The Role of IPC in the Component-Based Operating System JX

In currently used operating systems hardware support is used to ensure the memory protection. The communication between protection domains is obviously slower than simple method invocations. Robust component-based services need a flexible system design and fast communication mechanism between different units of protection. We describe the Java operating system JX that uses the type safety of the Java bytecode to enforce the protection between different domains. Furthermore we present a component based file system implementation to demonstrate the flexibility of the system. We also compare different configurations to show the impact of IPCs on fine-granular structured systems.