title: Do the amount of namespaces affect performance?
body: <p>In Visual Studio there is a command to remove unused using statements </p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Configuration;
  using System.Data;
  using System.Drawing;
  using System.IO;
  using System.Linq;
  using System.Web;
  using System.Web.UI;
  using System.Web.UI.WebControls;
  </code></pre>
  
  <p>Is there a performance hit for having unused usings?</p>