metrics_memory_dump_provider.h" | |
| 6 | |
| 7 #include <stdint.h> | |
| 8 | |
| 9 #include <memory> | |
| 10 | |
| 11 #include "base/files/file_util.h" | |
| 12 #include "base/trace_event/process_memory_dump.h" | |
| 13 #include "base/trace_event/process_memory_maps.h" | |
| 14 #include "base/trace_event/process_memory_totals.h" | |
| 15 #include "base/trace_event/trace_event_argument.h" | |
| 16 #include "testing/gtest/include/gtest/gtest.h" | |
| 17 | |
| 18 namespace tracing { | |
| 19 | |
| 20 #if defined(OS_LINUX) || defined(OS_ANDROID) | |
| 21 namespace { | |
| 22 const char kTestSmaps1[] = | |
| 23 "00400000-004be000 r-xp 00000000 fc:01 1234 /file/1\n" | |
| 24 "Size: 760 kB\n" | |
| 25 "Rss: 296 kB\n" | |
| 26 "Pss: 162 kB\n" | |
| 27 "Shared_Clean: 228 kB\n" | |
| 28 "Shared_Dirty: 0 kB\n" | |
| 29 "Private_Clean: 0 kB\n" | |
| 30 "Private_Dirty: 68 kB\n" | |
| 31 "Referenced: 296 kB\n" | |
| 32 "Anonymous: 68 kB\n" | |
| 33 "AnonHugePages: 0 kB\n" | |
| 34 "Swap: 4 kB\n" | |
| 35 "KernelPageSize: 4 kB\n" | |
| 36 "MMUPageSize: 4 kB\n" | |
| 37 "Locked: 0 kB\n" | |
| 38 "VmFlags: rd ex mr mw me dw sd\n" | |
| 39 "ff000000-ff800000 -w-p 00001080 fc:01 0 /file/name with space\n" | |
| 40 "Size: 0 kB\n" | |
| 41 "Rss: 192 kB\n" | |
| 42 "Pss: 128 kB\n" | |
| 43 "Shared_Clean: 120 kB\n" | |
| 44 "Shared_Dirty: 4 kB\n" | |
| 45 "Private_Clean: 60 kB\n" | |
| 46 "Private_Dirty: 8 kB\n" | |
| 47 "Referenced: 296 kB\n" | |
| 48 "Anonymous: 0 kB\n" | |
| 49 "AnonHugePages: 0 kB\n" | |
| 50 "Swap: 0 kB\n" | |
| 51 "KernelPageSize: 4 kB\n" | |
| 52 "MMUPageSize: 4 kB\n" | |
| 53 "Locked: 0 kB\n" | |
| 54 "VmFlags: rd ex mr mw me dw sd"; | |
| 55 | |
| 56 const char kTestSmaps2[] = | |
| 57 // An invalid region, with zero size and overlapping with the last one | |
| 58 // (See crbug.com/461237). | |
| 59 "7fe7ce79c000-7fe7ce79c000 ---p 00000000 00:00 0 \n" | |
| 60 "Size: 4 kB\n" | |
| 61 "Rss: 0 kB\n" | |
| 62 "Pss: 0 kB\n" | |
| 63 "Shared_Clean: 0 kB\n" | |
| 64 "Shared_Dirty: 0 kB\n" | |
| 65 "Private_Clean: 0 kB\n" | |
| 66 "Private_Dirty: 0 kB\n" | |
| 67 "Referenced: 0 kB\n" | |
| 68 "Anonymous: 0 kB\n" | |
| 69 "AnonHugePages: 0 kB\n" | |
| 70 "Swap: 0 kB\n" | |
| 71 "KernelPageSize: 4 kB\n" | |
| 72 "MMUPageSize: 4 kB\n" | |
| 73 "Locked: 0 kB\n" | |
| 74 "VmFlags: rd ex mr mw me dw sd\n" | |
| 75 // A invalid region with its range going backwards. | |
| 76 "00400000-00200000 ---p 00000000 00:00 0 \n" | |
| 77 "Size: 4 kB\n" | |
| 78 "Rss: 0 kB\n" | |
| 79 "Pss: 0 kB\n" | |
| 80 "Shared_Clean: 0 kB\n" | |
| 81 "Shared_Dirty: 0 kB\n" | |
| 82 "Private_Clean: 0 kB\n" | |
