private const string CategoryName = "Sample Category";
private const string CategoryHelp = "This is just a sample Category";
private const string TotalOperationName = "Total Operation Counter";
private const string TotalOperationHelp = "Count of Total Operation";

//检测系统中是否已经存在这个类别//如果需要修改这个类别里面的内容的话就需要删除重新添加这里删除是为了if (PerformanceCounterCategory.Exists(CategoryName))PerformanceCounterCategory.Delete(CategoryName);//创建你需要的计数器

CounterCreationDataCollection collection = new CounterCreationDataCollection();CounterCreationData totalOperation =new CounterCreationData(TotalOperationName, TotalOperationHelp, PerformanceCounterType.NumberOfItems32);collection.Add(totalOperation);//调用Create 方法在你本地电脑注册这个计数器类别以及其中的一些计数器

PerformanceCounterCategory.Create(CategoryName,CategoryHelp,PerformanceCounterCategoryType.SingleInstance,collection);

PerformanceCounter m_totalOperationCounter = new PerformanceCounter(CategoryName, PerformanceCounterTotalOperationName, false);

for (int i = 0; i < 100; i++){//这是我自己封装的一个方法
PerfCounterSample.Instance.IncreaseOpCounter();//模拟处理
Thread.Sleep(new Random().Next(2000));}
public void IncreaseOpCounter(){m_totalOperationCounter.Increment();}

for (int i = 0; i < 100; i++)
{count++;//模拟处理Thread.Sleep(new Random().Next(2000));
}

Timer m_Timer = new Timer();
m_Timer.AutoReset = true;
m_Timer.Interval = 1000.0;//1 Second
m_Timer.Elapsed += new ElapsedEventHandler(Timer_Elapsed);
m_Timer.Start();

void Timer_Elapsed(object sender, ElapsedEventArgs e){lock (m_totalOperationCounter){m_totalOperationCounter.RawValue = count;}
}