| // 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 <sys/sysctl.h> |
| #include <sys/user.h> |
| #include <unistd.h> |
| |
| #include "base/sys_info.h" |
| |
| namespace base { |
| |
| ProcessMetrics::ProcessMetrics(ProcessHandle process) |
| : process_(process), |
| last_system_time_(0), |
| last_cpu_(0) { |
| processor_count_ = base::SysInfo::NumberOfProcessors(); |
| } |
| |
| // static |
| ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) { |
| return new ProcessMetrics(process); |
| } |
| |
| size_t ProcessMetrics::GetPagefileUsage() const { |
| struct kinfo_proc info; |
| int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; |
| size_t length = sizeof(info); |
| |
| if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0) |
| return 0; |
| |
| return info.ki_size; |
| } |
| |
| size_t ProcessMetrics::GetPeakPagefileUsage() const { |
| return 0; |
| } |
| |
| size_t ProcessMetrics::GetWorkingSetSize() const { |
| struct kinfo_proc info; |
| int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; |
| size_t length = sizeof(info); |
| |
| if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0) |
| return 0; |
| |
| return info.ki_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; |
| } |
| |
| double ProcessMetrics::GetCPUUsage() { |
| struct kinfo_proc info; |
| int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process_ }; |
| size_t length = sizeof(info); |
| |
| if (sysctl(mib, arraysize(mib), &info, &length, NULL, 0) < 0) |
| return 0; |
| |
| return (info.ki_pctcpu / FSCALE) * 100.0; |
| } |
| |
| bool ProcessMetrics::GetIOCounters(IoCounters* io_counters) const { |
| return false; |
| } |
| |
| size_t GetSystemCommitCharge() { |
| int mib[2], pagesize; |
| unsigned long mem_total, mem_free, mem_inactive; |
| size_t length = sizeof(mem_total); |
| |
| if (sysctl(mib, arraysize(mib), &mem_total, &length, NULL, 0) < 0) |
| return 0; |
| |
| length = sizeof(mem_free); |
| if (sysctlbyname("vm.stats.vm.v_free_count", &mem_free, &length, NULL, 0) < 0) |
| return 0; |
| |
| length = sizeof(mem_inactive); |
| if (sysctlbyname("vm.stats.vm.v_inactive_count", &mem_inactive, &length, |
| NULL, 0) < 0) { |
| return 0; |
| } |
| |
| pagesize = getpagesize(); |
| |
| return mem_total - (mem_free*pagesize) - (mem_inactive*pagesize); |
| } |
| |
| } // namespace base |