| // 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 <sstream> |
| #include <string> |
| |
| #include "base/threading/thread.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| |
| namespace base { |
| namespace debug { |
| |
| // Tests for SystemMetrics. |
| // Exists as a class so it can be a friend of SystemMetrics. |
| class SystemMetricsTest : public testing::Test { |
| public: |
| SystemMetricsTest() {} |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(SystemMetricsTest); |
| }; |
| |
| ///////////////////////////////////////////////////////////////////////////// |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| TEST_F(SystemMetricsTest, IsValidDiskName) { |
| std::string invalid_input1 = ""; |
| std::string invalid_input2 = "s"; |
| std::string invalid_input3 = "sdz+"; |
| std::string invalid_input4 = "hda0"; |
| std::string invalid_input5 = "mmcbl"; |
| std::string invalid_input6 = "mmcblka"; |
| std::string invalid_input7 = "mmcblkb"; |
| std::string 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)); |
| |
| std::string valid_input1 = "sda"; |
| std::string valid_input2 = "sdaaaa"; |
| std::string valid_input3 = "hdz"; |
| std::string valid_input4 = "mmcblk0"; |
| std::string 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) { |
| struct SystemMemoryInfoKB meminfo; |
| std::string invalid_input1 = "abc"; |
| std::string invalid_input2 = "MemTotal:"; |
| // Partial file with no MemTotal |
| std::string 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)); |
| |
| std::string valid_input1 = |
| "MemTotal: 3981504 kB\n" |
| "MemFree: 140764 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 |
| std::string 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_TRUE(meminfo.total == 3981504); |
| EXPECT_TRUE(meminfo.free == 140764); |
| EXPECT_TRUE(meminfo.buffers == 116480); |
| EXPECT_TRUE(meminfo.cached == 406160); |
| EXPECT_TRUE(meminfo.active_anon == 2972352); |
| EXPECT_TRUE(meminfo.active_file == 179688); |
| EXPECT_TRUE(meminfo.inactive_anon == 270108); |
| EXPECT_TRUE(meminfo.inactive_file == 202748); |
| EXPECT_TRUE(meminfo.swap_total == 5832280); |
| EXPECT_TRUE(meminfo.swap_free == 3672368); |
| EXPECT_TRUE(meminfo.dirty == 184); |
| #if defined(OS_CHROMEOS) |
| EXPECT_TRUE(meminfo.shmem == 140204); |
| EXPECT_TRUE(meminfo.slab == 54212); |
| #endif |
| EXPECT_TRUE(ParseProcMeminfo(valid_input2, &meminfo)); |
| EXPECT_TRUE(meminfo.total == 255908); |
| EXPECT_TRUE(meminfo.free == 69936); |
| EXPECT_TRUE(meminfo.buffers == 15812); |
| EXPECT_TRUE(meminfo.cached == 115124); |
| EXPECT_TRUE(meminfo.swap_total == 524280); |
| EXPECT_TRUE(meminfo.swap_free == 524200); |
| EXPECT_TRUE(meminfo.dirty == 4); |
| } |
| |
| TEST_F(SystemMetricsTest, ParseVmstat) { |
| struct SystemMemoryInfoKB meminfo; |
| // part of vmstat from a 3.2 kernel with numa enabled |
| std::string 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"; |
| std::string 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, &meminfo)); |
| EXPECT_TRUE(meminfo.pswpin == 179); |
| EXPECT_TRUE(meminfo.pswpout == 406); |
| EXPECT_TRUE(meminfo.pgmajfault == 487192); |
| EXPECT_TRUE(ParseProcVmstat(valid_input2, &meminfo)); |
| EXPECT_TRUE(meminfo.pswpin == 12); |
| EXPECT_TRUE(meminfo.pswpout == 901); |
| EXPECT_TRUE(meminfo.pgmajfault == 2023); |
| } |
| #endif // defined(OS_LINUX) || defined(OS_ANDROID) |
| |
| #if defined(OS_LINUX) || defined(OS_ANDROID) |
