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CounterCreationDataCollection (Clase)

Proporciona una colección de objetos CounterCreationData con establecimiento inflexible de tipos.

Espacio de nombres: System.Diagnostics
Ensamblado: System (en system.dll)

'Declaración
<SerializableAttribute> _
Public Class CounterCreationDataCollection
	Inherits CollectionBase
'Uso
Dim instance As CounterCreationDataCollection

/** @attribute SerializableAttribute() */ 
public class CounterCreationDataCollection extends CollectionBase
SerializableAttribute 
public class CounterCreationDataCollection extends CollectionBase

Imports System
Imports System.Collections
Imports System.Collections.Specialized
Imports System.Diagnostics

 _

Public Class App
   
   Private Shared PC As PerformanceCounter
   Private Shared BPC As PerformanceCounter
   
   
   Public Shared Sub Main()
      
      Dim samplesList As New ArrayList()
      
      SetupCategory()
      CreateCounters()
      CollectSamples(samplesList)
      CalculateResults(samplesList)
   End Sub 'Main
    
   
   
   Private Shared Function SetupCategory() As Boolean
      If Not PerformanceCounterCategory.Exists("AverageCounter64SampleCategory") Then
         
         Dim CCDC As New CounterCreationDataCollection()
         
         ' Add the counter.
         Dim averageCount64 As New CounterCreationData()
         averageCount64.CounterType = PerformanceCounterType.AverageCount64
         averageCount64.CounterName = "AverageCounter64Sample"
         CCDC.Add(averageCount64)
         
         ' Add the base counter.
         Dim averageCount64Base As New CounterCreationData()
         averageCount64Base.CounterType = PerformanceCounterType.AverageBase
         averageCount64Base.CounterName = "AverageCounter64SampleBase"
         CCDC.Add(averageCount64Base)
         
         ' Create the category.
         PerformanceCounterCategory.Create("AverageCounter64SampleCategory", "Demonstrates usage of the AverageCounter64 performance counter type.", CCDC)
         
         Return True
      Else
         Console.WriteLine("Category exists - AverageCounter64SampleCategory")
         Return False
      End If
   End Function 'SetupCategory
   
   
   Private Shared Sub CreateCounters()
      ' Create the counters.

      PC = New PerformanceCounter("AverageCounter64SampleCategory", "AverageCounter64Sample", False)
      
      BPC = New PerformanceCounter("AverageCounter64SampleCategory", "AverageCounter64SampleBase", False)
      
      
      PC.RawValue = 0
      BPC.RawValue = 0
   End Sub 'CreateCounters
   
   
   Private Shared Sub CollectSamples(samplesList As ArrayList)
      
      Dim r As New Random(DateTime.Now.Millisecond)
      
      ' Loop for the samples.
      Dim j As Integer
      For j = 0 To 99
         
         Dim value As Integer = r.Next(1, 10)
         Console.Write((j + " = " + value))
         
         PC.IncrementBy(value)
         
         BPC.Increment()
         
         If j Mod 10 = 9 Then
            OutputSample(PC.NextSample())
            samplesList.Add(PC.NextSample())
         Else
            Console.WriteLine()
         End If 
         System.Threading.Thread.Sleep(50)
      Next j
   End Sub 'CollectSamples
    
   
   Private Shared Sub CalculateResults(samplesList As ArrayList)
      Dim i As Integer
      For i = 0 To (samplesList.Count - 1) - 1
         ' Output the sample.
         OutputSample(CType(samplesList(i), CounterSample))
         OutputSample(CType(samplesList((i + 1)), CounterSample))
         
         ' Use .NET to calculate the counter value.
         Console.WriteLine((".NET computed counter value = " + CounterSampleCalculator.ComputeCounterValue(CType(samplesList(i), CounterSample), CType(samplesList((i + 1)), CounterSample))))
         
         ' Calculate the counter value manually.
         Console.WriteLine(("My computed counter value = " + MyComputeCounterValue(CType(samplesList(i), CounterSample), CType(samplesList((i + 1)), CounterSample))))
      Next i
   End Sub 'CalculateResults
   
   
   
