Visualizing I/O Predictability and Behaviour

We utilize a novel measure to visualize file system predictability, drawn directly from a file access trace. For file access data, we have developed a visualization tool that produces 3D graphical views of the variation in predictability of successive access events across the file space. Our visualization tool provides interactive observation of the variations in predictability according to arbitrary criteria. Visualization results show that there is strong predictability among files and optimizations would be profitable.