base/process/process_metrics_freebsd.cc

   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
   7 namespace base {
   8
   9 ProcessMetrics::ProcessMetrics(ProcessHandle process)
  10     : process_(process),
  11       last_cpu_time_(0),
  12       last_system_time_(0),
  13       last_cpu_(0) {
  14   processor_count_ = base::SysInfo::NumberOfProcessors();
  15 }
  16
  17 // static
  18 ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
  19   return new ProcessMetrics(process);
  20 }
  21
  22 size_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
  33 size_t ProcessMetrics::GetPeakPagefileUsage() const {
  34   return 0;
  35 }
  36
  37 size_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
  48 size_t ProcessMetrics::GetPeakWorkingSetSize() const {
  49   return 0;
  50 }
  51
  52 bool 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
  67 bool 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
  79 double 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
  95 bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const {
  96   return false;
  97 }
  98
  99 size_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