| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/process/process_metrics.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <sstream> |
| #include <string> |
| #include <vector> |
| |
| #include "base/bind.h" |
| #include "base/command_line.h" |
| #include "base/files/file.h" |
| #include "base/files/file_util.h" |
| #include "base/files/scoped_temp_dir.h" |
| #include "base/macros.h" |
| #include "base/memory/shared_memory.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/sys_info.h" |
| #include "base/test/multiprocess_test.h" |
| #include "base/threading/thread.h" |
| #include "build/build_config.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "testing/multiprocess_func_list.h" |
| |
| #if defined(OS_MACOSX) |
| #include <sys/mman.h> |
| #endif |
| |
| namespace base { |
| namespace debug { |
| |
| #if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_WIN) |
| namespace { |
| |
| void BusyWork(std::vector<std::string>* vec) { |
| int64_t test_value = 0; |
| for (int i = 0; i < 100000; ++i) { |
| ++test_value; |
| vec->push_back(Int64ToString(test_value)); |
| } |
| } |
| |
| } // namespace |
| #endif // defined(OS_LINUX) || defined(OS_CHROMEOS) |
| |
| // Tests for SystemMetrics. |
| // Exists as a class so it can be a friend of SystemMetrics. |
| class SystemMetricsTest : public testing::Test { |
| public: |
| SystemMetricsTest() = default; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(SystemMetricsTest); |
| }; |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| TEST_F(SystemMetricsTest, IsValidDiskName) { |
| const char invalid_input1[] = ""; |
| const char invalid_input2[] = "s"; |
| const char invalid_input3[] = "sdz+"; |
| const char invalid_input4[] = "hda0"; |
| const char invalid_input5[] = "mmcbl"; |
| const char invalid_input6[] = "mmcblka"; |
| const char invalid_input7[] = "mmcblkb"; |
| const char invalid_input8[] = "mmmblk0"; |
| |
| EXPECT_FALSE(IsValidDiskName(invalid_input1)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input2)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input3)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input4)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input5)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input6)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input7)); |
| EXPECT_FALSE(IsValidDiskName(invalid_input8)); |
| |
| const char valid_input1[] = "sda"; |
| const char valid_input2[] = "sdaaaa"; |
| const char valid_input3[] = "hdz"; |
| const char valid_input4[] = "mmcblk0"; |
| const char valid_input5[] = "mmcblk999"; |
| |
| EXPECT_TRUE(IsValidDiskName(valid_input1)); |
| EXPECT_TRUE(IsValidDiskName(valid_input2)); |
| EXPECT_TRUE(IsValidDiskName(valid_input3)); |
| EXPECT_TRUE(IsValidDiskName(valid_input4)); |
| EXPECT_TRUE(IsValidDiskName(valid_input5)); |
| } |
| |
| TEST_F(SystemMetricsTest, ParseMeminfo) { |
| SystemMemoryInfoKB meminfo; |
| const char invalid_input1[] = "abc"; |
| const char invalid_input2[] = "MemTotal:"; |
| // Partial file with no MemTotal |
| const char invalid_input3[] = |
| "MemFree: 3913968 kB\n" |
| "Buffers: 2348340 kB\n" |
