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| 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 #include <sys/sysctl.h> | |
| 8 #include <sys/user.h> | |
| 9 #include <unistd.h> | |
| 10 | |
| 11 #include "base/sys_info.h" | |
| 12 | |
| 13 namespace base { | |
| 14 | |
| 15 ProcessMetrics::ProcessMetrics(ProcessHandle process) | |
| 16 : process_(process), | |
| 17 last_system_time_(0), | |
| 18 last_cpu_(0) { | |
| 19 processor_count_ = base::SysInfo::NumberOfProcessors(); | |
| 20 } | |
| 21 | |
| 22 // static | |
| 23 ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) { | |
| 24 return new ProcessMetrics(process); | |
| 25 } | |
| 26 | |
| 27 size_t ProcessMetrics::GetPagefileUsage() const { | |
| 28 struct kinfo_proc info; | |
| 29 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; | |
| 30 size_t length = sizeof(info); | |
| 31 | |
| 32 if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0) | |
| 33 return 0; | |
| 34 | |
| 35 return info.ki_size; | |
| 36 } | |
| 37 | |
| 38 size_t ProcessMetrics::GetPeakPagefileUsage() const { | |
| 39 return 0; | |
| 40 } | |
| 41 | |
| 42 size_t ProcessMetrics::GetWorkingSetSize() const { | |
| 43 struct kinfo_proc info; | |
| 44 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; | |
| 45 size_t length = sizeof(info); | |
| 46 | |
| 47 if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0) | |
| 48 return 0; | |
| 49 | |
| 50 return info.ki_rssize * getpagesize(); | |
| 51 } | |
| 52 | |
| 53 size_t ProcessMetrics::GetPeakWorkingSetSize() const { | |
| 54 return 0; | |
| 55 } | |
| 56 | |
| 57 bool ProcessMetrics::GetMemoryBytes(size_t* private_bytes, | |
| 58 size_t* shared_bytes) { | |
| 59 WorkingSetKBytes ws_usage; | |
| 60 if (!GetWorkingSetKBytes(&ws_usage)) | |
| 61 return false; | |
| 62 | |
| 63 if (private_bytes) | |
| 64 *private_bytes = ws_usage.priv << 10; | |
| 65 | |
| 66 if (shared_bytes) | |
| 67 *shared_bytes = ws_usage.shared * 1024; | |
| 68 | |
| 69 return true; | |
| 70 } | |
| 71 | |
| 72 bool ProcessMetrics::GetWorkingSetKBytes(WorkingSetKBytes* ws_usage) const { | |
| 73 // TODO(bapt) be sure we can't be precise | |
| 74 size_t priv = GetWorkingSetSize(); | |
| 75 if (!priv) | |
| 76 return false; | |
| 77 ws_usage->priv = priv / 1024; | |
| 78 ws_usage->shareable = 0; | |
| 79 ws_usage->shared = 0; | |
| 80 | |
| 81 return true; | |
| 82 } | |
| 83 | |
| 84 double ProcessMetrics::GetCPUUsage() { | |
| 85 struct kinfo_proc info; | |
| 86 int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; | |
| 87 size_t length = sizeof(info); | |
| 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 | |
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