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For preemptive scheduling with shared cache, different tasks may cause interference in the shared cache, leading to Cache-Related Preemption Overhead (CRPD). Cache partitioning is a well-known technique for mitigating unpredictable cache interference in preemptive scheduling, but it reduces cache space available to each task, causing an increase in task execution time. Non-preemptive scheduling algorithms...
A semi-partitioned scheduler called EDF-tu is presented that is the first such scheduler to be optimal on uniform heterogeneous multiprocessors. EDF-tu utilizes an adjustable allocation parameter called a frame to schedule tasks that migrate. The frame size F must divide all task periods to ensure hard real-time optimality, but for any choice of F, maximum deadline tardiness is at most F. Thus, the...
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