| "Cached: 49071596 kB\n" |
| "SwapCached: 12 kB\n" |
| "Active: 36393900 kB\n" |
| "Inactive: 21221496 kB\n" |
| "Active(anon): 5674352 kB\n" |
| "Inactive(anon): 633992 kB\n"; |
| EXPECT_FALSE(ParseProcMeminfo(invalid_input1, &meminfo)); |
| EXPECT_FALSE(ParseProcMeminfo(invalid_input2, &meminfo)); |
| EXPECT_FALSE(ParseProcMeminfo(invalid_input3, &meminfo)); |
| |
| const char valid_input1[] = |
| "MemTotal: 3981504 kB\n" |
| "MemFree: 140764 kB\n" |
| "MemAvailable: 535413 kB\n" |
| "Buffers: 116480 kB\n" |
| "Cached: 406160 kB\n" |
| "SwapCached: 21304 kB\n" |
| "Active: 3152040 kB\n" |
| "Inactive: 472856 kB\n" |
| "Active(anon): 2972352 kB\n" |
| "Inactive(anon): 270108 kB\n" |
| "Active(file): 179688 kB\n" |
| "Inactive(file): 202748 kB\n" |
| "Unevictable: 0 kB\n" |
| "Mlocked: 0 kB\n" |
| "SwapTotal: 5832280 kB\n" |
| "SwapFree: 3672368 kB\n" |
| "Dirty: 184 kB\n" |
| "Writeback: 0 kB\n" |
| "AnonPages: 3101224 kB\n" |
| "Mapped: 142296 kB\n" |
| "Shmem: 140204 kB\n" |
| "Slab: 54212 kB\n" |
| "SReclaimable: 30936 kB\n" |
| "SUnreclaim: 23276 kB\n" |
| "KernelStack: 2464 kB\n" |
| "PageTables: 24812 kB\n" |
| "NFS_Unstable: 0 kB\n" |
| "Bounce: 0 kB\n" |
| "WritebackTmp: 0 kB\n" |
| "CommitLimit: 7823032 kB\n" |
| "Committed_AS: 7973536 kB\n" |
| "VmallocTotal: 34359738367 kB\n" |
| "VmallocUsed: 375940 kB\n" |
| "VmallocChunk: 34359361127 kB\n" |
| "DirectMap4k: 72448 kB\n" |
| "DirectMap2M: 4061184 kB\n"; |
| // output from a much older kernel where the Active and Inactive aren't |
| // broken down into anon and file and Huge Pages are enabled |
| const char valid_input2[] = |
| "MemTotal: 255908 kB\n" |
| "MemFree: 69936 kB\n" |
| "Buffers: 15812 kB\n" |
| "Cached: 115124 kB\n" |
| "SwapCached: 0 kB\n" |
| "Active: 92700 kB\n" |
| "Inactive: 63792 kB\n" |
| "HighTotal: 0 kB\n" |
| "HighFree: 0 kB\n" |
| "LowTotal: 255908 kB\n" |
| "LowFree: 69936 kB\n" |
| "SwapTotal: 524280 kB\n" |
| "SwapFree: 524200 kB\n" |
| "Dirty: 4 kB\n" |
| "Writeback: 0 kB\n" |
| "Mapped: 42236 kB\n" |
| "Slab: 25912 kB\n" |
| "Committed_AS: 118680 kB\n" |
| "PageTables: 1236 kB\n" |
| "VmallocTotal: 3874808 kB\n" |
| "VmallocUsed: 1416 kB\n" |
| "VmallocChunk: 3872908 kB\n" |
| "HugePages_Total: 0\n" |
| "HugePages_Free: 0\n" |
| "Hugepagesize: 4096 kB\n"; |
| |
| EXPECT_TRUE(ParseProcMeminfo(valid_input1, &meminfo)); |
| EXPECT_EQ(meminfo.total, 3981504); |
| EXPECT_EQ(meminfo.free, 140764); |
| EXPECT_EQ(meminfo.available, 535413); |
| EXPECT_EQ(meminfo.buffers, 116480); |
| EXPECT_EQ(meminfo.cached, 406160); |
| EXPECT_EQ(meminfo.active_anon, 2972352); |
| EXPECT_EQ(meminfo.active_file, 179688); |
| EXPECT_EQ(meminfo.inactive_anon, 270108); |
| EXPECT_EQ(meminfo.inactive_file, 202748); |
| EXPECT_EQ(meminfo.swap_total, 5832280); |
| EXPECT_EQ(meminfo.swap_free, 3672368); |
| EXPECT_EQ(meminfo.dirty, 184); |
| EXPECT_EQ(meminfo.reclaimable, 30936); |
| #if defined(OS_CHROMEOS) |
| EXPECT_EQ(meminfo.shmem, 140204); |
| EXPECT_EQ(meminfo.slab, 54212); |
| #endif |
| EXPECT_EQ(355725, |
| base::SysInfo::AmountOfAvailablePhysicalMemory(meminfo) / 1024); |
| // Simulate as if there is no MemAvailable. |
