Automatic capture of detailed analysis information for web application outliers with very low overhead

A non-transitory computer-readable storage medium having embodied thereon a program, the program being executable by a processor to perform a method for monitoring a transaction, the method comprising

• recording performance data for each of a plurality of methods of a network application, the performance data stored by an agent in a header of an execution thread that executes the method, the agent stored on a machine that executes the plurality of methods;
• ignoring the performance data for one or more of the plurality of methods that satisfy a threshold;
• generating a call graph from the performance data, the call graph indicating the root method of the business transaction and each method called as part of completion of the business transaction;
• and
• storing the performance data for one or more of the plurality of methods having a root node that does not satisfy a condition.