An apparatus and method are provided to equalize a histogram using a cumulative distribution function of an image. The lead egress adapter is situated in the lead egress hole. The capability to aggregate profile data based on multiple code behavior attributes and filter based on instances thereof, allows code optimization decisions to be made based on presentation of profile data from various perspectives. Also, a shortest path tree determines the most efficient paths available for copying data from a source datastore to one or more destination datastores. In some embodiments, a global-routing graph can further be extracted from a detailed routing graph.