| meminfo.available = 0; |
| EXPECT_EQ(374448, |
| base::SysInfo::AmountOfAvailablePhysicalMemory(meminfo) / 1024); |
| meminfo = {}; |
| EXPECT_TRUE(ParseProcMeminfo(valid_input2, &meminfo)); |
| EXPECT_EQ(meminfo.total, 255908); |
| EXPECT_EQ(meminfo.free, 69936); |
| EXPECT_EQ(meminfo.available, 0); |
| EXPECT_EQ(meminfo.buffers, 15812); |
| EXPECT_EQ(meminfo.cached, 115124); |
| EXPECT_EQ(meminfo.swap_total, 524280); |
| EXPECT_EQ(meminfo.swap_free, 524200); |
| EXPECT_EQ(meminfo.dirty, 4); |
| EXPECT_EQ(69936, |
| base::SysInfo::AmountOfAvailablePhysicalMemory(meminfo) / 1024); |
| } |
| |
| TEST_F(SystemMetricsTest, ParseVmstat) { |
| VmStatInfo vmstat; |
| // part of vmstat from a 3.2 kernel with numa enabled |
| const char valid_input1[] = |
| "nr_free_pages 905104\n" |
| "nr_inactive_anon 142478" |
| "nr_active_anon 1520046\n" |
| "nr_inactive_file 4481001\n" |
| "nr_active_file 8313439\n" |
| "nr_unevictable 5044\n" |
| "nr_mlock 5044\n" |
| "nr_anon_pages 1633780\n" |
| "nr_mapped 104742\n" |
| "nr_file_pages 12828218\n" |
| "nr_dirty 245\n" |
| "nr_writeback 0\n" |
| "nr_slab_reclaimable 831609\n" |
| "nr_slab_unreclaimable 41164\n" |
| "nr_page_table_pages 31470\n" |
| "nr_kernel_stack 1735\n" |
| "nr_unstable 0\n" |
| "nr_bounce 0\n" |
| "nr_vmscan_write 406\n" |
| "nr_vmscan_immediate_reclaim 281\n" |
| "nr_writeback_temp 0\n" |
| "nr_isolated_anon 0\n" |
| "nr_isolated_file 0\n" |
| "nr_shmem 28820\n" |
| "nr_dirtied 84674644\n" |
| "nr_written 75307109\n" |
| "nr_anon_transparent_hugepages 0\n" |
| "nr_dirty_threshold 1536206\n" |
| "nr_dirty_background_threshold 768103\n" |
| "pgpgin 30777108\n" |
| "pgpgout 319023278\n" |
| "pswpin 179\n" |
| "pswpout 406\n" |
| "pgalloc_dma 0\n" |
| "pgalloc_dma32 20833399\n" |
| "pgalloc_normal 1622609290\n" |
| "pgalloc_movable 0\n" |
| "pgfree 1644355583\n" |
| "pgactivate 75391882\n" |
| "pgdeactivate 4121019\n" |
| "pgfault 2542879679\n" |
| "pgmajfault 487192\n"; |
| const char valid_input2[] = |
| "nr_free_pages 180125\n" |
| "nr_inactive_anon 51\n" |
| "nr_active_anon 38832\n" |
| "nr_inactive_file 50171\n" |
| "nr_active_file 47510\n" |
| "nr_unevictable 0\n" |
| "nr_mlock 0\n" |
| "nr_anon_pages 38825\n" |
| "nr_mapped 24043\n" |
| "nr_file_pages 97733\n" |
| "nr_dirty 0\n" |
| "nr_writeback 0\n" |
| "nr_slab_reclaimable 4032\n" |
| "nr_slab_unreclaimable 2848\n" |
| "nr_page_table_pages 1505\n" |
| "nr_kernel_stack 626\n" |
| "nr_unstable 0\n" |
| "nr_bounce 0\n" |
| "nr_vmscan_write 0\n" |
| "nr_vmscan_immediate_reclaim 0\n" |
| "nr_writeback_temp 0\n" |
| "nr_isolated_anon 0\n" |
| "nr_isolated_file 0\n" |
| "nr_shmem 58\n" |
| "nr_dirtied 435358\n" |
| "nr_written 401258\n" |
| "nr_anon_transparent_hugepages 0\n" |
| "nr_dirty_threshold 18566\n" |
| "nr_dirty_background_threshold 4641\n" |
| "pgpgin 299464\n" |
| "pgpgout 2437788\n" |
| "pswpin 12\n" |
| "pswpout 901\n" |
| "pgalloc_normal 144213030\n" |
| "pgalloc_high 164501274\n" |
| "pgalloc_movable 0\n" |
| "pgfree 308894908\n" |
| "pgactivate 239320\n" |
| "pgdeactivate 1\n" |
| "pgfault 716044601\n" |
| "pgmajfault 2023\n" |
