This brief contribution introduces a method of quantifying the localit
y in a given reference sequence and visually representing it as a thre
e dimensional surface. We explore some of the properties of this formu
lation of locality and show the correlation between graphical features
and specific reference patterns. The utility of our formulation of lo
cality is demonstrated through two of its potential applications as a
visualizations tool: characterizing and summarizing workload locality,
and evaluating the effectiveness of benchmark programs in exercising
memory hierarchies.