Enabling Autonomic System Software with

Autonomic computing systems are designed to be self-diagnosing and self-modifying, such that they notice performance and correctness problems, pinpoint their causes, and react accord- ingly. These abilities can increase performance, uptime, and security, while simultaneously reducing the effort and knowledge required of system administrators. One way that systems can support these abilities is by allowing monitoring code, diagnostic code, and function im- plementations to be dynamically inserted and removed in live systems. This "hot swapping"