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- // 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 <memory>
- #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/memory/shared_memory_mapping.h"
- #include "base/memory/writable_shared_memory_region.h"
- #include "base/ranges/algorithm.h"
- #include "base/strings/string_number_conversions.h"
- #include "base/strings/string_util.h"
- #include "base/strings/stringprintf.h"
- #include "base/system/sys_info.h"
- #include "base/test/multiprocess_test.h"
- #include "base/threading/thread.h"
- #include "build/build_config.h"
- #include "build/chromeos_buildflags.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "testing/multiprocess_func_list.h"
- #if BUILDFLAG(IS_APPLE)
- #include <sys/mman.h>
- #endif
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
- #include "base/process/internal_linux.h"
- #endif
- namespace base {
- namespace debug {
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
- BUILDFLAG(IS_CHROMEOS_LACROS) || BUILDFLAG(IS_WIN) || \
- BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
- 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(NumberToString(test_value));
- }
- }
- } // namespace
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_CHROMEOS_LACROS) || BUILDFLAG(IS_WIN) ||
- // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
- // Tests for SystemMetrics.
- // Exists as a class so it can be a friend of SystemMetrics.
- class SystemMetricsTest : public testing::Test {
- public:
- SystemMetricsTest() = default;
- SystemMetricsTest(const SystemMetricsTest&) = delete;
- SystemMetricsTest& operator=(const SystemMetricsTest&) = delete;
- };
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_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 BUILDFLAG(IS_CHROMEOS)
- EXPECT_EQ(meminfo.shmem, 140204);
- EXPECT_EQ(meminfo.slab, 54212);
- #endif
- EXPECT_EQ(355725u,
- base::SysInfo::AmountOfAvailablePhysicalMemory(meminfo) / 1024);
- // Simulate as if there is no MemAvailable.
- meminfo.available = 0;
- EXPECT_EQ(374448u,
- 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(69936u,
- base::SysInfo::AmountOfAvailablePhysicalMemory(meminfo) / 1024);
- }
- TEST_F(SystemMetricsTest, ParseVmstat) {
- VmStatInfo vmstat;
- // Part of vmstat from a 4.19 kernel.
- const char valid_input1[] =
- "pgpgin 2358216\n"
- "pgpgout 296072\n"
- "pswpin 345219\n"
- "pswpout 2605828\n"
- "pgalloc_dma32 8380235\n"
- "pgalloc_normal 3384525\n"
- "pgalloc_movable 0\n"
- "allocstall_dma32 0\n"
- "allocstall_normal 2028\n"
- "allocstall_movable 32559\n"
- "pgskip_dma32 0\n"
- "pgskip_normal 0\n"
- "pgskip_movable 0\n"
- "pgfree 11802722\n"
- "pgactivate 894917\n"
- "pgdeactivate 3255711\n"
- "pglazyfree 48\n"
- "pgfault 10043657\n"
- "pgmajfault 358901\n"
- "pgmajfault_s 2100\n"
- "pgmajfault_a 343211\n"
- "pgmajfault_f 13590\n"
- "pglazyfreed 0\n"
- "pgrefill 3429488\n"
- "pgsteal_kswapd 1466893\n"
- "pgsteal_direct 1771759\n"
- "pgscan_kswapd 1907332\n"
- "pgscan_direct 2118930\n"
- "pgscan_direct_throttle 154\n"
- "pginodesteal 3176\n"
- "slabs_scanned 293804\n"
- "kswapd_inodesteal 16753\n"
- "kswapd_low_wmark_hit_quickly 10\n"
- "kswapd_high_wmark_hit_quickly 423\n"
- "pageoutrun 441\n"
- "pgrotated 1636\n"
- "drop_pagecache 0\n"
- "drop_slab 0\n"
- "oom_kill 18\n";
- const char valid_input2[] =
- "pgpgin 2606135\n"
- "pgpgout 1359128\n"
- "pswpin 899959\n"
- "pswpout 19761244\n"
- "pgalloc_dma 31\n"
- "pgalloc_dma32 18139339\n"
- "pgalloc_normal 44085950\n"
