title: PerformanceCounter CPU usage value allways 0
body: <p>For below Performance counter, I am always getting % Processor Time is 0, even my CPU shows 100% usage, what could be the reason?</p>
  
  <pre><code>PerformanceCounter pc = new PerformanceCounter("Processor", "% Processor Time", "_Total", true);
  Console.WriteLine(pc.NextValue());
  </code></pre>