using System;

using System.Diagnostics;

using System.Threading;

public class CpuLoadInfo

{

// auxiliary print methods

private static void Say ( string txt )

{

 Console.WriteLine(txt);

}

// auxiliary print methods

private static void Say()

{

 Say("");

}

// The main method. Command line arguments are ignored.

[STAThread]

public static void Main()

{

 Say("$Id: CpuLoadInfo.cs,v 1.2 2002/08/17 17:45:48 rz65 Exp $");

 Say();

 Say("Attempt to create a PerformanceCounter instance:");

 Say("Category name = " + CategoryName);

 Say("Counter name = " + CounterName);

 Say("Instance name = " + InstanceName);

 PerformanceCounter pc

  = new PerformanceCounter(CategoryName,CounterName,InstanceName);

 Say("Performance counter was created.");

 Say("Property CounterType: " + pc.CounterType);

 Say();

 Say("Property CounterHelp: " + pc.CounterHelp);

 Say();

 Say("Entering measurement loop.");

 while (true)

 {

  Thread.Sleep(1000); // wait for 1 second

  float cpuLoad = pc.Nextvalue();

  Say("CPU load = " + cpuLoad + " %.");

 }

}  

// constants used to select the performance counter.

private const string CategoryName = "Processor";

private const string CounterName = "% Processor Time";

private const string InstanceName = "_Total";

}

这是在我计算机上的计算结果：

Entering measurement loop.

CPU load = 0 %.

CPU load = 1.941746 %.

CPU load = 4.854369 %.

CPU load = 10 %.

CPU load = 0 %.

CPU load = 2.999997 %.

CPU load = 0.9900987 %.

CPU load = 0 %.