title: .net 4.5 iis HighDensityWebHosting
body: <p>In the change log for .net 4.5 there is a <a href="http://www.asp.net/aspnet/overview/aspnet-and-visual-studio-2012/whats-new#_Toc_perf" rel="noreferrer">mention</a> of this new setting</p>
  
  <pre><code>&lt;configuration&gt;
    &lt;!-- ... --&gt;
    &lt;runtime&gt;
      &lt;performanceScenario value="HighDensityWebHosting"  /&gt;
    &lt;!-- ... --&gt;  
  </code></pre>
  
  <p>But there really no good description about what actually is affected by this setting, and should we bother to change it after installing .net 4.5 on production. Can someone share any details about what exactly this setting changes?</p>