| "pgrefill_normal 0\n" |
| "pgrefill_high 0\n" |
| "pgrefill_movable 0\n"; |
| EXPECT_TRUE(ParseProcVmstat(valid_input1, &vmstat)); |
| EXPECT_EQ(179LU, vmstat.pswpin); |
| EXPECT_EQ(406LU, vmstat.pswpout); |
| EXPECT_EQ(487192LU, vmstat.pgmajfault); |
| EXPECT_TRUE(ParseProcVmstat(valid_input2, &vmstat)); |
| EXPECT_EQ(12LU, vmstat.pswpin); |
| EXPECT_EQ(901LU, vmstat.pswpout); |
| EXPECT_EQ(2023LU, vmstat.pgmajfault); |
| |
| const char missing_pgmajfault_input[] = |
| "pswpin 12\n" |
| "pswpout 901\n"; |
| EXPECT_FALSE(ParseProcVmstat(missing_pgmajfault_input, &vmstat)); |
| const char empty_input[] = ""; |
| EXPECT_FALSE(ParseProcVmstat(empty_input, &vmstat)); |
| } |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| #if defined(OS_LINUX) || defined(OS_CHROMEOS) || defined(OS_WIN) |
| |
| // Test that ProcessMetrics::GetPlatformIndependentCPUUsage() doesn't return |
| // negative values when the number of threads running on the process decreases |
| // between two successive calls to it. |
| TEST_F(SystemMetricsTest, TestNoNegativeCpuUsage) { |
| ProcessHandle handle = GetCurrentProcessHandle(); |
| std::unique_ptr<ProcessMetrics> metrics( |
| ProcessMetrics::CreateProcessMetrics(handle)); |
| |
| EXPECT_GE(metrics->GetPlatformIndependentCPUUsage(), 0.0); |
| Thread thread1("thread1"); |
| Thread thread2("thread2"); |
| Thread thread3("thread3"); |
| |
| thread1.StartAndWaitForTesting(); |
| thread2.StartAndWaitForTesting(); |
| thread3.StartAndWaitForTesting(); |
| |
| ASSERT_TRUE(thread1.IsRunning()); |
| ASSERT_TRUE(thread2.IsRunning()); |
| ASSERT_TRUE(thread3.IsRunning()); |
| |
| std::vector<std::string> vec1; |
| std::vector<std::string> vec2; |
| std::vector<std::string> vec3; |
| |
| thread1.task_runner()->PostTask(FROM_HERE, BindOnce(&BusyWork, &vec1)); |
| thread2.task_runner()->PostTask(FROM_HERE, BindOnce(&BusyWork, &vec2)); |
| thread3.task_runner()->PostTask(FROM_HERE, BindOnce(&BusyWork, &vec3)); |
| |
| TimeDelta prev_cpu_usage = metrics->GetCumulativeCPUUsage(); |
| EXPECT_GE(prev_cpu_usage, TimeDelta()); |
| EXPECT_GE(metrics->GetPlatformIndependentCPUUsage(), 0.0); |
| |
| thread1.Stop(); |
| TimeDelta current_cpu_usage = metrics->GetCumulativeCPUUsage(); |
| EXPECT_GE(current_cpu_usage, prev_cpu_usage); |
| prev_cpu_usage = current_cpu_usage; |
| EXPECT_GE(metrics->GetPlatformIndependentCPUUsage(), 0.0); |
| |
| thread2.Stop(); |
| current_cpu_usage = metrics->GetCumulativeCPUUsage(); |
| EXPECT_GE(current_cpu_usage, prev_cpu_usage); |
| prev_cpu_usage = current_cpu_usage; |
| EXPECT_GE(metrics->GetPlatformIndependentCPUUsage(), 0.0); |
| |
| thread3.Stop(); |
| current_cpu_usage = metrics->GetCumulativeCPUUsage(); |
| EXPECT_GE(current_cpu_usage, prev_cpu_usage); |
| EXPECT_GE(metrics->GetPlatformIndependentCPUUsage(), 0.0); |
| } |
| |
| #endif // defined(OS_LINUX) || defined(OS_CHROMEOS) |
| |
| #if defined(OS_CHROMEOS) |
| TEST_F(SystemMetricsTest, ParseZramMmStat) { |
| SwapInfo swapinfo; |
| |
| const char invalid_input1[] = "aaa"; |
| const char invalid_input2[] = "1 2 3 4 5 6"; |
| const char invalid_input3[] = "a 2 3 4 5 6 7"; |
