SHARB: Shared Resource Arbitration in Partitioned Multicore Systems via Library Interposition |
With the increasing computational capabilities of multicore hardware platforms for embedded systems, the extent of software-based functionalities also grows continuously. Concurrently, formerly distributed functionalities are now integrated into a common platform. This is supported by multicore architectures, which allow the parallel computation of independently developed software components. This constitutes new opportunities and challenges. One of the latter is to integrate software components with different temporal requirements on a common hardware platform. Shared system resources compound the temporal interference between different software components. In the following an approach is presented that supports the development and integration process through the use of static priorities to manage the access to shared resources from in-parallel executed components. The domain of In-Car Multimedia is utilized to illustrate challenges and the proposed solution. The applicability is demonstrated through the use of a prototypical implementation.
Knirsch A, Schnarz P, Wietzke J