1 // Copyright 2013 The Chromium Authors
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/check.h"
10 #include "base/notreached.h"
11 #include "base/numerics/safe_conversions.h"
12 #include "base/values.h"
13 #include "build/build_config.h"
14
15 namespace base {
16
17 namespace {
18
19 #if BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
20 BUILDFLAG(IS_AIX)
CalculateEventsPerSecond(uint64_t event_count,uint64_t * last_event_count,base::TimeTicks * last_calculated)21 int CalculateEventsPerSecond(uint64_t event_count,
22 uint64_t* last_event_count,
23 base::TimeTicks* last_calculated) {
24 const base::TimeTicks time = base::TimeTicks::Now();
25
26 int events_per_second = 0;
27 if (*last_event_count != 0) {
28 const uint64_t events_delta = event_count - *last_event_count;
29 const base::TimeDelta time_delta = time - *last_calculated;
30 DCHECK(!time_delta.is_zero());
31 events_per_second = ClampRound(events_delta / time_delta.InSecondsF());
32 }
33
34 *last_calculated = time;
35 *last_event_count = event_count;
36 return events_per_second;
37 }
38 #endif
39
40 } // namespace
41
42 SystemMemoryInfoKB::SystemMemoryInfoKB() = default;
43
44 SystemMemoryInfoKB::SystemMemoryInfoKB(const SystemMemoryInfoKB&) = default;
45
46 SystemMemoryInfoKB& SystemMemoryInfoKB::operator=(const SystemMemoryInfoKB&) =
47 default;
48
SystemMetrics()49 SystemMetrics::SystemMetrics() {
50 committed_memory_ = 0;
51 }
52
Sample()53 SystemMetrics SystemMetrics::Sample() {
54 SystemMetrics system_metrics;
55
56 system_metrics.committed_memory_ = GetSystemCommitCharge();
57 #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
58 GetSystemMemoryInfo(&system_metrics.memory_info_);
59 GetVmStatInfo(&system_metrics.vmstat_info_);
60 GetSystemDiskInfo(&system_metrics.disk_info_);
61 #endif
62 #if BUILDFLAG(IS_CHROMEOS)
63 GetSwapInfo(&system_metrics.swap_info_);
64 GetGraphicsMemoryInfo(&system_metrics.gpu_memory_info_);
65 #endif
66 #if BUILDFLAG(IS_WIN)
67 GetSystemPerformanceInfo(&system_metrics.performance_);
68 #endif
69 return system_metrics;
70 }
71
ToDict() const72 Value::Dict SystemMetrics::ToDict() const {
73 Value::Dict res;
74
75 res.Set("committed_memory", static_cast<int>(committed_memory_));
76 #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
77 Value::Dict meminfo = memory_info_.ToDict();
78 meminfo.Merge(vmstat_info_.ToDict());
79 res.Set("meminfo", std::move(meminfo));
80 res.Set("diskinfo", disk_info_.ToDict());
81 #endif
82 #if BUILDFLAG(IS_CHROMEOS)
83 res.Set("swapinfo", swap_info_.ToDict());
84 res.Set("gpu_meminfo", gpu_memory_info_.ToDict());
85 #endif
86 #if BUILDFLAG(IS_WIN)
87 res.Set("perfinfo", performance_.ToDict());
88 #endif
89
90 return res;
91 }
92
93 ProcessMetrics::~ProcessMetrics() = default;
94
CreateCurrentProcessMetrics()95 std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateCurrentProcessMetrics() {
96 #if !BUILDFLAG(IS_MAC)
97 return CreateProcessMetrics(base::GetCurrentProcessHandle());
98 #else
99 return CreateProcessMetrics(base::GetCurrentProcessHandle(), nullptr);
100 #endif // !BUILDFLAG(IS_MAC)
101 }
102
103 #if !BUILDFLAG(IS_FREEBSD) || !BUILDFLAG(IS_POSIX)
GetPlatformIndependentCPUUsage(TimeDelta cumulative_cpu)104 double ProcessMetrics::GetPlatformIndependentCPUUsage(
105 TimeDelta cumulative_cpu) {
106 TimeTicks time = TimeTicks::Now();
107
108 if (last_cumulative_cpu_.is_zero()) {
109 // First call, just set the last values.
