1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
// Copyright (c) 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 <sys/param.h>
#include <sys/sysctl.h>
#include "base/macros.h"
#include "base/memory/ptr_util.h"
#include "base/sys_info.h"
namespace base {
// static
std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics(
ProcessHandle process) {
return WrapUnique(new ProcessMetrics(process));
}
size_t ProcessMetrics::GetPagefileUsage() const {
struct kinfo_proc info;
size_t length;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_,
sizeof(struct kinfo_proc), 0 };
if (sysctl(mib, arraysize(mib), NULL, &length, NULL, 0) < 0)
return -1;
mib[5] = (length / sizeof(struct kinfo_proc));
if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
return -1;
return (info.p_vm_tsize + info.p_vm_dsize + info.p_vm_ssize);
}
size_t ProcessMetrics::GetPeakPagefileUsage() const {
return 0;
}
size_t ProcessMetrics::GetWorkingSetSize() const {
struct kinfo_proc info;
size_t length;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_,
sizeof(struct kinfo_proc), 0 };
if (sysctl(mib, arraysize(mib), NULL, &length, NULL, 0) < 0)
return -1;
mib[5] = (length / sizeof(struct kinfo_proc));
if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
return -1;
return info.p_vm_rssize * getpagesize();
}
size_t ProcessMetrics::GetPeakWorkingSetSize() const {
return 0;
}
bool ProcessMetrics::GetMemoryBytes(size_t* private_bytes,
size_t* shared_bytes) {
WorkingSetKBytes ws_usage;
if (!GetWorkingSetKBytes(&ws_usage))
return false;
if (private_bytes)
*private_bytes = ws_usage.priv << 10;
if (shared_bytes)
*shared_bytes = ws_usage.shared * 1024;
return true;
}
bool ProcessMetrics::GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const {
// TODO(bapt): be sure we can't be precise
size_t priv = GetWorkingSetSize();
if (!priv)
return false;
ws_usage->priv = priv / 1024;
ws_usage->shareable = 0;
ws_usage->shared = 0;
return true;
}
bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const {
return false;
}
static int GetProcessCPU(pid_t pid) {
struct kinfo_proc info;
size_t length;
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid,
sizeof(struct kinfo_proc), 0 };
if (sysctl(mib, arraysize(mib), NULL, &length, NULL, 0) < 0)
return -1;
mib[5] = (length / sizeof(struct kinfo_proc));
if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
return 0;
return info.p_pctcpu;
}
double ProcessMetrics::GetCPUUsage() {
TimeTicks time = TimeTicks::Now();
if (last_cpu_ == 0) {
// First call, just set the last values.
last_cpu_time_ = time;
last_cpu_ = GetProcessCPU(process_);
return 0;
}
int64_t time_delta = (time - last_cpu_time_).InMicroseconds();
DCHECK_NE(time_delta, 0);
if (time_delta == 0)
return 0;
int cpu = GetProcessCPU(process_);
last_cpu_time_ = time;
last_cpu_ = cpu;
double percentage = static_cast<double>((cpu * 100.0) / FSCALE);
return percentage;
}
ProcessMetrics::ProcessMetrics(ProcessHandle process)
: process_(process),
processor_count_(SysInfo::NumberOfProcessors()),
last_system_time_(0),
last_cpu_(0) {}
size_t GetSystemCommitCharge() {
int mib[] = { CTL_VM, VM_METER };
int pagesize;
struct vmtotal vmtotal;
unsigned long mem_total, mem_free, mem_inactive;
size_t len = sizeof(vmtotal);
if (sysctl(mib, arraysize(mib), &vmtotal, &len, NULL, 0) < 0)
return 0;
mem_total = vmtotal.t_vm;
mem_free = vmtotal.t_free;
mem_inactive = vmtotal.t_vm - vmtotal.t_avm;
pagesize = getpagesize();
return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize);
}
} // namespace base
|
