Constructing a Resource-Centric Real-Time Kernel

This paper describes the design and implementation of a resource-centric real-time kernel, of which goal is to achieve explicit and precise resource management. The architecture of the resource-centric kernel is constructed for the provision of resource management kernel entities, which is called resource sets, with user applications. A resource set encapsulates a set of the resources which are solely allocated for a certain job. The kernel utilizes the resource set only to perform the assigned job. Those resources include CPU time, memory pages, disk and network bandwidth, and so on. The resources in a resource set are protected by the enforcement mechanisms of the kernel from the use of the other resource sets. The introduced kernel architecture makes it possible to reduce the cost of IPC since the resources used by the current thread does not have to be passed to the receiver thread along the IPC path. Instead, the current resource set always counts the usage of the resources.