- "pgalloc_movable 0\n"
- "allocstall_dma 0\n"
- "allocstall_dma32 0\n"
- "allocstall_normal 18881\n"
- "allocstall_movable 169527\n"
- "pgskip_dma 0\n"
- "pgskip_dma32 0\n"
- "pgskip_normal 0\n"
- "pgskip_movable 0\n"
- "pgfree 63060999\n"
- "pgactivate 1703494\n"
- "pgdeactivate 20537803\n"
- "pglazyfree 163\n"
- "pgfault 45201169\n"
- "pgmajfault 609626\n"
- "pgmajfault_s 7488\n"
- "pgmajfault_a 591793\n"
- "pgmajfault_f 10345\n"
- "pglazyfreed 0\n"
- "pgrefill 20673453\n"
- "pgsteal_kswapd 11802772\n"
- "pgsteal_direct 8618160\n"
- "pgscan_kswapd 12640517\n"
- "pgscan_direct 9092230\n"
- "pgscan_direct_throttle 638\n"
- "pginodesteal 1716\n"
- "slabs_scanned 2594642\n"
- "kswapd_inodesteal 67358\n"
- "kswapd_low_wmark_hit_quickly 52\n"
- "kswapd_high_wmark_hit_quickly 11\n"
- "pageoutrun 83\n"
- "pgrotated 977\n"
- "drop_pagecache 1\n"
- "drop_slab 1\n"
- "oom_kill 1\n"
- "pgmigrate_success 3202\n"
- "pgmigrate_fail 795\n";
- const char valid_input3[] =
- "pswpin 12\n"
- "pswpout 901\n"
- "pgmajfault 18881\n";
- EXPECT_TRUE(ParseProcVmstat(valid_input1, &vmstat));
- EXPECT_EQ(345219LU, vmstat.pswpin);
- EXPECT_EQ(2605828LU, vmstat.pswpout);
- EXPECT_EQ(358901LU, vmstat.pgmajfault);
- EXPECT_EQ(18LU, vmstat.oom_kill);
- EXPECT_TRUE(ParseProcVmstat(valid_input2, &vmstat));
- EXPECT_EQ(899959LU, vmstat.pswpin);
- EXPECT_EQ(19761244LU, vmstat.pswpout);
- EXPECT_EQ(609626LU, vmstat.pgmajfault);
- EXPECT_EQ(1LU, vmstat.oom_kill);
- EXPECT_TRUE(ParseProcVmstat(valid_input3, &vmstat));
- EXPECT_EQ(12LU, vmstat.pswpin);
- EXPECT_EQ(901LU, vmstat.pswpout);
- EXPECT_EQ(18881LU, vmstat.pgmajfault);
- EXPECT_EQ(0LU, vmstat.oom_kill);
- 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 // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_ANDROID)
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
- BUILDFLAG(IS_CHROMEOS_LACROS) || BUILDFLAG(IS_WIN) || \
- BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
- // 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 // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_CHROMEOS_LACROS) || BUILDFLAG(IS_WIN) ||
- // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_FUCHSIA)
- #if BUILDFLAG(IS_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 // BUILDFLAG(IS_CHROMEOS)
- #if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) || \
- BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
- TEST(SystemMetrics2Test, GetSystemMemoryInfo) {
- SystemMemoryInfoKB info;
- EXPECT_TRUE(GetSystemMemoryInfo(&info));
- // Ensure each field received a value.
- EXPECT_GT(info.total, 0);
- #if BUILDFLAG(IS_WIN)
- EXPECT_GT(info.avail_phys, 0);
- #else
- EXPECT_GT(info.free, 0);
- #endif
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
- EXPECT_GT(info.buffers, 0);
- EXPECT_GT(info.cached, 0);
- EXPECT_GT(info.active_anon + info.inactive_anon, 0);
- EXPECT_GT(info.active_file + info.inactive_file, 0);
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_ANDROID)
- // All the values should be less than the total amount of memory.
- #if !BUILDFLAG(IS_WIN) && !BUILDFLAG(IS_IOS)
- // TODO(crbug.com/711450): re-enable the following assertion on iOS.
- EXPECT_LT(info.free, info.total);
- #endif
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_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 // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_ANDROID)
- #if BUILDFLAG(IS_APPLE)
- EXPECT_GT(info.file_backed, 0);
- #endif
- #if BUILDFLAG(IS_CHROMEOS)
- // Chrome OS exposes shmem.
