91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
// 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 <stddef.h>
|
|
#include <stdint.h>
|
|
#include <sys/param.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include "base/memory/ptr_util.h"
|
|
#include "base/process/process_metrics_iocounters.h"
|
|
#include "base/stl_util.h"
|
|
|
|
namespace base {
|
|
|
|
// static
|
|
std::unique_ptr<ProcessMetrics> ProcessMetrics::CreateProcessMetrics(
|
|
ProcessHandle process) {
|
|
return WrapUnique(new ProcessMetrics(process));
|
|
}
|
|
|
|
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, base::size(mib), NULL, &length, NULL, 0) < 0)
|
|
return -1;
|
|
|
|
mib[5] = (length / sizeof(struct kinfo_proc));
|
|
|
|
if (sysctl(mib, base::size(mib), &info, &length, NULL, 0) < 0)
|
|
return 0;
|
|
|
|
return info.p_pctcpu;
|
|
}
|
|
|
|
double ProcessMetrics::GetPlatformIndependentCPUUsage() {
|
|
TimeTicks time = TimeTicks::Now();
|
|
|
|
if (last_cpu_time_.is_zero()) {
|
|
// First call, just set the last values.
|
|
last_cpu_time_ = time;
|
|
return 0;
|
|
}
|
|
|
|
int cpu = GetProcessCPU(process_);
|
|
|
|
last_cpu_time_ = time;
|
|
double percentage = static_cast<double>((cpu * 100.0) / FSCALE);
|
|
|
|
return percentage;
|
|
}
|
|
|
|
TimeDelta ProcessMetrics::GetCumulativeCPUUsage() {
|
|
NOTREACHED();
|
|
return TimeDelta();
|
|
}
|
|
|
|
ProcessMetrics::ProcessMetrics(ProcessHandle process)
|
|
: process_(process),
|
|
last_cpu_(0) {}
|
|
|
|
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, base::size(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 base
|