| 83 "Private_Dirty: 0 kB\n" | |
| 84 "Referenced: 0 kB\n" | |
| 85 "Anonymous: 0 kB\n" | |
| 86 "AnonHugePages: 0 kB\n" | |
| 87 "Swap: 0 kB\n" | |
| 88 "KernelPageSize: 4 kB\n" | |
| 89 "MMUPageSize: 4 kB\n" | |
| 90 "Locked: 0 kB\n" | |
| 91 "VmFlags: rd ex mr mw me dw sd\n" | |
| 92 // A good anonymous region at the end. | |
| 93 "7fe7ce79c000-7fe7ce7a8000 ---p 00000000 00:00 0 \n" | |
| 94 "Size: 48 kB\n" | |
| 95 "Rss: 40 kB\n" | |
| 96 "Pss: 32 kB\n" | |
| 97 "Shared_Clean: 16 kB\n" | |
| 98 "Shared_Dirty: 12 kB\n" | |
| 99 "Private_Clean: 8 kB\n" | |
| 100 "Private_Dirty: 4 kB\n" | |
| 101 "Referenced: 40 kB\n" | |
| 102 "Anonymous: 16 kB\n" | |
| 103 "AnonHugePages: 0 kB\n" | |
| 104 "Swap: 0 kB\n" | |
| 105 "KernelPageSize: 4 kB\n" | |
| 106 "MMUPageSize: 4 kB\n" | |
| 107 "Locked: 0 kB\n" | |
| 108 "VmFlags: rd wr mr mw me ac sd\n"; | |
| 109 | |
| 110 void CreateAndSetSmapsFileForTesting(const char* smaps_string, | |
| 111 base::ScopedFILE& file) { | |
| 112 base::FilePath temp_path; | |
| 113 FILE* temp_file = CreateAndOpenTemporaryFile(&temp_path); | |
| 114 file.reset(temp_file); | |
| 115 ASSERT_TRUE(temp_file); | |
| 116 | |
| 117 ASSERT_TRUE(base::WriteFileDescriptor(fileno(temp_file), smaps_string, | |
| 118 strlen(smaps_string))); | |
| 119 } | |
| 120 | |
| 121 } // namespace | |
| 122 #endif // defined(OS_LINUX) || defined(OS_ANDROID) | |
| 123 | |
| 124 TEST(ProcessMetricsMemoryDumpProviderTest, DumpRSS) { | |
| 125 const base::trace_event::MemoryDumpArgs high_detail_args = { | |
| 126 base::trace_event::MemoryDumpLevelOfDetail::DETAILED}; | |
| 127 std::unique_ptr<ProcessMetricsMemoryDumpProvider> pmtdp( | |
| 128 new ProcessMetricsMemoryDumpProvider(base::kNullProcessId)); | |
| 129 std::unique_ptr<base::trace_event::ProcessMemoryDump> pmd_before( | |
| 130 new base::trace_event::ProcessMemoryDump(nullptr)); | |
| 131 std::unique_ptr<base::trace_event::ProcessMemoryDump> pmd_after( | |
| 132 new base::trace_event::ProcessMemoryDump(nullptr)); | |
| 133 | |
| 134 ProcessMetricsMemoryDumpProvider::rss_bytes_for_testing = 1024; | |
| 135 pmtdp->OnMemoryDump(high_detail_args, pmd_before.get()); | |
| 136 | |
| 137 // Pretend that the RSS of the process increased of +1M. | |
| 138 const size_t kAllocSize = 1048576; | |
| 139 ProcessMetricsMemoryDumpProvider::rss_bytes_for_testing += kAllocSize; | |
| 140 | |
| 141 pmtdp->OnMemoryDump(high_detail_args, pmd_after.get()); | |
| 142 | |
| 143 ProcessMetricsMemoryDumpProvider::rss_bytes_for_testing = 0; | |
| 144 | |
| 145 ASSERT_TRUE(pmd_before->has_process_totals()); | |
| 146 ASSERT_TRUE(pmd_after->has_process_totals()); | |