110 last_cumulative_cpu_ = cumulative_cpu;
111 last_cpu_time_ = time;
112 return 0;
113 }
114
115 TimeDelta cpu_time_delta = cumulative_cpu - last_cumulative_cpu_;
116 TimeDelta time_delta = time - last_cpu_time_;
117 if (time_delta.is_zero())
118 return 0;
119
120 last_cumulative_cpu_ = cumulative_cpu;
121 last_cpu_time_ = time;
122
123 return 100.0 * cpu_time_delta / time_delta;
124 }
125
GetPlatformIndependentCPUUsage()126 double ProcessMetrics::GetPlatformIndependentCPUUsage() {
127 return GetPlatformIndependentCPUUsage(GetCumulativeCPUUsage());
128 }
129 #endif
130
131 #if BUILDFLAG(IS_WIN)
GetPreciseCPUUsage(TimeDelta cumulative_cpu)132 double ProcessMetrics::GetPreciseCPUUsage(TimeDelta cumulative_cpu) {
133 TimeTicks time = TimeTicks::Now();
134
135 if (last_precise_cumulative_cpu_.is_zero()) {
136 // First call, just set the last values.
137 last_precise_cumulative_cpu_ = cumulative_cpu;
138 last_cpu_time_for_precise_cpu_usage_ = time;
139 return 0;
140 }
141
142 TimeDelta cpu_time_delta = cumulative_cpu - last_precise_cumulative_cpu_;
143 TimeDelta time_delta = time - last_cpu_time_for_precise_cpu_usage_;
144 DCHECK(!time_delta.is_zero());
145 if (time_delta.is_zero())
146 return 0;
147
148 last_precise_cumulative_cpu_ = cumulative_cpu;
149 last_cpu_time_for_precise_cpu_usage_ = time;
150
151 return 100.0 * cpu_time_delta / time_delta;
152 }
153
GetPreciseCPUUsage()154 double ProcessMetrics::GetPreciseCPUUsage() {
155 return GetPreciseCPUUsage(GetPreciseCumulativeCPUUsage());
156 }
157 #endif // BUILDFLAG(IS_WIN)
158
159 #if BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
160 BUILDFLAG(IS_AIX)
CalculateIdleWakeupsPerSecond(uint64_t absolute_idle_wakeups)161 int ProcessMetrics::CalculateIdleWakeupsPerSecond(
162 uint64_t absolute_idle_wakeups) {
163 return CalculateEventsPerSecond(absolute_idle_wakeups,
164 &last_absolute_idle_wakeups_,
165 &last_idle_wakeups_time_);
166 }
167 #else
GetIdleWakeupsPerSecond()168 int ProcessMetrics::GetIdleWakeupsPerSecond() {
169 NOTIMPLEMENTED(); // http://crbug.com/120488
170 return 0;
171 }
172 #endif // BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
173 // || BUILDFLAG(IS_AIX)
174
175 #if BUILDFLAG(IS_APPLE)
CalculatePackageIdleWakeupsPerSecond(uint64_t absolute_package_idle_wakeups)176 int ProcessMetrics::CalculatePackageIdleWakeupsPerSecond(
177 uint64_t absolute_package_idle_wakeups) {
178 return CalculateEventsPerSecond(absolute_package_idle_wakeups,
179 &last_absolute_package_idle_wakeups_,
180 &last_package_idle_wakeups_time_);
181 }
182
183 #endif // BUILDFLAG(IS_APPLE)
184
185 #if !BUILDFLAG(IS_WIN)
GetCumulativeDiskUsageInBytes()186 uint64_t ProcessMetrics::GetCumulativeDiskUsageInBytes() {
187 // Not implemented.
188 return 0;
189 }
190 #endif
191
192 } // namespace base
193