title: Too big efficiency - parallel computing
body: <p><strong>This is only theoretical question</strong></p>
  
  <p>In parallel computing is it possible to acheive efficiency greater than 100%? </p>
  
  <p>E.g 125% efficiency</p>
  
  <pre><code>+-------------+------+
  | Processors  | Time |
  +-------------+------+
  |          1  | 10s  |
  |          2  | 4s   |
  +-------------+------+
  </code></pre>
  
  <p>I don't mean situtations when parallel environment is configured wrong or there is some bug in code.</p>
  
  <p>Efficiency definition:
  <a href="https://stackoverflow.com/a/13211093/2265932">https://stackoverflow.com/a/13211093/2265932</a></p>
  
  <p><img src="https://i.stack.imgur.com/SmdQE.png" alt="enter image description here"></p>