1. A computer-based method for reporting data network monitoring information, comprising: accessing a set of performance metric values for a network component; generating a trace comprising graph data points based on the performance metric values; for a selected histogram range of the trace, building a histogram corresponding to the graph data points; and for a user interface, generating a performance monitoring display concurrently including a graph of the trace relative to an x-axis and a y-axis and a representation of the histogram.