using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace 进程监控
{
class Program
{
static void Main(string[] args)
{
Process[] processes = Process.GetProcessesByName("taskmgr");

foreach (Process instance in processes)
{
Console.WriteLine("");
Console.WriteLine("ProcessName:" + instance.ProcessName);
try
{
//Console.WriteLine("提交大小\t" + instance.PagedMemorySize64 / 1024);
Console.WriteLine("工作设置(内存)\t" + instance.WorkingSet64 / 1024);
Console.WriteLine("线程数\t" + instance.Threads.Count);
Console.WriteLine("句柄数\t" + instance.HandleCount);

}
catch { }
}

Process p = processes[1];
//PerformanceCounter ramCounter = new PerformanceCounter("Process", "Working Set", p.ProcessName);
//PerformanceCounter cpuCounter = new PerformanceCounter("Process", "% Processor Time", p.ProcessName);

var objQuery = new ObjectQuery("select * from Win32_Process WHERE ProcessID = " + p.Id);
var moSearcher = new ManagementObjectSearcher(objQuery);
DateTime firstSample = DateTime.MinValue, secondSample = DateTime.MinValue;

double ProcessorUsage;
double msPassed;
ulong u_OldCPU = 0;
while (true)
{
var gets = moSearcher.Get();
foreach (ManagementObject mObj in gets)
{
try
{
if (firstSample == DateTime.MinValue)
{
firstSample = DateTime.Now;
mObj.Get();
u_OldCPU = (ulong)mObj["UserModeTime"] + (ulong)mObj["KernelModeTime"];
}
else
{
secondSample = DateTime.Now;
mObj.Get();
ulong u_newCPU = (ulong)mObj["UserModeTime"] + (ulong)mObj["KernelModeTime"];

msPassed = (secondSample - firstSample).TotalMilliseconds;
ProcessorUsage = (u_newCPU - u_OldCPU) / (msPassed * 100.0 * Environment.ProcessorCount);

u_OldCPU = u_newCPU;
firstSample = secondSample;
Console.WriteLine("ProcessorUsage:" + (int)ProcessorUsage);
}

}
catch (Exception ex)
{
Console.WriteLine(ex.Message + ex.StackTrace);
Console.WriteLine(ex.InnerException.Message);
}
}
Thread.Sleep(1000);
}
Console.ReadLine();
}
}
}

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/p/6336593.html，如需转载请自行联系原作者