| 147 | |
| 148 const uint64_t rss_before = | |
| 149 pmd_before->process_totals()->resident_set_bytes(); | |
| 150 const uint64_t rss_after = pmd_after->process_totals()->resident_set_bytes(); | |
| 151 | |
| 152 EXPECT_NE(0U, rss_before); | |
| 153 EXPECT_NE(0U, rss_after); | |
| 154 | |
| 155 EXPECT_EQ(rss_after - rss_before, kAllocSize); | |
| 156 } | |
| 157 | |
| 158 #if defined(OS_LINUX) || defined(OS_ANDROID) | |
| 159 TEST(ProcessMetricsMemoryDumpProviderTest, ParseProcSmaps) { | |
| 160 const uint32_t kProtR = | |
| 161 base::trace_event::ProcessMemoryMaps::VMRegion::kProtectionFlagsRead; | |
| 162 const uint32_t kProtW = | |
| 163 base::trace_event::ProcessMemoryMaps::VMRegion::kProtectionFlagsWrite; | |
| 164 const uint32_t kProtX = | |
| 165 base::trace_event::ProcessMemoryMaps::VMRegion::kProtectionFlagsExec; | |
| 166 const base::trace_event::MemoryDumpArgs dump_args = { | |
| 167 base::trace_event::MemoryDumpLevelOfDetail::DETAILED}; | |
| 168 | |
| 169 std::unique_ptr<ProcessMetricsMemoryDumpProvider> pmmdp( | |
| 170 new ProcessMetricsMemoryDumpProvider(base::kNullProcessId)); | |
| 171 | |
| 172 // Emulate an empty /proc/self/smaps. | |
| 173 base::trace_event::ProcessMemoryDump pmd_invalid(nullptr /* session_state */); | |
| 174 base::ScopedFILE empty_file(OpenFile(base::FilePath("/dev/null"), "r")); | |
| 175 ASSERT_TRUE(empty_file.get()); | |
| 176 ProcessMetricsMemoryDumpProvider::proc_smaps_for_testing = empty_file.get(); | |
| 177 pmmdp->OnMemoryDump(dump_args, &pmd_invalid); | |
| 178 ASSERT_FALSE(pmd_invalid.has_process_mmaps()); | |
| 179 | |
| 180 // Parse the 1st smaps file. | |
| 181 base::trace_event::ProcessMemoryDump pmd_1(nullptr /* session_state */); | |
| 182 base::ScopedFILE temp_file1; | |
| 183 CreateAndSetSmapsFileForTesting(kTestSmaps1, temp_file1); | |
| 184 ProcessMetricsMemoryDumpProvider::proc_smaps_for_testing = temp_file1.get(); | |
| 185 pmmdp->OnMemoryDump(dump_args, &pmd_1); | |
| 186 ASSERT_TRUE(pmd_1.has_process_mmaps()); | |
| 187 const auto& regions_1 = pmd_1.process_mmaps()->vm_regions(); | |
| 188 ASSERT_EQ(2UL, regions_1.size()); | |
| 189 | |
| 190 EXPECT_EQ(0x00400000UL, regions_1[0].start_address); | |
| 191 EXPECT_EQ(0x004be000UL - 0x00400000UL, regions_1[0].size_in_bytes); | |
| 192 EXPECT_EQ(kProtR | kProtX, regions_1[0].protection_flags); | |
| 193 EXPECT_EQ("/file/1", regions_1[0].mapped_file); | |
| 194 EXPECT_EQ(162 * 1024UL, regions_1[0].byte_stats_proportional_resident); | |
| 195 EXPECT_EQ(228 * 1024UL, regions_1[0].byte_stats_shared_clean_resident); | |
