在c＃中的自定义性能计数器/ perfmon

您好我正在尝试创建一个自定义性能计数器在perfmon中使用。下面的代码工作得很好，但我有一个问题..但我有一个问题..在c＃中的自定义性能计数器/ perfmon

有了这个解决方案，我有一个计时器更新性能计数器的值，但我想不必运行此可执行文件来获取我需要的数据。这就是我希望能够将计数器安装为一次性事件，然后对数据进行perfmon查询（与所有预先安装的计数器一样）。

我该如何做到这一点？

using System; 
using System.Diagnostics; 
using System.Net.NetworkInformation; 

namespace PerfCounter 
{ 
class PerfCounter 
{ 
    private const String categoryName = "Custom category"; 
    private const String counterName = "Total bytes received"; 
    private const String categoryHelp = "A category for custom performance counters"; 
    private const String counterHelp = "Total bytes received on network interface"; 
    private const String lanName = "Local Area Connection"; // change this to match your network connection 
    private const int sampleRateInMillis = 1000; 
    private const int numberofSamples = 100; 

    private static NetworkInterface lan = null; 
    private static PerformanceCounter perfCounter; 

    static void Main(string[] args) 
    { 
     setupLAN(); 
     setupCategory(); 
     createCounters(); 
     updatePerfCounters(); 
    } 

    private static void setupCategory() 
    { 
     if (!PerformanceCounterCategory.Exists(categoryName)) 
     { 
      CounterCreationDataCollection counterCreationDataCollection = new CounterCreationDataCollection(); 
      CounterCreationData totalBytesReceived = new CounterCreationData(); 
      totalBytesReceived.CounterType = PerformanceCounterType.NumberOfItems64; 
      totalBytesReceived.CounterName = counterName; 
      counterCreationDataCollection.Add(totalBytesReceived); 
      PerformanceCounterCategory.Create(categoryName, categoryHelp, PerformanceCounterCategoryType.MultiInstance, counterCreationDataCollection); 
     } 
     else 
      Console.WriteLine("Category {0} exists", categoryName); 
    } 

    private static void createCounters() { 
     perfCounter = new PerformanceCounter(categoryName, counterName, false); 
     perfCounter.RawValue = getTotalBytesReceived(); 
    } 

    private static long getTotalBytesReceived() 
    { 
     return lan.GetIPv4Statistics().BytesReceived; 
    } 

    private static void setupLAN() 
    { 
     NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces(); 
     foreach (NetworkInterface networkInterface in interfaces) 
     { 
      if (networkInterface.Name.Equals(lanName)) 
       lan = networkInterface; 
     } 
    } 
    private static void updatePerfCounters() 
    { 
     for (int i = 0; i < numberofSamples; i++) 
     { 
      perfCounter.RawValue = getTotalBytesReceived(); 
      Console.WriteLine("perfCounter.RawValue = {0}", perfCounter.RawValue); 
      System.Threading.Thread.Sleep(sampleRateInMillis); 
     } 
    } 
}

}

来源

2011-10-03 sreddy

在Win32中，性能计数器由具有性能监视器加载DLL，其提供的计数器值工作。

在.NET中，此DLL是一个存根，它使用共享内存与正在运行的.NET进程进行通信。该进程周期性地将新值推送到共享内存块，并且该DLL使它们作为性能计数器可用。

因此，基本上，您可能必须在本地代码中实现性能计数器DLL，因为.NET性能计数器假定有一个进程正在运行。

来源

2011-10-03 10:52:18

在c＃中的自定义性能计数器/ perfmon

回答

相关问题