| EXPECT_FALSE(ParseZramMmStat(invalid_input1, &swapinfo)); |
| EXPECT_FALSE(ParseZramMmStat(invalid_input2, &swapinfo)); |
| EXPECT_FALSE(ParseZramMmStat(invalid_input3, &swapinfo)); |
| |
| const char valid_input1[] = |
| "17715200 5008166 566062 0 1225715712 127 183842"; |
| EXPECT_TRUE(ParseZramMmStat(valid_input1, &swapinfo)); |
| EXPECT_EQ(17715200ULL, swapinfo.orig_data_size); |
| EXPECT_EQ(5008166ULL, swapinfo.compr_data_size); |
| EXPECT_EQ(566062ULL, swapinfo.mem_used_total); |
| } |
| |
| TEST_F(SystemMetricsTest, ParseZramStat) { |
| SwapInfo swapinfo; |
| |
| const char invalid_input1[] = "aaa"; |
| const char invalid_input2[] = "1 2 3 4 5 6 7 8 9 10"; |
| const char invalid_input3[] = "a 2 3 4 5 6 7 8 9 10 11"; |
| EXPECT_FALSE(ParseZramStat(invalid_input1, &swapinfo)); |
| EXPECT_FALSE(ParseZramStat(invalid_input2, &swapinfo)); |
| EXPECT_FALSE(ParseZramStat(invalid_input3, &swapinfo)); |
| |
| const char valid_input1[] = |
| "299 0 2392 0 1 0 8 0 0 0 0"; |
| EXPECT_TRUE(ParseZramStat(valid_input1, &swapinfo)); |
| EXPECT_EQ(299ULL, swapinfo.num_reads); |
| EXPECT_EQ(1ULL, swapinfo.num_writes); |
| } |
| #endif // defined(OS_CHROMEOS) |
| |
| #if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX) || \ |
| defined(OS_ANDROID) |
| TEST(SystemMetrics2Test, GetSystemMemoryInfo) { |
| SystemMemoryInfoKB info; |
| EXPECT_TRUE(GetSystemMemoryInfo(&info)); |
| |
| // Ensure each field received a value. |
| EXPECT_GT(info.total, 0); |
| #if defined(OS_WIN) |
| EXPECT_GT(info.avail_phys, 0); |
| #else |
| EXPECT_GT(info.free, 0); |
| #endif |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| EXPECT_GT(info.buffers, 0); |
| EXPECT_GT(info.cached, 0); |
| EXPECT_GT(info.active_anon, 0); |
| EXPECT_GT(info.inactive_anon, 0); |
| EXPECT_GT(info.active_file, 0); |
| EXPECT_GT(info.inactive_file, 0); |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| // All the values should be less than the total amount of memory. |
| #if !defined(OS_WIN) && !defined(OS_IOS) |
| // TODO(crbug.com/711450): re-enable the following assertion on iOS. |
| EXPECT_LT(info.free, info.total); |
| #endif |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| EXPECT_LT(info.buffers, info.total); |
| EXPECT_LT(info.cached, info.total); |
| EXPECT_LT(info.active_anon, info.total); |
| EXPECT_LT(info.inactive_anon, info.total); |
| EXPECT_LT(info.active_file, info.total); |
| EXPECT_LT(info.inactive_file, info.total); |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| #if defined(OS_MACOSX) || defined(OS_IOS) |
| EXPECT_GT(info.file_backed, 0); |
| #endif |
| |
| #if defined(OS_CHROMEOS) |
| // Chrome OS exposes shmem. |
| EXPECT_GT(info.shmem, 0); |
| EXPECT_LT(info.shmem, info.total); |
| // Chrome unit tests are not run on actual Chrome OS hardware, so gem_objects |
| // and gem_size cannot be tested here. |
| #endif |
| } |
| #endif // defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX) || |
| // defined(OS_ANDROID) |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| TEST(ProcessMetricsTest, ParseProcStatCPU) { |
| // /proc/self/stat for a process running "top". |