| 196 EXPECT_EQ(0UL, regions_1[0].byte_stats_shared_dirty_resident); | |
| 197 EXPECT_EQ(0UL, regions_1[0].byte_stats_private_clean_resident); | |
| 198 EXPECT_EQ(68 * 1024UL, regions_1[0].byte_stats_private_dirty_resident); | |
| 199 EXPECT_EQ(4 * 1024UL, regions_1[0].byte_stats_swapped); | |
| 200 | |
| 201 EXPECT_EQ(0xff000000UL, regions_1[1].start_address); | |
| 202 EXPECT_EQ(0xff800000UL - 0xff000000UL, regions_1[1].size_in_bytes); | |
| 203 EXPECT_EQ(kProtW, regions_1[1].protection_flags); | |
| 204 EXPECT_EQ("/file/name with space", regions_1[1].mapped_file); | |
| 205 EXPECT_EQ(128 * 1024UL, regions_1[1].byte_stats_proportional_resident); | |
| 206 EXPECT_EQ(120 * 1024UL, regions_1[1].byte_stats_shared_clean_resident); | |
| 207 EXPECT_EQ(4 * 1024UL, regions_1[1].byte_stats_shared_dirty_resident); | |
| 208 EXPECT_EQ(60 * 1024UL, regions_1[1].byte_stats_private_clean_resident); | |
| 209 EXPECT_EQ(8 * 1024UL, regions_1[1].byte_stats_private_dirty_resident); | |
| 210 EXPECT_EQ(0 * 1024UL, regions_1[1].byte_stats_swapped); | |
| 211 | |
| 212 // Parse the 2nd smaps file. | |
| 213 base::trace_event::ProcessMemoryDump pmd_2(nullptr /* session_state */); | |
| 214 base::ScopedFILE temp_file2; | |
| 215 CreateAndSetSmapsFileForTesting(kTestSmaps2, temp_file2); | |
| 216 ProcessMetricsMemoryDumpProvider::proc_smaps_for_testing = temp_file2.get(); | |
| 217 pmmdp->OnMemoryDump(dump_args, &pmd_2); | |
| 218 ASSERT_TRUE(pmd_2.has_process_mmaps()); | |
| 219 const auto& regions_2 = pmd_2.process_mmaps()->vm_regions(); | |
| 220 ASSERT_EQ(1UL, regions_2.size()); | |
| 221 EXPECT_EQ(0x7fe7ce79c000UL, regions_2[0].start_address); | |
| 222 EXPECT_EQ(0x7fe7ce7a8000UL - 0x7fe7ce79c000UL, regions_2[0].size_in_bytes); | |
| 223 EXPECT_EQ(0U, regions_2[0].protection_flags); | |
| 224 EXPECT_EQ("", regions_2[0].mapped_file); | |
| 225 EXPECT_EQ(32 * 1024UL, regions_2[0].byte_stats_proportional_resident); | |
| 226 EXPECT_EQ(16 * 1024UL, regions_2[0].byte_stats_shared_clean_resident); | |
| 227 EXPECT_EQ(12 * 1024UL, regions_2[0].byte_stats_shared_dirty_resident); | |
| 228 EXPECT_EQ(8 * 1024UL, regions_2[0].byte_stats_private_clean_resident); | |
| 229 EXPECT_EQ(4 * 1024UL, regions_2[0].byte_stats_private_dirty_resident); | |
| 230 EXPECT_EQ(0 * 1024UL, regions_2[0].byte_stats_swapped); | |
| 231 } | |
| 232 #endif // defined(OS_LINUX) || defined(OS_ANDROID) | |
| 233 | |
| 234 } // namespace tracing | |
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Chromium Code Reviews
Issue 2028043002:
tracing: restructure to the components/tracing folder (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master