| OLD | NEW |
|---|
| (Empty) |
| 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 "base/logging.h" | |
| 8 #include "base/values.h" | |
| 9 | |
| 10 namespace base { | |
| 11 | |
| 12 SystemMetrics::SystemMetrics() { | |
| 13 committed_memory_ = 0; | |
| 14 } | |
| 15 | |
| 16 SystemMetrics SystemMetrics::Sample() { | |
| 17 SystemMetrics system_metrics; | |
| 18 | |
| 19 system_metrics.committed_memory_ = GetSystemCommitCharge(); | |
| 20 #if defined(OS_LINUX) || defined(OS_ANDROID) | |
| 21 GetSystemMemoryInfo(&system_metrics.memory_info_); | |
| 22 GetSystemDiskInfo(&system_metrics.disk_info_); | |
| 23 #endif | |
| 24 #if defined(OS_CHROMEOS) | |
| 25 GetSwapInfo(&system_metrics.swap_info_); | |
| 26 #endif | |
| 27 | |
| 28 return system_metrics; | |
| 29 } | |
| 30 | |
| 31 scoped_ptr<Value> SystemMetrics::ToValue() const { | |
| 32 scoped_ptr<DictionaryValue> res(new DictionaryValue()); | |
| 33 | |
| 34 res->SetInteger("committed_memory", static_cast<int>(committed_memory_)); | |
| 35 #if defined(OS_LINUX) || defined(OS_ANDROID) | |
| 36 res->Set("meminfo", memory_info_.ToValue()); | |
| 37 res->Set("diskinfo", disk_info_.ToValue()); | |
| 38 #endif | |
| 39 #if defined(OS_CHROMEOS) | |
| 40 res->Set("swapinfo", swap_info_.ToValue()); | |
| 41 #endif | |
| 42 | |
| 43 return res.Pass(); | |
| 44 } | |
| 45 | |
| 46 double ProcessMetrics::GetPlatformIndependentCPUUsage() { | |
| 47 #if defined(OS_WIN) | |
| 48 return GetCPUUsage() * processor_count_; | |
| 49 #else | |
| 50 return GetCPUUsage(); | |
| 51 #endif | |
| 52 } | |
| 53 | |
| 54 #if defined(OS_MACOSX) || defined(OS_LINUX) | |
| 55 int ProcessMetrics::CalculateIdleWakeupsPerSecond( | |
| 56 uint64 absolute_idle_wakeups) { | |
| 57 TimeTicks time = TimeTicks::Now(); | |
| 58 | |
| 59 if (last_absolute_idle_wakeups_ == 0) { | |
| 60 // First call, just set the last values. | |
| 61 last_idle_wakeups_time_ = time; | |
| 62 last_absolute_idle_wakeups_ = absolute_idle_wakeups; | |
| 63 return 0; | |
| 64 } | |
| 65 | |
| 66 int64 wakeups_delta = absolute_idle_wakeups - last_absolute_idle_wakeups_; | |
| 67 int64 time_delta = (time - last_idle_wakeups_time_).InMicroseconds(); | |
| 68 if (time_delta == 0) { | |
| 69 NOTREACHED(); | |
| 70 return 0; | |
| 71 } | |
| 72 | |
| 73 last_idle_wakeups_time_ = time; | |
| 74 last_absolute_idle_wakeups_ = absolute_idle_wakeups; | |
| 75 | |
| 76 // Round to average wakeups per second. | |
| 77 int64 wakeups_delta_for_ms = wakeups_delta * Time::kMicrosecondsPerSecond; | |
| 78 return (wakeups_delta_for_ms + time_delta / 2) / time_delta; | |
| 79 } | |
| 80 #else | |
| 81 int ProcessMetrics::GetIdleWakeupsPerSecond() { | |
| 82 NOTIMPLEMENTED(); // http://crbug.com/120488 | |
| 83 return 0; | |
| 84 } | |
| 85 #endif // defined(OS_MACOSX) || defined(OS_LINUX) | |
| 86 | |
| 87 } // namespace base | |
| OLD | NEW |
|---|
Chromium Code Reviews
