process_metrics_freebsd.cc revision 90dce4d38c5ff5333bea97d859d4e484e27edf0c 
1// Copyright (c) 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
7namespace base {
8
9ProcessMetrics::ProcessMetrics(ProcessHandle process)
10    : process_(process),
11      last_time_(0),
12      last_system_time_(0),
13      last_cpu_(0) {
14  processor_count_ = base::SysInfo::NumberOfProcessors();
15}
16
17// static
18ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
19  return new ProcessMetrics(process);
20}
21
22size_t ProcessMetrics::GetPagefileUsage() const {
23  struct kinfo_proc info;
24  int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
25  size_t length = sizeof(info);
26
27  if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
28    return 0;
29
30  return info.ki_size;
31}
32
33size_t ProcessMetrics::GetPeakPagefileUsage() const {
34  return 0;
35}
36
37size_t ProcessMetrics::GetWorkingSetSize() const {
38  struct kinfo_proc info;
39  int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
40  size_t length = sizeof(info);
41
42  if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
43    return 0;
44
45  return info.ki_rssize * getpagesize();
46}
47
48size_t ProcessMetrics::GetPeakWorkingSetSize() const {
49  return 0;
50}
51
52bool ProcessMetrics::GetMemoryBytes(size_t* private_bytes,
53                                    size_t* shared_bytes) {
54  WorkingSetKBytes ws_usage;
55  if (!GetWorkingSetKBytes(&ws_usage))
56    return false;
57
58  if (private_bytes)
59    *private_bytes = ws_usage.priv << 10;
60
61  if (shared_bytes)
62    *shared_bytes = ws_usage.shared * 1024;
63
64  return true;
65}
66
67bool ProcessMetrics::GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const {
68// TODO(bapt) be sure we can't be precise
69  size_t priv = GetWorkingSetSize();
70  if (!priv)
71    return false;
72  ws_usage->priv = priv / 1024;
73  ws_usage->shareable = 0;
74  ws_usage->shared = 0;
75
76  return true;
77}
78
79double ProcessMetrics::GetCPUUsage() {
80  struct kinfo_proc info;
81  int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ };
82  size_t length = sizeof(info);
83
84  struct timeval now;
85  int retval = gettimeofday(&now, NULL);
86  if (retval)
87    return 0;
88
89  if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0)
90    return 0;
91
92  return (info.ki_pctcpu / FSCALE) * 100.0;
93}
94
95bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const {
96  return false;
97}
98
99size_t GetSystemCommitCharge() {
100  int mib[2], pagesize;
101  unsigned long mem_total, mem_free, mem_inactive;
102  size_t length = sizeof(mem_total);
103
104  if (sysctl(mib, arraysize(mib), &mem_total, &length, NULL, 0) < 0)
105    return 0;
106
107  length = sizeof(mem_free);
108  if (sysctlbyname("vm.stats.vm.v_free_count", &mem_free, &length, NULL, 0) < 0)
109    return 0;
110
111  length = sizeof(mem_inactive);
112  if (sysctlbyname("vm.stats.vm.v_inactive_count", &mem_inactive, &length,
113      NULL, 0) < 0) {
114    return 0;
115  }
116
117  pagesize = getpagesize();
118
119  return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize);
120}
121
122}  // namespace base
123