Discussions about Software at UMCP

September 28, 2005
Ben Zorn, Microsoft Research. Execution Environments for Building Dependable Systems

Managed Runtime Environments (MREs) (aka virtual execution environments or simply runtime systems) have evolved in functionality and complexity for over 40 years. MREs, such as the JVM and CLI, have absorbed functionality once only available from the operating system, and at the same time MREs support diverse and highly dynamic application configurations. While current MREs are clearly effective for many applications, opportunities remain to improve their design and broaden their applicability. In my talk, I focus on current issues with runtime systems and consider where hardware and software trends are likely to take these systems in the future. I consider MREs from the perspectives of performance, reliability, and ease of use, drawing on published experiences from both the CLI and Java communities. These experiences suggest important design directions for future MREs, including ways to improve support for modularity, error handling, concurrency, and componentization. One of the important future challenges for MREs is to demonstrate that they are up to the task of implementing the lowest-level system software, a domain where they are needed. The Bartok and Singularity projects, at Microsoft Research, are investigating this challenging problem.

Speaker Bio: Ben Zorn is a Senior Researcher leading the Software Design and Implementation Group in Microsoft Research. After receiving a PhD in Computer Science from UC Berkeley in 1989, he served eight years on the Computer Science faculty at the University of Colorado in Boulder, receiving tenure and being promoted to Associate Professor in 1996. He left the University of Colorado in 1998 to become a Senior Researcher at Microsoft Research, where he currently works. Dr. Zorn's research interests include programming language design and implementation and performance measurement and analysis. He also serves as an Associate Editor of the ACM journal Transactions on Programming Languages and Systems and the ACM journal Transactions on Architecture and Code Optimization.

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