title: Do long string keys in a Dictionary cause performance problems?
body: <p>I thinking about using a <code>Dictionary&lt;string, object&gt;</code> for looking up values by a string key. Based on my knowledge the longer keys the longer it takes to do lookups in a dictionary. My keys can be pretty long, like <code>/page-1/page-2/page-3/page-4</code> ... and so on where each name can be pretty long by them self.</p>
  
  <p>What performance hit can I expect when using long string keys in a Dictionary? What mechanism causes these costs?</p>