title: Estimate Core capacity required based on load?
body: <p>I have quad core ubuntu system. say If I see the load average as 60  in last 15 mins during peak time. Load average goes to 150 as well.
   This loads happens generally only during  peak time. Basically I want to know if there is any standard formula to derive the number of cores ideally required to handle the given load ? </p>
  
  <p>Objective :-
   If consider the load as 60 then it means 60 task were in queue on an average at any point of time in last 15 mins ? Adding cpu can help me to server the
   request faster or save system from hang or crashing .</p>