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Hierarchical scheduling frameworks (HSFs) provide means for composing complex real-time systems from well-defined independently developed and analyzed subsystems. To support shared logical resources requiring mutual exclusive access in two-level HSFs, overrun without payback has been proposed as a mechanism to prevent budget depletion during resource access arbitrated by the stack resource policy...
Fixed-priority preemption-threshold scheduling (FPTS) has been proposed as a generalization of fixed-priority preemptive scheduling (FPPS) and fixed-priority non-preemptive scheduling (FPNS) with the aim to improve schedulability and reduce run-time overheads. In this paper, we show that the existing worst-case response time (WCRT) analysis for FPTS is pessimistic and present an exact WCRT analysis...
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