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Topological analysis and visualization of cyclical behavior in memory reference traces

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4 Author(s)
Choudhury, A.N.M.I. ; Sci. Comput. & Imaging Inst., Univ. of Utah, Salt Lake City, UT, USA ; Bei Wang ; Rosen, P. ; Pascucci, V.

We demonstrate the application of topological analysis techniques to the rather unexpected domain of software visualization. We collect a memory reference trace from a running program, recasting the linear flow of trace records as a high-dimensional point cloud in a metric space. We use topological persistence to automatically detect significant circular structures in the point cloud, which represent recurrent or cyclical runtime program behaviors. We visualize such recurrences using radial plots to display their time evolution, offering multi-scale visual insights, and detecting potential candidates for memory performance optimization. We then present several case studies to demonstrate some key insights obtained using our techniques.

Published in:

Visualization Symposium (PacificVis), 2012 IEEE Pacific

Date of Conference:

Feb. 28 2012-March 2 2012