title: What caching algorithm does ASP.Net use?
body: <p>I'm writing a wrapper around ASP.Net's cache and I'm curious as to what caching algorithm they use. For instance, assuming everything in the cache has the same expiration date and priority, how does it clear out items? </p>
  
  <p><a href="http://en.wikipedia.org/wiki/Cache_algorithms" rel="nofollow">Wikipedia</a> lists 11 different caching algorithms. Does ASP.Net use one of them? </p>