| TEST(SystemMetrics2Test, GetSystemMemoryInfo) { |
| base::SystemMemoryInfoKB info; |
| EXPECT_TRUE(base::GetSystemMemoryInfo(&info)); |
| |
| // Ensure each field received a value. |
| EXPECT_GT(info.total, 0); |
| EXPECT_GT(info.free, 0); |
| 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); |
| |
| // All the values should be less than the total amount of memory. |
| EXPECT_LT(info.free, info.total); |
| 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); |
| |
| #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_LINUX) || defined(OS_ANDROID) |
| |
| #if defined(OS_WIN) |
| // TODO(estade): if possible, port this test. |
| TEST(ProcessMetricsTest, CalcFreeMemory) { |
| scoped_ptr<base::ProcessMetrics> metrics( |
| base::ProcessMetrics::CreateProcessMetrics(::GetCurrentProcess())); |
| ASSERT_TRUE(NULL != metrics.get()); |
| |
| bool using_tcmalloc = false; |
| |
| // Detect if we are using tcmalloc |
| #if !defined(NO_TCMALLOC) |
| const char* chrome_allocator = getenv("CHROME_ALLOCATOR"); |
| if (!chrome_allocator || _stricmp(chrome_allocator, "tcmalloc") == 0) |
| using_tcmalloc = true; |
| #endif |
| |
| // Typical values here is ~1900 for total and ~1000 for largest. Obviously |
| // it depends in what other tests have done to this process. |
| base::FreeMBytes free_mem1 = {0}; |
| EXPECT_TRUE(metrics->CalculateFreeMemory(&free_mem1)); |
| EXPECT_LT(10u, free_mem1.total); |
| EXPECT_LT(10u, free_mem1.largest); |
| EXPECT_GT(2048u, free_mem1.total); |
| EXPECT_GT(2048u, free_mem1.largest); |
| EXPECT_GE(free_mem1.total, free_mem1.largest); |
| EXPECT_TRUE(NULL != free_mem1.largest_ptr); |
| |
| // Allocate 20M and check again. It should have gone down. |
| const int kAllocMB = 20; |
| scoped_ptr<char[]> alloc(new char[kAllocMB * 1024 * 1024]); |
| size_t expected_total = free_mem1.total - kAllocMB; |
| size_t expected_largest = free_mem1.largest; |
| |
| base::FreeMBytes free_mem2 = {0}; |
| EXPECT_TRUE(metrics->CalculateFreeMemory(&free_mem2)); |
| EXPECT_GE(free_mem2.total, free_mem2.largest); |
| // This test is flaky when using tcmalloc, because tcmalloc |
| // allocation strategy sometimes results in less than the |
| // full drop of 20Mb of free memory. |
| if (!using_tcmalloc) |
| EXPECT_GE(expected_total, free_mem2.total); |
| EXPECT_GE(expected_largest, free_mem2.largest); |
| EXPECT_TRUE(NULL != free_mem2.largest_ptr); |
| } |
| #endif // defined(OS_WIN) |
| |
| #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, base::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, base::ParseProcStatCPU(kSelfStat)); |
| } |
| #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) |
| TEST(ProcessMetricsTest, GetNumberOfThreads) { |
| const base::ProcessHandle current = base::GetCurrentProcessHandle(); |
| const int initial_threads = base::GetNumberOfThreads(current); |
| ASSERT_GT(initial_threads, 0); |
| const int kNumAdditionalThreads = 10; |
| { |
| scoped_ptr<base::Thread> my_threads[kNumAdditionalThreads]; |
| for (int i = 0; i < kNumAdditionalThreads; ++i) { |
| my_threads[i].reset(new base::Thread("GetNumberOfThreadsTest")); |
| my_threads[i]->Start(); |
| ASSERT_EQ(base::GetNumberOfThreads(current), initial_threads + 1 + i); |
| } |
| } |
| // The Thread destructor will stop them. |
| ASSERT_EQ(initial_threads, base::GetNumberOfThreads(current)); |
| } |
| #endif // defined(OS_LINUX) |
| |
| } // namespace debug |
| } // namespace base |
