Assembly: System.Web (in system.web.dll)
The EffectivePrivateBytesLimit property returns the number of bytes that can be used by the application process. Once this limit is reached, the cache algorithm begins aggressively scavenging the cache.
The EffectivePrivateBytesLimit property can be set with the privateBytesLimit attribute of the cache Element for caching (ASP.NET Settings Schema) element in the application's configuration file. When the privateBytesLimit attribute is not set, the cache algorithm determines the maximum size of the cache, and the EffectivePrivateBytesLimit property contains the size chosen by the algorithm.