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 SystemMetrics()15SystemMetrics::SystemMetrics() { 16 committed_memory_ = 0; 17 } 18 Sample()19SystemMetrics SystemMetrics::Sample() { 20 SystemMetrics system_metrics; 21 22 system_metrics.committed_memory_ = GetSystemCommitCharge(); 23 #if defined(OS_LINUX) || defined(OS_ANDROID) 24 GetSystemMemoryInfo(&system_metrics.memory_info_); 25 GetSystemDiskInfo(&system_metrics.disk_info_); 26 #endif 27 #if defined(OS_CHROMEOS) 28 GetSwapInfo(&system_metrics.swap_info_); 29 #endif 30 31 return system_metrics; 32 } 33 ToValue() const34scoped_ptr<Value> SystemMetrics::ToValue() const { 35 scoped_ptr<DictionaryValue> res(new DictionaryValue()); 36 37 res->SetInteger("committed_memory", static_cast<int>(committed_memory_)); 38 #if defined(OS_LINUX) || defined(OS_ANDROID) 39 res->Set("meminfo", memory_info_.ToValue()); 40 res->Set("diskinfo", disk_info_.ToValue()); 41 #endif 42 #if defined(OS_CHROMEOS) 43 res->Set("swapinfo", swap_info_.ToValue()); 44 #endif 45 46 return std::move(res); 47 } 48 CreateCurrentProcessMetrics()49ProcessMetrics* ProcessMetrics::CreateCurrentProcessMetrics() { 50 #if !defined(OS_MACOSX) || defined(OS_IOS) 51 return CreateProcessMetrics(base::GetCurrentProcessHandle()); 52 #else 53 return CreateProcessMetrics(base::GetCurrentProcessHandle(), nullptr); 54 #endif // !defined(OS_MACOSX) || defined(OS_IOS) 55 } 56 GetPlatformIndependentCPUUsage()57double ProcessMetrics::GetPlatformIndependentCPUUsage() { 58 #if defined(OS_WIN) 59 return GetCPUUsage() * processor_count_; 60 #else 61 return GetCPUUsage(); 62 #endif 63 } 64 65 #if defined(OS_MACOSX) || defined(OS_LINUX) CalculateIdleWakeupsPerSecond(uint64_t absolute_idle_wakeups)66int ProcessMetrics::CalculateIdleWakeupsPerSecond( 67 uint64_t absolute_idle_wakeups) { 68 TimeTicks time = TimeTicks::Now(); 69 70 if (last_absolute_idle_wakeups_ == 0) { 71 // First call, just set the last values. 72 last_idle_wakeups_time_ = time; 73 last_absolute_idle_wakeups_ = absolute_idle_wakeups; 74 return 0; 75 } 76 77 int64_t wakeups_delta = absolute_idle_wakeups - last_absolute_idle_wakeups_; 78 int64_t time_delta = (time - last_idle_wakeups_time_).InMicroseconds(); 79 if (time_delta == 0) { 80 NOTREACHED(); 81 return 0; 82 } 83 84 last_idle_wakeups_time_ = time; 85 last_absolute_idle_wakeups_ = absolute_idle_wakeups; 86 87 // Round to average wakeups per second. 88 int64_t wakeups_delta_for_ms = wakeups_delta * Time::kMicrosecondsPerSecond; 89 return (wakeups_delta_for_ms + time_delta / 2) / time_delta; 90 } 91 #else GetIdleWakeupsPerSecond()92int ProcessMetrics::GetIdleWakeupsPerSecond() { 93 NOTIMPLEMENTED(); // http://crbug.com/120488 94 return 0; 95 } 96 #endif // defined(OS_MACOSX) || defined(OS_LINUX) 97 98 } // namespace base 99