You can monitor the turnover in the cache due to items expiring by using the Cache Total Turnover Rate performance counter associated with the ASP.NET Applications performance object.

• 使用与“ASP.；NET Applications”性能对象关联的“Cache Total Turnover Rate”(缓存总流通率)性能计数器；您可以监视缓存中由于项到期而导致的周转。