With the increasing demand for high performance and low power consumption in embedded real-time systems, performance asymmetric multiprocessor architecture is beginning to be applied to embedded real-time systems, bec...
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ISBN:
(纸本)9798350381993;9798350382006
With the increasing demand for high performance and low power consumption in embedded real-time systems, performance asymmetric multiprocessor architecture is beginning to be applied to embedded real-time systems, because this heterogeneous architecture allows the system to allocate computational resources as needed to satisfy the demands of each application and dynamic workloads. Most of the previous studies on edzlschedulingalgorithms have focused on task prioritization, and they simply assign the highest priority tasks to the fastest processors. In this paper, we choose to assign the highest priority tasks on the slowest processor and propose ssf-edzl (slowest speed fit for earliest deadline first until zerolaxity) schedulingalgorithm. We compare ssf-edzl scheduling algorithm with other schedulingalgorithms and the experimental results show that ssf-edzl is a better schedulingalgorithm which has higher processor utilization and better scheduling performance.
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