123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161 |
- // 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 "butil/process/process_metrics.h"
- #include <sys/param.h>
- #include <sys/sysctl.h>
- namespace butil {
- // static
- ProcessMetrics* ProcessMetrics::CreateProcessMetrics(ProcessHandle process) {
- return 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),
- last_system_time_(0),
- last_cpu_(0) {
- processor_count_ = butil::SysInfo::NumberOfProcessors();
- }
- 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 butil
|