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【CSharp】用C＃实时获取CPU利用率

作者:孟宪会 / 发布于2011/5/3/ 814

<div><!--StartFragment-->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 %.
</div>

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