public static PerformanceTracker Begin(string description)
        {
            PerformanceTracker tracker = new PerformanceTracker(description);

            return tracker;
        }
 internal PerformanceTrackerEntry(PerformanceTracker parentTracker, string description)
 {
     this.CreateDate = DateTime.Now;
     this.Description = description;
     this.ParentTracker = parentTracker;
 }