| const char kTopStat[] = "960 (top) S 16230 960 16230 34818 960 " |
| "4202496 471 0 0 0 " |
| "12 16 0 0 " // <- These are the goods. |
| "20 0 1 0 121946157 15077376 314 18446744073709551615 4194304 " |
| "4246868 140733983044336 18446744073709551615 140244213071219 " |
| "0 0 0 138047495 0 0 0 17 1 0 0 0 0 0"; |
| EXPECT_EQ(12 + 16, ParseProcStatCPU(kTopStat)); |
| |
| // cat /proc/self/stat on a random other machine I have. |
| const char kSelfStat[] = "5364 (cat) R 5354 5364 5354 34819 5364 " |
| "0 142 0 0 0 " |
| "0 0 0 0 " // <- No CPU, apparently. |
| "16 0 1 0 1676099790 2957312 114 4294967295 134512640 134528148 " |
| "3221224832 3221224344 3086339742 0 0 0 0 0 0 0 17 0 0 0"; |
| |
| EXPECT_EQ(0, ParseProcStatCPU(kSelfStat)); |
| |
| // Some weird long-running process with a weird name that I created for the |
| // purposes of this test. |
| const char kWeirdNameStat[] = "26115 (Hello) You ())) ) R 24614 26115 24614" |
| " 34839 26115 4218880 227 0 0 0 " |
| "5186 11 0 0 " |
| "20 0 1 0 36933953 4296704 90 18446744073709551615 4194304 4196116 " |
| "140735857761568 140735857761160 4195644 0 0 0 0 0 0 0 17 14 0 0 0 0 0 " |
| "6295056 6295616 16519168 140735857770710 140735857770737 " |
| "140735857770737 140735857774557 0"; |
| EXPECT_EQ(5186 + 11, ParseProcStatCPU(kWeirdNameStat)); |
| } |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| // Disable on Android because base_unittests runs inside a Dalvik VM that |
| // starts and stop threads (crbug.com/175563). |
| #if defined(OS_LINUX) |
| // http://crbug.com/396455 |
| TEST(ProcessMetricsTest, DISABLED_GetNumberOfThreads) { |
| const ProcessHandle current = GetCurrentProcessHandle(); |
| const int initial_threads = GetNumberOfThreads(current); |
| ASSERT_GT(initial_threads, 0); |
| const int kNumAdditionalThreads = 10; |
| { |
| std::unique_ptr<Thread> my_threads[kNumAdditionalThreads]; |
| for (int i = 0; i < kNumAdditionalThreads; ++i) { |
| my_threads[i].reset(new Thread("GetNumberOfThreadsTest")); |
| my_threads[i]->Start(); |
| ASSERT_EQ(GetNumberOfThreads(current), initial_threads + 1 + i); |
| } |
| } |
| // The Thread destructor will stop them. |
| ASSERT_EQ(initial_threads, GetNumberOfThreads(current)); |
| } |
| #endif // defined(OS_LINUX) |
| |
| #if defined(OS_LINUX) |
| namespace { |
| |
| // Keep these in sync so the GetChildOpenFdCount test can refer to correct test |
| // main. |
| #define ChildMain ChildFdCount |
| #define ChildMainString "ChildFdCount" |
| |
| // Command line flag name and file name used for synchronization. |
| const char kTempDirFlag[] = "temp-dir"; |
| const char kSignalClosed[] = "closed"; |
| |
| bool SignalEvent(const FilePath& signal_dir, const char* signal_file) { |
| File file(signal_dir.AppendASCII(signal_file), |
| File::FLAG_CREATE | File::FLAG_WRITE); |
| return file.IsValid(); |
| } |
| |
| // Check whether an event was signaled. |
| bool CheckEvent(const FilePath& signal_dir, const char* signal_file) { |
| File file(signal_dir.AppendASCII(signal_file), |
| File::FLAG_OPEN | File::FLAG_READ); |
| return file.IsValid(); |
| } |
| |
| // Busy-wait for an event to be signaled. |
