what is Scavenging in asp.net

Scavenging is the process of deleting items from the cache when memory is scarce. Items are removed when they have not been accessed in some time or when items are marked as low priority when they are added to the cache. ASP.NET uses the CacheItemPriority object to determine which items to scavenge first


http://msdn.microsoft.com/en-us/library/ms178597%28v=vs.100%29.aspx

Vulpes...? Are you there..