- EXPECT_GT(info.shmem, 0);
- EXPECT_LT(info.shmem, info.total);
- #endif
- }
- #endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) ||
- // BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_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));
- }
- TEST(ProcessMetricsTest, ParseProcTimeInState) {
- ProcessHandle handle = GetCurrentProcessHandle();
- std::unique_ptr<ProcessMetrics> metrics(
- ProcessMetrics::CreateProcessMetrics(handle));
- ProcessMetrics::TimeInStatePerThread time_in_state;
- const char kStatThread123[] =
- "cpu0\n"
- "100000 4\n"
- "200000 5\n"
- "300000 0\n"
- "cpu4\n"
- "400000 3\n"
- "500000 2\n";
- EXPECT_TRUE(
- metrics->ParseProcTimeInState(kStatThread123, 123, time_in_state));
- // Zero-valued entry should not exist.
- ASSERT_EQ(time_in_state.size(), 4u);
- EXPECT_EQ(time_in_state[0].thread_id, 123);
- EXPECT_EQ(time_in_state[0].cluster_core_index, 0u);
- EXPECT_EQ(time_in_state[0].core_frequency_khz, 100000u);
- EXPECT_EQ(time_in_state[0].cumulative_cpu_time, base::Milliseconds(40));
- EXPECT_EQ(time_in_state[1].thread_id, 123);
- EXPECT_EQ(time_in_state[1].cluster_core_index, 0u);
- EXPECT_EQ(time_in_state[1].core_frequency_khz, 200000u);
- EXPECT_EQ(time_in_state[1].cumulative_cpu_time, base::Milliseconds(50));
- EXPECT_EQ(time_in_state[2].thread_id, 123);
- EXPECT_EQ(time_in_state[2].cluster_core_index, 4u);
- EXPECT_EQ(time_in_state[2].core_frequency_khz, 400000u);
- EXPECT_EQ(time_in_state[2].cumulative_cpu_time, base::Milliseconds(30));
- EXPECT_EQ(time_in_state[3].thread_id, 123);
- EXPECT_EQ(time_in_state[3].cluster_core_index, 4u);
- EXPECT_EQ(time_in_state[3].core_frequency_khz, 500000u);
- EXPECT_EQ(time_in_state[3].cumulative_cpu_time, base::Milliseconds(20));
- // Calling ParseProcTimeInState again adds to the vector.
- const char kStatThread456[] =
- "cpu0\n"
- "\n" // extra empty line is fine.
- "1000000 10"; // missing "\n" at end is fine.
- EXPECT_TRUE(
- metrics->ParseProcTimeInState(kStatThread456, 456, time_in_state));
- ASSERT_EQ(time_in_state.size(), 5u);
- EXPECT_EQ(time_in_state[4].thread_id, 456);
- EXPECT_EQ(time_in_state[4].cluster_core_index, 0u);
- EXPECT_EQ(time_in_state[4].core_frequency_khz, 1000000u);
- EXPECT_EQ(time_in_state[4].cumulative_cpu_time, base::Milliseconds(100));
- // Calling ParseProcTimeInState with invalid data returns false.
- EXPECT_FALSE(
- metrics->ParseProcTimeInState("100000 5\n" // no header
- "200000 6\n",
- 123, time_in_state));
- EXPECT_FALSE(
- metrics->ParseProcTimeInState("cpu0\n"
- "100000\n", // no time value
- 123, time_in_state));
- EXPECT_FALSE(
- metrics->ParseProcTimeInState("header0\n" // invalid header / line
- "100000 5\n",
- 123, time_in_state));
- EXPECT_FALSE(
- metrics->ParseProcTimeInState("cpu0\n"
- "100000 5\n"
- "invalid334 4\n", // invalid header / line
- 123, time_in_state));
- }
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) ||
- // BUILDFLAG(IS_ANDROID)
- // Disable on Android because base_unittests runs inside a Dalvik VM that
- // starts and stop threads (crbug.com/175563).
