1. Program Visualization at the System Level University of Notre Dame Jian Mu and Dirk Van Bruggen

2. The Problem Simple programs can be complex strace offers a look into the system calls Output is difficult to decipher How does the program run? What files/resources are used?

3. The Solution Create a program to assist in visualizations Create a Data Pipeline Create Modules for each stage Strace Parser Data Processor Visualizer

4. Initial Results Where did all the time go?

5. Initial Results cont. Where is the I/O concentrated? Time and Count

6. Following Calls Through Time

7. How Much Overhead? Seconds

8. The Road Ahead GUI to Tie everything together Additional Modules Visualization Debugging In-Depth Performance Evaluation Effectiveness Study

9. Questions?