   
   '++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++
   '	Description - This counter type shows how many items are processed, on average,
   '		during an operation. Counters of this type display a ratio of the items 
   '		processed (such as bytes sent) to the number of operations completed. The  
   '		ratio is calculated by comparing the number of items processed during the 
   '		last interval to the number of operations completed during the last interval. 
   ' Generic type - Average
   '  	Formula - (N1 - N0) / (D1 - D0), where the numerator (N) represents the number 
   '		of items processed during the last sample interval and the denominator (D) 
   '		represents the number of operations completed during the last two sample 
   '		intervals. 
   '	Average (Nx - N0) / (Dx - D0)  
   '	Example PhysicalDisk\ Avg. Disk Bytes/Transfer 
   '++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++
   Private Shared Function MyComputeCounterValue(s0 As CounterSample, s1 As CounterSample) As [Single]
      Dim numerator As [Single] = CType(s1.RawValue, [Single]) - CType(s0.RawValue, [Single])
      Dim denomenator As [Single] = CType(s1.BaseValue, [Single]) - CType(s0.BaseValue, [Single])
      Dim counterValue As [Single] = numerator / denomenator
      Return counterValue
   End Function 'MyComputeCounterValue
   
   
   ' Output information about the counter sample.
   Private Shared Sub OutputSample(s As CounterSample)
      Console.WriteLine(ControlChars.Lf + ControlChars.Cr + "+++++++++++")
      Console.WriteLine("Sample values - " + ControlChars.Lf + ControlChars.Cr)
      Console.WriteLine(("   BaseValue        = " + s.BaseValue))
      Console.WriteLine(("   CounterFrequency = " + s.CounterFrequency))
      Console.WriteLine(("   CounterTimeStamp = " + s.CounterTimeStamp))
      Console.WriteLine(("   CounterType      = " + s.CounterType))
      Console.WriteLine(("   RawValue         = " + s.RawValue))
      Console.WriteLine(("   SystemFrequency  = " + s.SystemFrequency))
      Console.WriteLine(("   TimeStamp        = " + s.TimeStamp))
      Console.WriteLine(("   TimeStamp100nSec = " + s.TimeStamp100nSec))
      Console.WriteLine("++++++++++++++++++++++")
   End Sub 'OutputSample
End Class 'App

import System.*;  
import System.Collections.*;  
import System.Collections.Specialized.*;  
import System.Diagnostics.*;  

public class App
{
    private static PerformanceCounter pc;
    private static PerformanceCounter bpc;

    public static void main(String[] args)
    {
        ArrayList samplesList = new ArrayList();
        SetupCategory();
        CreateCounters();
        CollectSamples(samplesList);
        CalculateResults(samplesList);
    } //main

    private static boolean SetupCategory()
    {
        if (!(PerformanceCounterCategory.Exists(
            "AverageCounter64SampleCategory"))) {
            CounterCreationDataCollection ccdc = 
                new CounterCreationDataCollection();
            // Add the counter.
            CounterCreationData averageCount64 = new CounterCreationData();
            averageCount64.
                set_CounterType(PerformanceCounterType.AverageCount64);
            averageCount64.set_CounterName("AverageCounter64Sample");
            ccdc.Add(averageCount64);
            // Add the base counter.
            CounterCreationData averageCount64Base = new CounterCreationData();
            averageCount64Base.set_CounterType(PerformanceCounterType.
                AverageBase);
            averageCount64Base.set_CounterName("AverageCounter64SampleBase");
            ccdc.Add(averageCount64Base);
            // Create the category.
            PerformanceCounterCategory.Create("AverageCounter64SampleCategory",
                "Demonstrates usage of the AverageCounter64 performance "
                + "counter type.", ccdc);
            return true;
        }
        else {
            Console.WriteLine("Category exists - AverageCounter64SampleCategory");
            return false;
        }
    } //SetupCategory

    private static void CreateCounters()
    {
        // Create the counters.
        pc = new PerformanceCounter("AverageCounter64SampleCategory",
            "AverageCounter64Sample", false);
        bpc = new PerformanceCounter("AverageCounter64SampleCategory",
            "AverageCounter64SampleBase", false);
        pc.set_RawValue(0);
        bpc.set_RawValue(0);
    } //CreateCounters

