title: Paging and TLB operating systems
body: <p>I'm really stuck on this question for my OS class, I don't want someone to just give me the answer though, instead if someone could tell me how to work it out.</p>
  
  <p>Example Question:</p>
  
  <blockquote>
    <p>This system uses simple paging and TLB</p>
    
    <ul>
    <li><p>Each memory access requires 80ns</p></li>
    <li><p>TLB access requires 10ns</p></li>
    <li><p>TLB hit rate is 80%. </p></li>
    </ul>
    
    <p>Work out the actual speedup because of the TLB?</p>
  </blockquote>
  
  <p>NOTE: I changed the memory accessed required and the TLB access requires part of the question because as I said I don't want the answer, just a way to work it out.</p>