1 // Copyright 2013 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 "base/process/process_metrics.h" 6 7 #include <utility> 8 9 #include "base/logging.h" 10 #include "base/values.h" 11 #include "build/build_config.h" 12 13 namespace base { 14 15 SystemMemoryInfoKB::SystemMemoryInfoKB() = default; 16 17 SystemMemoryInfoKB::SystemMemoryInfoKB(const SystemMemoryInfoKB& other) = 18 default; 19 SystemMetrics()20SystemMetrics::SystemMetrics() { 21 committed_memory_ = 0; 22 } 23 Sample()24SystemMetrics SystemMetrics::Sample() { 25 SystemMetrics system_metrics; 26 27 system_metrics.committed_memory_ = GetSystemCommitCharge(); 28 #if defined(OS_LINUX) || defined(OS_ANDROID) 29 GetSystemMemoryInfo(&system_metrics.memory_info_); 30 GetSystemDiskInfo(&system_metrics.disk_info_); 31 #endif 32 #if defined(OS_CHROMEOS) 33 GetSwapInfo(&system_metrics.swap_info_); 34 #endif 35 36 return system_metrics; 37 } 38 ToValue() const39std::unique_ptr<Value> SystemMetrics::ToValue() const { 40 std::unique_ptr<DictionaryValue> res(new DictionaryValue()); 41 42 res->SetInteger("committed_memory", static_cast<int>(committed_memory_)); 43 #if defined(OS_LINUX) || defined(OS_ANDROID) 44 res->Set("meminfo", memory_info_.ToValue()); 45 res->Set("diskinfo", disk_info_.ToValue()); 46 #endif 47 #if defined(OS_CHROMEOS) 48 res->Set("swapinfo", swap_info_.ToValue()); 49 #endif 50 51 return std::move(res); 52 } 53 CreateCurrentProcessMetrics()54std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateCurrentProcessMetrics() { 55 #if !defined(OS_MACOSX) || defined(OS_IOS) 56 return CreateProcessMetrics(base::GetCurrentProcessHandle()); 57 #else 58 return CreateProcessMetrics(base::GetCurrentProcessHandle(), nullptr); 59 #endif // !defined(OS_MACOSX) || defined(OS_IOS) 60 } 61 GetPlatformIndependentCPUUsage()62double ProcessMetrics::GetPlatformIndependentCPUUsage() { 63 #if defined(OS_WIN) 64 return GetCPUUsage() * processor_count_; 65 #else 66 return GetCPUUsage(); 67 #endif 68 } 69 70 #if defined(OS_MACOSX) || defined(OS_LINUX) CalculateIdleWakeupsPerSecond(uint64_t absolute_idle_wakeups)71int ProcessMetrics::CalculateIdleWakeupsPerSecond( 72 uint64_t absolute_idle_wakeups) { 73 TimeTicks time = TimeTicks::Now(); 74 75 if (last_absolute_idle_wakeups_ == 0) { 76 // First call, just set the last values. 77 last_idle_wakeups_time_ = time; 78 last_absolute_idle_wakeups_ = absolute_idle_wakeups; 79 return 0; 80 } 81 82 int64_t wakeups_delta = absolute_idle_wakeups - last_absolute_idle_wakeups_; 83 int64_t time_delta = (time - last_idle_wakeups_time_).InMicroseconds(); 84 if (time_delta == 0) { 85 NOTREACHED(); 86 return 0; 87 } 88 89 last_idle_wakeups_time_ = time; 90 last_absolute_idle_wakeups_ = absolute_idle_wakeups; 91 92 int64_t wakeups_delta_for_ms = wakeups_delta * Time::kMicrosecondsPerSecond; 93 // Round the result up by adding 1/2 (the second term resolves to 1/2 without 94 // dropping down into floating point). 95 return (wakeups_delta_for_ms + time_delta / 2) / time_delta; 96 } 97 #else GetIdleWakeupsPerSecond()98int ProcessMetrics::GetIdleWakeupsPerSecond() { 99 NOTIMPLEMENTED(); // http://crbug.com/120488 100 return 0; 101 } 102 #endif // defined(OS_MACOSX) || defined(OS_LINUX) 103 104 } // namespace base 105