1. A computing system comprising: memory containing executable code; one or more processors, which, when executing the executable code, cause the computing system to perform a computer-implemented method of analyzing tracing data to identify functions for which tracing may be selectively enhanced or reduced, and wherein the computer-implemented method comprises: generating a visualization representing tracer data gathered by tracing an application with a tracer, said application comprising a plurality of functions; receiving a set of user interactions gathered during a user session with the visualization; identifying from said set of user interactions a first function as a low interest function; and said tracer thereafter tracing said first function at a reduced tracing level.