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- // http://crbug.com/396455
- TEST(ProcessMetricsTest, DISABLED_GetNumberOfThreads) {
- const ProcessHandle current = GetCurrentProcessHandle();
- const int64_t 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] = std::make_unique<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 // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC)
- 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 kSignalReady[] = "ready";
- const char kSignalReadyAck[] = "ready-ack";
- const char kSignalOpened[] = "opened";
- const char kSignalOpenedAck[] = "opened-ack";
- const char kSignalClosed[] = "closed";
- const int kChildNumFilesToOpen = 100;
- 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(Milliseconds(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));
- CHECK(SignalEvent(temp_path, kSignalReady));
- WaitForEvent(temp_path, kSignalReadyAck);
- std::vector<File> files;
- for (int i = 0; i < kChildNumFilesToOpen; ++i) {
- files.emplace_back(temp_path.AppendASCII(StringPrintf("file.%d", i)),
- File::FLAG_CREATE | File::FLAG_WRITE);
- }
- CHECK(SignalEvent(temp_path, kSignalOpened));
- WaitForEvent(temp_path, kSignalOpenedAck);
- files.clear();
- CHECK(SignalEvent(temp_path, kSignalClosed));
- // Wait to be terminated.
- while (true)
- PlatformThread::Sleep(Seconds(1));
- }
- } // 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, kSignalReady);
- std::unique_ptr<ProcessMetrics> metrics =
- #if BUILDFLAG(IS_APPLE)
- ProcessMetrics::CreateProcessMetrics(child.Handle(), nullptr);
- #else
- ProcessMetrics::CreateProcessMetrics(child.Handle());
- #endif // BUILDFLAG(IS_APPLE)
- const int fd_count = metrics->GetOpenFdCount();
- EXPECT_GE(fd_count, 0);
- ASSERT_TRUE(SignalEvent(temp_path, kSignalReadyAck));
- WaitForEvent(temp_path, kSignalOpened);
- EXPECT_EQ(fd_count + kChildNumFilesToOpen, metrics->GetOpenFdCount());
- ASSERT_TRUE(SignalEvent(temp_path, kSignalOpenedAck));
- WaitForEvent(temp_path, kSignalClosed);
- EXPECT_EQ(fd_count, metrics->GetOpenFdCount());
- ASSERT_TRUE(child.Terminate(0, true));
- }
- TEST(ProcessMetricsTest, GetOpenFdCount) {
- base::ProcessHandle process = base::GetCurrentProcessHandle();
- std::unique_ptr<base::ProcessMetrics> metrics =
- #if BUILDFLAG(IS_APPLE)
- ProcessMetrics::CreateProcessMetrics(process, nullptr);
- #else
- ProcessMetrics::CreateProcessMetrics(process);
- #endif // BUILDFLAG(IS_APPLE)
- ScopedTempDir temp_dir;
- ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
- int fd_count = metrics->GetOpenFdCount();
- EXPECT_GT(fd_count, 0);
- File file(temp_dir.GetPath().AppendASCII("file"),
- File::FLAG_CREATE | File::FLAG_WRITE);
- int new_fd_count = metrics->GetOpenFdCount();
- EXPECT_GT(new_fd_count, 0);
- EXPECT_EQ(new_fd_count, fd_count + 1);
- }
- #endif // BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC)
- #if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
- 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 << 20; // 4 MiB.
- WritableSharedMemoryRegion region =
- WritableSharedMemoryRegion::Create(kMappedSize);
- ASSERT_TRUE(region.IsValid());
- WritableSharedMemoryMapping mapping = region.Map();
- ASSERT_TRUE(mapping.IsValid());
- memset(mapping.memory(), 42, kMappedSize);
- }
- PageFaultCounts counts_after;
- ASSERT_TRUE(process_metrics->GetPageFaultCounts(&counts_after));
- ASSERT_GT(counts_after.minor, counts.minor);
- ASSERT_GE(counts_after.major, counts.major);
- }
- TEST(ProcessMetricsTestLinux, GetCumulativeCPUUsagePerThread) {
- ProcessHandle handle = GetCurrentProcessHandle();
- std::unique_ptr<ProcessMetrics> metrics(
- ProcessMetrics::CreateProcessMetrics(handle));
- Thread thread1("thread1");
- thread1.StartAndWaitForTesting();
- ASSERT_TRUE(thread1.IsRunning());
- std::vector<std::string> vec1;
- thread1.task_runner()->PostTask(FROM_HERE, BindOnce(&BusyWork, &vec1));
- ProcessMetrics::CPUUsagePerThread prev_thread_times;
- EXPECT_TRUE(metrics->GetCumulativeCPUUsagePerThread(prev_thread_times));
- // Should have at least the test runner thread and the thread spawned above.
