Abstract
Modern embedded hard real-time systems feature multiple tasks running on multiple processing cores. Schedulability analysis of such systems is usually performed on an abstract system level with each task being represented as a black box with fixed timing properties. If timing constraints are violated, then optimizing the system on a code-level to achieve schedulability is a tedious task. To tackle this issue, we propose an extension to the WCET-aware C Compiler framework WCC. We integrated an optimization framework based on Integer-Linear Programming into the WCC that is able to optimize a multi-core system with multiple tasks running on each core with regards to its schedulability. We evaluate the framework by providing two approaches on a schedulability aware static Scratchpad Memory (SPM) allocation: one based on Integer-Linear Programming (ILP) and one based on a genetic algorithm.
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