    private static void CollectSamples(ArrayList samplesList)
    {
        Random r = new Random(DateTime.get_Now().get_Millisecond());
        // Loop for the samples.
        for (int j = 0; j < 100; j++) {
            int value = r.Next(1, 10);
            Console.Write(j + " = " + value);
            pc.IncrementBy(value);
            bpc.Increment();

            if (j % 10 == 9) {
                OutputSample(pc.NextSample());
                samplesList.Add(pc.NextSample());
            }
            else {
                Console.WriteLine();
            }
            System.Threading.Thread.Sleep(50);
        }
    } //CollectSamples

    private static void CalculateResults(ArrayList samplesList)
    {
        for (int i = 0; i < samplesList.get_Count() - 1; i++) {
            // Output the sample.
            OutputSample((CounterSample)samplesList.get_Item(i));
            OutputSample((CounterSample)samplesList.get_Item(i + 1));
            // Use.NET to calculate the counter value.
            Console.WriteLine(".NET computed counter value = " 
                + CounterSampleCalculator.ComputeCounterValue((CounterSample)
                samplesList.get_Item(i), 
                (CounterSample)samplesList.get_Item(i + 1)));
            // Calculate the counter value manually.
            Console.WriteLine("My computed counter value = "
                + MyComputeCounterValue((CounterSample)samplesList.get_Item(i),
                (CounterSample)samplesList.get_Item(i + 1)));
        }
    } //CalculateResults

    //++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++
    //++++++++
    //    Description - This counter type shows how many items are processed, 
    //        on average,during an operation.Counters of this type display a
    //        ratio of the items processed (such as bytes sent) to the number
    //        of operations completed. The ratio is calculated by comparing
    //        the number of items processed during the last interval to the 
    //        number of operations completed during the last interval. 
    //  Generic type - Average
    //        Formula - (N1 - N0) / (D1 - D0), where the numerator (N) 
    //        represents the number of items processed during the last sample
    //        interval and the denominator (D) represents the number of
    //        operations completed during the last two sample 
    //        intervals. 
    //    Average (Nx - N0) / (Dx - D0)  
    //    Example PhysicalDisk\ Avg. Disk Bytes/Transfer 
    //++++++++//++++++++//++++++++//++++++++//++++++++//++++++++//++++++++
    //++++++++
    private static float MyComputeCounterValue(CounterSample s0,
        CounterSample s1)
    {
        float numerator = (float)s1.get_RawValue() - (float)s0.get_RawValue();
        float denomenator = (float)s1.get_BaseValue() - (float)s0.
            get_BaseValue();
        float counterValue = numerator / denomenator;
        return counterValue;
    } //MyComputeCounterValue

    // Output information about the counter sample.
    private static void OutputSample(CounterSample s)
    {
        Console.WriteLine("\r\n+++++++++++");
        Console.WriteLine("Sample values - \r\n");
        Console.WriteLine("   BaseValue        = " + s.get_BaseValue());
        Console.WriteLine("   CounterFrequency = " + s.get_CounterFrequency());
        Console.WriteLine("   CounterTimeStamp = " + s.get_CounterTimeStamp());
        Console.WriteLine("   CounterType      = " + s.get_CounterType());
        Console.WriteLine("   RawValue         = " + s.get_RawValue());
        Console.WriteLine("   SystemFrequency  = " + s.get_SystemFrequency());
        Console.WriteLine("   TimeStamp        = " + s.get_TimeStamp());
        Console.WriteLine("   TimeStamp100nSec = " + s.get_TimeStamp100nSec());
        Console.WriteLine("++++++++++++++++++++++");
    } //OutputSample
} //App

System.Object
   System.Collections.CollectionBase
    System.Diagnostics.CounterCreationDataCollection

Los miembros estáticos públicos (Shared en Visual Basic) de este tipo son seguros para la ejecución de subprocesos. No se garantiza que los miembros de instancias sean seguros para la ejecución de subprocesos.

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center, Windows XP Professional x64, Windows XP SP2, Windows XP Starter Edition

.NET Framework no admite todas las versiones de cada plataforma. Para obtener una lista de las versiones admitidas, vea Requisitos del sistema.

.NET Framework

Compatible con: 2.0, 1.1, 1.0

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