1. A computer-implemented user interface comprising: a first region operable to display a plurality of groups of graphical operations, wherein each group of said plurality of groups of graphical operations is associated with a respective state grouping of a plurality of state groupings, and wherein said first region allows a selection of a group of graphical operations from said plurality of groups of graphical operations; and a second region operable to display performance data associated with said group of said plurality of graphical operations responsive to said selection, wherein said performance data is organized into a plurality of groups of performance data, and wherein each group of said plurality of groups of performance data is associated with a respective unit of a plurality of units of a graphics processing pipeline, and wherein said performance data indicates a degree to which a unit of said graphics processing pipeline impedes a flow of data through said graphics processing pipeline responsive to an execution of said group of said plurality of graphical operations.