- EXPECT_GE(prev_thread_times.size(), 2u);
- EXPECT_TRUE(ranges::any_of(
- prev_thread_times,
- [&thread1](const std::pair<PlatformThreadId, base::TimeDelta>& entry) {
- return entry.first == thread1.GetThreadId();
- }));
- EXPECT_TRUE(ranges::any_of(
- prev_thread_times,
- [](const std::pair<PlatformThreadId, base::TimeDelta>& entry) {
- return entry.first == base::PlatformThread::CurrentId();
- }));
- for (const auto& entry : prev_thread_times) {
- EXPECT_GE(entry.second, base::TimeDelta());
- }
- thread1.Stop();
- ProcessMetrics::CPUUsagePerThread current_thread_times;
- EXPECT_TRUE(metrics->GetCumulativeCPUUsagePerThread(current_thread_times));
- // The stopped thread may still be reported until the kernel cleans it up.
- EXPECT_GE(prev_thread_times.size(), 1u);
- EXPECT_TRUE(ranges::any_of(
- current_thread_times,
- [](const std::pair<PlatformThreadId, base::TimeDelta>& entry) {
- return entry.first == base::PlatformThread::CurrentId();
- }));
- // Reported times should not decrease.
- for (const auto& entry : current_thread_times) {
- auto prev_it = ranges::find_if(
- prev_thread_times,
- [&entry](
- const std::pair<PlatformThreadId, base::TimeDelta>& prev_entry) {
- return entry.first == prev_entry.first;
- });
- if (prev_it != prev_thread_times.end())
- EXPECT_GE(entry.second, prev_it->second);
- }
- }
- TEST(ProcessMetricsTestLinux, GetPerThreadCumulativeCPUTimeInState) {
- ProcessHandle handle = GetCurrentProcessHandle();
- std::unique_ptr<ProcessMetrics> metrics(
- ProcessMetrics::CreateProcessMetrics(handle));
- // Only some test systems will support GetPerThreadCumulativeCPUTimeInState,
- // as it relies on /proc/pid/task/tid/time_in_state support in the kernel. In
- // Android, this is only supported in newer kernels with a patch such as this:
- // https://android-review.googlesource.com/c/kernel/common/+/610460/.
- bool expect_success;
- std::string contents;
- {
- FilePath time_in_state_path = FilePath("/proc")
- .Append(NumberToString(handle))
- .Append("task")
- .Append(NumberToString(handle))
- .Append("time_in_state");
- expect_success = ReadFileToString(time_in_state_path, &contents) &&
- StartsWith(contents, "cpu", CompareCase::SENSITIVE);
- }
- ProcessMetrics::TimeInStatePerThread prev_thread_times;
- EXPECT_EQ(metrics->GetPerThreadCumulativeCPUTimeInState(prev_thread_times),
- expect_success)
- << "time_in_state example contents: \n"
- << contents;
- // Only non-zero entries are reported.
- for (const auto& entry : prev_thread_times) {
- EXPECT_NE(entry.thread_id, 0);
- EXPECT_GT(entry.cumulative_cpu_time, base::TimeDelta());
- }
- ProcessMetrics::TimeInStatePerThread current_thread_times;
- EXPECT_EQ(metrics->GetPerThreadCumulativeCPUTimeInState(current_thread_times),
- expect_success);
- // Reported times should not decrease.
- for (const auto& entry : current_thread_times) {
- auto prev_it = ranges::find_if(
- prev_thread_times,
- [&entry](const ProcessMetrics::ThreadTimeInState& prev_entry) {
- return entry.thread_id == prev_entry.thread_id &&
- entry.core_type == prev_entry.core_type &&
- entry.core_frequency_khz == prev_entry.core_frequency_khz;
- });
- if (prev_it != prev_thread_times.end())
- EXPECT_GE(entry.cumulative_cpu_time, prev_it->cumulative_cpu_time);
- }
- }
- #endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_LINUX) ||
- // BUILDFLAG(IS_CHROMEOS)
- } // namespace debug
- } // namespace base
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