C#制做进程监视器

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日志文章

2008年03月25日 20:06:45

C#制做进程监视器
1）可以查看进程的各项基本信息，如cpu，内存，父进程，执行路径，创建者等

2）可以中止进程，创建新进程

3）可以配置目标进程，配置刷新速度

最终效果图：

2）使用性能计数器计算cpu利用率

2.1)计算过程

//通过计数器获取idle空闲进程cpu占用率r1；

//通过process类的TotalProcessorTime属性获取各进程的cpu时间，求和，得各进程（除空闲进程idle，该进程无法通过process类获得cpu时间）cpu时间和t1；

//通过t1/(100-r1)得到总cpu时间t；

//对各进程，通过TotalProcessorTime获得进程cpu时间tnew，计算：

(Tnew-told)/t，即得该进程的cpu占用率，其中told是程序中记录的该进程上一次的TotalProcessorTime。

2.2)关于性能计数器

系统会为每个进程分配一个计数器，通过

new PerformanceCounter("Process", "% Processor Time", "进程名称")实例化该计数器，使用计数器对象的NextValue方法可以得到进程占用cpu的百分比（第一次调用NextValue获取的值都为0，之后就没问题了，这个要注意）。

2.3)Idle进程的含义

Idle意为懒散的、无所事事。事实上，idle不能算着一个进程，它用于表示cpu空闲资源，它所占的比率越高，表示你的机器越空闲。

2.4)多核CPU或使用超线程技术的CPU

对于多核或使用超线程技术的cpu，根据计数器求得的idle进程cpu占用比率将超过100%，此时应将idle的cpu利用率/总的cpu利用率，所得作为真正的idle的cpu利用率。

添加命名空间：

using System.Diagnostics;

/**//// <summary>
/// 性能计数器，用于获取CPU空闲百分比
/// </summary>
private static PerformanceCounter mIdle = new PerformanceCounter("Process", "% Processor Time", "Idle");
/**//// <summary>
/// 性能计数器，用于获取CPU总利用率
/// </summary>
private static PerformanceCounter mTotal = new PerformanceCounter("Process", "% Processor Time", "_Total");

private void FillNeedRefreshInfo(params Process[] pCurrentAll)
{
…………
//以下计算CPU利用率
this.mCurrentTotalCpuTime = this.CalCurrentTotalCpuTime();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] for (int i = 0; i < pCurrentAll.Length; i++)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //空闲进程idle
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (pCurrentAll.Id == 0)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mDict[pCurrentAll.Id].CpuPercent = this.mIdleCpuPercent;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] else
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] try
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //无法保证进程不会中途退出，此时无法获取其Cpu时间
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] long ms = (long)pCurrentAll.TotalProcessorTime.TotalMilliseconds;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] double d = (ms - this.mDict[pCurrentAll.Id].OldCpuTime) * 1.0 / this.mCurrentTotalCpuTime;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mDict[pCurrentAll.Id].CpuPercent = d;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mDict[pCurrentAll.Id].OldCpuTime = ms;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] catch
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //调用刷新事件
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (this.HandleProceRefresh != null)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.HandleProceRefresh(this.mDict[pCurrentAll.Id], 100 - this.mIdleCpuPercent);
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img] private double CalCurrentTotalCpuTime()
[img]http://www.itwis.com/upimg/allimg/080325/1501572.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/1501573.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] double d = 0;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //获取性能计数器值
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] double idlePercent = mIdle.NextValue();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] double totalPercent = mTotal.NextValue();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //避免除0异常
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (totalPercent == 0)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mIdleCpuPercent = 0;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] else
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //可能遇到多核或超线程CPU，CPU空闲进程比率不能直接使用计数器的值
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mIdleCpuPercent = idlePercent * 100 / totalPercent;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //以下获取上一次计算至当前总的非空闲CPU时间
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] foreach (Process p in this.mCurrentAll)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //对空闲进程及中途退出的进程不做处理
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (p.Id == 0 || p.HasExited)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] continue;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (this.mDict ==null || !this.mDict.ContainsKey(p.Id))
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] d += p.TotalProcessorTime.TotalMilliseconds;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] else
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] d += p.TotalProcessorTime.TotalMilliseconds - this.mDict[p.Id].OldCpuTime;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //当前非空闲CPU时间/当前非空闲时间所占比率=当前总CPU时间
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //return d / (totalPercent - idlePercent);
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] return d / (100 - mIdleCpuPercent);
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]

（以下给出部分代码，其余像进程的创建、中止等，使用process类将很容易实现）

1）使用wmi获取父进程id，进程创建者

（注意，使用wmi获得的内容，不宜循环刷新，这样代价比较大）

添加命名空间：

using System.Management;

[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501572.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/1501573.gif[/img] /**//// <summary>
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] /// 使用Wmi获取指定进程的创建者等信息
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] /// </summary>
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] /// <param name="pID">进程ID</param>
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img] private void FillDetailUseWmi(int pID)
[img]http://www.itwis.com/upimg/allimg/080325/1501572.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/1501573.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * From Win32_Process Where ProcessID=" + pID);
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] ManagementObjectCollection moc = searcher.Get();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] ManagementOperationObserver observer = new ManagementOperationObserver();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] HandleObjectReady hor = new HandleObjectReady();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //监测异步方法是否已成功返回
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] observer.ObjectReady += new ObjectReadyEventHandler(hor.Done);
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] foreach (ManagementObject mo in moc)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //异步调用该对象的GetOwner方法，获取进程创建者
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] mo.InvokeMethod(observer, "GetOwner", null);
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //等待异步调用返回
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] while (!hor.Complete)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] System.Threading.Thread.Sleep(500);
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] string user = "";
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //判断获取用户名的操作是否成功
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (hor.Obj["returnValue"].ToString() == "0")
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] user = hor.Obj.Properties["User"].Value.ToString();
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //判断字典中是否已移除该项
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (!this.mDict.ContainsKey(pID))
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] return;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (mo["ParentProcessID"] != null && this.mDict.ContainsKey(Convert.ToInt32(mo["ParentProcessID"])))
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //根据父进程ID获取父进程名称
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mDict[pID].ParentProce = this.mDict[Convert.ToInt32(mo["ParentProcessID"])].ProceName;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.mDict[pID].Creator = user;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //触发刷新进程详细信息事件
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] if (this.HandleDetailList != null)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] this.HandleDetailList(this.mDict[pID]);
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] //释放资源
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] searcher.Dispose();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] searcher = null;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] moc.Dispose();
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] moc = null;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] observer = null;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] hor = null;
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501572.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/1501573.gif[/img] /**//// <summary>
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] /// 该类用于监测Wmi异步调用方法是否已经返回
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] /// </summary>
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img] public class HandleObjectReady
[img]http://www.itwis.com/upimg/allimg/080325/1501572.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/1501573.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] private bool complete = false;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] private ManagementBaseObject obj;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] public void Done(object sender, ObjectReadyEventArgs e)
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] complete = true;
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] obj = e.NewObject;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] public bool Complete
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] get
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] return complete;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] public ManagementBaseObject Obj
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] get
[img]http://www.itwis.com/upimg/allimg/080325/15015720.gif[/img][img]http://www.itwis.com/upimg/allimg/080325/15015721.gif[/img] [img]http://www.itwis.com/upimg/allimg/080325/15015710.gif[/img]{
[img]http://www.itwis.com/upimg/allimg/080325/1501574.gif[/img] return obj;
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/15015731.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501576.gif[/img] }
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]
[img]http://www.itwis.com/upimg/allimg/080325/1501571.gif[/img]