1. A machine implemented system that creates a frame accurate call tree subset for a thread, comprising: a component that receives from an interface an ordered stream of events, the component determines a number of shared frames between call stacks associated with a first event and a second event by utilizing a break point set at a call site location, the component constructs the frame accurate call tree subset for the thread based at least in part on the break points set at the call site locations and information gleaned from an inspection of a call stack associated with the first event and a call stack associated with the second event.