title: Using more than one CPU in PHP
body: <p>i run my app on a linux os server with two dual core processors. </p>
  
  <p>The thing is that on 'top' linux command, the second processor isn't loaded more than 10%, while the first one stays at 100% for 3-4 seconds on some scripts.</p>
  
  <p>How can i use the power of those two CPU's of my server?</p>