发布：2022/12/17 17:22:10作者：管理员 来源：本站 浏览次数：714

为了解决Windows服务器突发CPU使用率100%，每次想进入系统查看情况又无法远程登录系统，所以为了方便以后能够查看是哪个进程占用CPU高，只有自己写一个控制台程序来记录CPU实时运行情况。

实例：

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Management;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using log4net;
using System.Configuration;
namespace WinCpu
{
    class Program
    {
        static ILog _log = LogManager.GetLogger("Program");
        [DllImport("user32.dll", EntryPoint = "ShowWindow", SetLastError = true)]
        static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);
        [DllImport("user32.dll", EntryPoint = "FindWindow", SetLastError = true)]
        public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
        
        static void Main()
        {
            var _cpu_value = int.Parse(ConfigurationManager.AppSettings["cpu"]);
            var _is_win_show = uint.Parse(ConfigurationManager.AppSettings["is_win_show"]);
            Console.Title = "WAHAHA";
            IntPtr intptr = FindWindow("ConsoleWindowClass", "WAHAHA");
            if (intptr != IntPtr.Zero)
            {
                ShowWindow(intptr, _is_win_show);//隐藏这个窗口
            }
            var counterList = new List<PerformanceCounter>();
            var clist = new List<ProcessInfo>();
            while (true)
            {
                //var procDict = new Dictionary<string, float>();
                var procDict = new List<ProcessInfoModel>();
                Process.GetProcesses().ToList().ForEach(p =>
                {
                    //using (p)
                    //    if (counterList
                    //        .FirstOrDefault(c => c.InstanceName == p.ProcessName) == null)
                    //        counterList.Add(
                    //            new PerformanceCounter("Process", "% Processor Time",
                    //                p.ProcessName, true));

                    using (p)
                    {
                        //var name = string.Empty;
                        //foreach (var instance in new PerformanceCounterCategory("Process").GetInstanceNames())
                        //{
                        //    if (instance.StartsWith(p.ProcessName))
                        //    {
                        //        using (var processId = new PerformanceCounter("Process", "ID Process", instance, true))
                        //        {
                        //            if (p.Id == (int)processId.RawValue)
                        //            {
                        //                name = instance;
                        //                break;
                        //            }
                        //        }
                        //    }
                        //}
                        
                        
                        if (clist.FirstOrDefault(c => c.info.InstanceName == p.ProcessName) == null)
                        {
                            var _name = GetProcessUserName(p.Id);
                            var cpu = new PerformanceCounter("Process", "% Processor Time", p.ProcessName, true);
                            clist.Add(
                                    new ProcessInfo
                                    {
                                        pid = p.Id,
                                        name = _name,
                                        info = cpu
                                    });
                        }
                            
                    }

                });

                clist.ForEach(c =>
                {
                    try
                    {
                        
                        // http://social.technet.microsoft.com/wiki/contents/
                        // articles/12984.understanding-processor-processor-
                        // time-and-process-processor-time.aspx
                        // This value is calculated over the base line of
                        // (No of Logical CPUS * 100), So this is going to be a
                        // calculated over a baseline of more than 100.
                        var percent = c.info.NextValue() / Environment.ProcessorCount;
                        if (percent == 0)
                            return;

                        // Uncomment if you want to filter the "Idle" process
                        //if (c.InstanceName.Trim().ToLower() == "idle")
                        //    return;
                        //procDict[c.info.InstanceName] = percent;
                        procDict.Add(new ProcessInfoModel {
                            pid=c.pid,
                            name= c.name,
                            key = c.info.InstanceName,
                            value= percent

                        });
                    }
                    catch (InvalidOperationException) { /* some will fail */ }
                });
                Console.Clear();
                procDict.OrderByDescending(d => d.value).ToList()
                    .ForEach(d => {
                        Console.WriteLine("{0:00.00}% - {1} - {2} - {3}", d.value, d.key, d.name,d.pid);
                        if(d.value> _cpu_value && d.key!= "Idle")
                        _log.Info(string.Format("{0:00.00}% - {1} - {2}", d.value, d.key,d.name));
                    });
                Thread.Sleep(1000);
            }

        }
        /// <summary>
        /// 获得进程的用户名
        /// </summary>
        /// <param name="pID"></param>
        /// <returns></returns>
        private static string GetProcessUserName(int pID)
        {
            string text1 = null;
            SelectQuery query1 =
                new SelectQuery("Select * from Win32_Process WHERE processID=" + pID);
            ManagementObjectSearcher searcher1 = new ManagementObjectSearcher(query1);
            try
            {
                foreach (ManagementObject disk in searcher1.Get())
                {
                    ManagementBaseObject inPar = null;
                    ManagementBaseObject outPar = null;
                    inPar = disk.GetMethodParameters("GetOwner");
                    outPar = disk.InvokeMethod("GetOwner", inPar, null);
                    text1 = outPar["User"].ToString();
                    break;
                }
            }
            catch
            {
                text1 = "SYSTEM";
            }
            return text1;
        }
        public class ProcessInfo {
            public int pid { get; set; }
            public string name { get; set; }
            public PerformanceCounter info { get; set; }
        }
        public class ProcessInfoModel {
            public int pid { get; set; }
            public string name { get; set; }
            public string key { get; set; }
            public float value { get; set; }

        }
    }
}