Performance Counter 使用

1. 定义计数器元数据数组，用来记录所有计数器的元数据（自定义计数器的类型，名字，提示字段）

CounterCreationDataCollection CCDC = new CounterCreationDataCollection();

2. 定义具体计数器元数据，并加入到元数据数组中

CounterCreationData subscriptionQueueCounter = new CounterCreationData();
            subscriptionQueueCounter.CounterType = PerformanceCounterType.NumberOfItems32;
            subscriptionQueueCounter.CounterName = subscriptionQueueSizeName;
            CCDC.Add(subscriptionQueueCounter);

3. 定义计数器

PerformanceCounter subscriptionQueueSize = new PerformanceCounter(categoryName, subscriptionQueueSizeName, string.Empty, false);

4. 初始化值

subscriptionQueueSize.RawValue = 0;