title: Why VisualVM Sampler does not provide full information about CPU load (method time execution)?
body: <p>The problem is: VisualVM sampler shows call tree by time. For some method sampler shows only "Self time" so I can't see what makes this method slow. <a href="http://ge.tt/8jQOwx9/v/0" rel="noreferrer">Here is an example</a>.<br>
  How can I increase the depth of profiling?</p>