| void WaitForEvent(const FilePath& signal_dir, const char* signal_file) { |
| while (!CheckEvent(signal_dir, signal_file)) |
| PlatformThread::Sleep(TimeDelta::FromMilliseconds(10)); |
| } |
| |
| // Subprocess to test the number of open file descriptors. |
| MULTIPROCESS_TEST_MAIN(ChildMain) { |
| CommandLine* command_line = CommandLine::ForCurrentProcess(); |
| const FilePath temp_path = command_line->GetSwitchValuePath(kTempDirFlag); |
| CHECK(DirectoryExists(temp_path)); |
| |
| // Try to close all the file descriptors, so the open count goes to 0. |
| for (size_t i = 0; i < 1000; ++i) |
| close(i); |
| CHECK(SignalEvent(temp_path, kSignalClosed)); |
| |
| // Wait to be terminated. |
| while (true) |
| PlatformThread::Sleep(TimeDelta::FromSeconds(1)); |
| return 0; |
| } |
| |
| } // namespace |
| |
| TEST(ProcessMetricsTest, GetChildOpenFdCount) { |
| ScopedTempDir temp_dir; |
| ASSERT_TRUE(temp_dir.CreateUniqueTempDir()); |
| const FilePath temp_path = temp_dir.GetPath(); |
| CommandLine child_command_line(GetMultiProcessTestChildBaseCommandLine()); |
| child_command_line.AppendSwitchPath(kTempDirFlag, temp_path); |
| Process child = SpawnMultiProcessTestChild( |
| ChildMainString, child_command_line, LaunchOptions()); |
| ASSERT_TRUE(child.IsValid()); |
| WaitForEvent(temp_path, kSignalClosed); |
| |
| std::unique_ptr<ProcessMetrics> metrics( |
| ProcessMetrics::CreateProcessMetrics(child.Handle())); |
| EXPECT_EQ(0, metrics->GetOpenFdCount()); |
| ASSERT_TRUE(child.Terminate(0, true)); |
| } |
| #endif // defined(OS_LINUX) |
| |
| #if defined(OS_ANDROID) || defined(OS_LINUX) |
| |
| TEST(ProcessMetricsTest, GetOpenFdCount) { |
| std::unique_ptr<base::ProcessMetrics> metrics( |
| base::ProcessMetrics::CreateProcessMetrics( |
| base::GetCurrentProcessHandle())); |
| int fd_count = metrics->GetOpenFdCount(); |
| EXPECT_GT(fd_count, 0); |
| ScopedFILE file(fopen("/proc/self/statm", "r")); |
| EXPECT_TRUE(file); |
| int new_fd_count = metrics->GetOpenFdCount(); |
| EXPECT_GT(new_fd_count, 0); |
| EXPECT_EQ(new_fd_count, fd_count + 1); |
| } |
| |
| TEST(ProcessMetricsTestLinux, GetPageFaultCounts) { |
| std::unique_ptr<base::ProcessMetrics> process_metrics( |
| base::ProcessMetrics::CreateProcessMetrics( |
| base::GetCurrentProcessHandle())); |
| |
| PageFaultCounts counts; |
| ASSERT_TRUE(process_metrics->GetPageFaultCounts(&counts)); |
| ASSERT_GT(counts.minor, 0); |
| ASSERT_GE(counts.major, 0); |
| |
| { |
| // Allocate and touch memory. Touching it is required to make sure that the |
| // page fault count goes up, as memory is typically mapped lazily. |
| const size_t kMappedSize = 4 * (1 << 20); |
| SharedMemory memory; |
| ASSERT_TRUE(memory.CreateAndMapAnonymous(kMappedSize)); |
| memset(memory.memory(), 42, kMappedSize); |
| memory.Unmap(); |
| } |
| |
| PageFaultCounts counts_after; |
| ASSERT_TRUE(process_metrics->GetPageFaultCounts(&counts_after)); |
| ASSERT_GT(counts_after.minor, counts.minor); |
| ASSERT_GE(counts_after.major, counts.major); |
| } |
| #endif // defined(OS_ANDROID) || defined(OS_LINUX) |
| |
| } // namespace debug |
| } // namespace base |
