Simple creation of a performance counter

The role of performance monitoring

Performance monitoring can be used to obtain general messages about the normal behavior of the application, and performance monitoring is a powerful tool that helps to understand the workload of the system, observing changes and trends, especially applications running on the server

Second, performance monitoring Class (System.Diagnostics):
PerformanceCounter class: Monitor count and write count. You can also use this class to create a new performance category
PerformanceCounterCategory class: You can view all of the existing categories and create categories. You can programmatically get all the counters in a category
Performancecounterinstall class: For installing performance counters

III. Create a performance category (two ways to create):

1, Graphical creation:

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2, Code creation + operation (can monitor performance counts for different applications):

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 using System;using System.Collections.Generic;using System.ComponentModel;using  system.data;using system.drawing;using system.linq;using system.text;using  system.threading.tasks;using system.windows.forms;using system.windows.threading;using  System.diagnostics;namespace performancecounttest2{    public partial class  form1 : form    {        // Instance name of the performance counter         private const string _ newperformancecountername =  "PerformanceCountTest2";         Type name of the performance counter         private const string _ performancecountercategoryname =  "Myzhangdi";         // Performance counter name         private sortedlist<string, tuple<string, string>> _performancecounternames;         //-----Performance Counter (component)         //record the number of button clicks          private PerformanceCounter buttonClickCount;         //Record button hits per second         private  performancecounter buttonclickcountsec;        //the number of clicks per second that the button holds         private int Record_buttonClickCount = 0;         //Initialize performance counter name          Private void initialzieperformancecounternames ()         {             _PerformanceCounterNames =  New sortedlist<strinG, tuple<string, string>> ();             _performancecounternames.add ("Buttonclickcount",  tuple.create ("Buttonclickcount",  " Record the number of button clicks "));             _ Performancecounternames.add ("Buttonclickcountsec",  tuple.create ("Buttonclickcountsec",  "record button hits per second" ));         }        // Initialize performance counters (components)         private void  Initializeperformancecounter ()         {             buttonClickCount = new PerformanceCounter             {                 categoryname = _performancecountercategoryname,//performance counter type name                  countername = _performancecounternames["Buttonclickcount"]. item1,//Performance counter name                  MachineName =  ".",//local computer                  instancelifetime = performancecounterinstancelifetime.process,//life cycle                 ReadOnly  = false,//can write                  instancename = _newperformancecountername//Instance Name              };             Buttonclickcountsec = new performancecounter            {                 categoryname = _ performancecountercategoryname,//performance counter type name                  countername = _performancecounternames["ButtonClickCountSec"]. item1,//Performance counter name                  MachineName =  ".",//local computer                  instancelifetime = performancecounterinstancelifetime.process,//life cycle                 ReadOnly  = false,//can write                  instancename = _newperformancecountername//Instance Name             };         }        //Register Performance Counters          private void registerperformancecounter ()          {            //determine if this counter type name exists             if  (! Performancecountercategory.exists (_performancecountercategoryname))              {                 var CounterCreationDatas = new CounterCreationData[2];                 countercreationdatas[0] =  new countercreationdata                {                     countername =  _performancecounternames["Buttonclickcount"]. item1,                     counterhelp = _performancecounternames["Buttonclickcount"]. item2,                     CounterType = PerformanceCounterType.NumberOfItems32                 };                 CounterCreationDatas[1] = new  countercreationdata               & nbSp {                     countername = _performancecounternames["Buttonclickcountsec"]. item1,                     counterhelp = _performancecounternames["Buttonclickcountsec"]. item2,                     CounterType = PerformanceCounterType.RateOfCountsPerSecond32                 };                 countercreationdatacollection counts  = new countercreationdatacollection (Countercreationdatas);                 //Creating a ClassType                  Performancecountercategory.create (_performancecountercategoryname,  "type description",  performancecountercategorytype.multiinstance, counts);             }        }          public form1 ()         {             initializecomponent ();         }        private void form1_load (object  Sender, eventargs e)         {             initialzieperformancecounternames ();             initializeperformanCecounter ();             dispatchertimer timer  = new dispatchertimer (Timespan.fromseconds (1),                 DispatcherPriority.Background,                 delegate                 {                     //the number of clicks per second that the button is placed on   assigned to   the number of clicks per second                      buttonclickcountsec.rawvalue = this. record_buttonclickcount;                     //initialization value (variable that holds the number of clicks per second of the button)                      This. record_buttonclickcount = 0;                 },                 Dispatcher.CurrentDispatcher                 );             // Turn on Time counter             timer. Start ();         }        ///  <summary>        ///  Register Performance Counters          /// </summary>        /// < Param name= "Sender" ></param>        /// <param name= "E" ></param>         private void button1_click (Object sender, eventargs  e)         {             registerperformancecounter ();        }         /// <summary>         ///  Click Test         /// </summary>         /// <param name= "Sender" ></param>         /// <param name= "E" ></param>         private void button2_click (object sender, eventargs e)          {            buttonclickcount.increment ();             record_buttonclickcount++;//number of hits per second         }    }}

3, use Performance Monitor to view

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Simple creation of a performance counter