Interactive Poster: Exploring Block Access Patterns of Native XML Storage
Halldór Janetzko, Daniel A. Keim, Marc Kramis, Florian Mansmann, Marcel Waldvogel · KOPS (University of Konstanz) · 2006
Recent block-based native XML storage systems such as IDEFIX touch blocks according to the XQuery engine s execution plan. The resulting access patterns are virtually unknown and potentially cause many expensive disk seeks. Visualization comes to the rescue when extensive log files must be analyzed a tedious and difficult task. The dynamic time-based block-touch animation as well as the static block-type information of VISUAL IDEFIX foster the insight into the performance-critical internals of the XML storage and help to optimize both the block layout and the XQuery engine to speed up queries.