PerformanceCounter Class

Represents an extension of the basic PerformanceCounter providing additional statistical logic.

Definition

Namespace: Gemstone.Diagnostics
Assembly: Gemstone.Diagnostics (in Gemstone.Diagnostics.dll) Version: 1.0.150 -- Release Build+2592e65d65fe0b04e044df0bc79f2e5da6464eee

C#View Source Request Example

public class PerformanceCounter : IDisposable

VBView Source Request Example

Public Class PerformanceCounter
	Implements IDisposable

C++View Source Request Example

public ref class PerformanceCounter : IDisposable

JavaScriptView Source Request Example

Gemstone.Diagnostics.PerformanceCounter = function();

Type.createClass(
	'Gemstone.Diagnostics.PerformanceCounter',
	null,
	IDisposable);

Inheritance: Object PerformanceCounter

Implements: IDisposable

Example

This example shows how to create a performance counter for processor utilization:

C#

using System;
using System.Threading;
using Gemstone.Diagnostics;

class Program
{
    static void Main(string[] args)
    {
        PerformanceCounter counter = new PerformanceCounter("Processor", "% Processor Time", "_Total");
        while (true)
        {
            Thread.Sleep(1000);
            counter.Sample();
            Console.WriteLine(string.Format("Last value: {0}", counter.LastValue));
            Console.WriteLine(string.Format("Minimum value: {0}", counter.MinimumValue));
            Console.WriteLine(string.Format("Maximum value: {0}", counter.MaximumValue));
            Console.WriteLine(string.Format("Average value: {0}", counter.AverageValue));
            Console.WriteLine(new string('-', 30));
        }
    }
}

Constructors

PerformanceCounter(String, String, String)	Initializes a new instance of the PerformanceCounter class.
PerformanceCounter(String, String, String, String)	Initializes a new instance of the PerformanceCounter class.
PerformanceCounter(String, String, String, String, String)	Initializes a new instance of the PerformanceCounter class.
PerformanceCounter(String, String, String, String, String, Single, Boolean)	Initializes a new instance of the PerformanceCounter class.

Properties

AliasName	Gets or sets an alias name for the PerformanceCounter.
AverageValue	Gets the average value from the samples of the BaseCounter.
BaseCounter	Gets the PerformanceCounter object that this PerformanceCounter objects wraps.
LastValue	Gets the last sample value from the samples of the BaseCounter.
LifetimeAverageValue	Gets the average sample value over the entire lifetime of the BaseCounter.
LifetimeMaximumValue	Gets the maximum sample value over the entire lifetime of the BaseCounter.
LifetimeSampleCount	Gets the total values sampled over the entire lifetime of the BaseCounter.
MaximumValue	Gets the maximum sample value from the samples of the BaseCounter.
MinimumValue	Gets the minimum sample value from the samples of the BaseCounter.
SampleAdjuster	Gets or sets an optional custom sample adjustment function. Can be used to apply linear adjustments to sampled values.
SampleFilter	Gets or sets an optional custom sample filter function. Can be used to skip sampled values that are unreasonable.
Samples	Gets a list of sampled values from the BaseCounter
SamplingWindow	Gets or sets the number of samples to use to determine the LastValue, MinimumValue, MaximumValue and AverageValue.
ValueDivisor	Gets or sets the divisor to be applied to the LastValue, MinimumValue, MaximumValue and AverageValue.
ValueUnit	Gets or sets the measurement unit of LastValue, MinimumValue, MaximumValue and AverageValue

Methods

Dispose	Releases all the resources used by the PerformanceCounter object.
Dispose(Boolean)	Releases the unmanaged resources used by the PerformanceCounter object and optionally releases the managed resources.
Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
Finalize	Releases the unmanaged resources before the PerformanceCounter object is reclaimed by GC. (Overrides ObjectFinalize)
GetHashCode	Serves as the default hash function. (Inherited from Object)
GetType	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object)
Reset	Resets the PerformanceCounter object to its initial state.
Sample	Obtains a sample value from the BaseCounter.
ToString	Returns a string that represents the current object. (Inherited from Object)

Fields

DefaultSamplingWindow	Default number of samples over which statistical values are to be calculated.
DefaultValueDivisor	Default divisor to be applied to the statistical value.
DefaultValueUnit	Default measurement unit of the statistical values.