Easwaran, Arvind

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  • Publication
    Towards Overhead-Free Interface Theory for Compositional Hierarchical Real-Time Systems
    (2018-05-02) Kim, Jin Hyun; Kim, Kygong Hoon; Easwaran, Arvind; Lee, Insup
    Much recent research has been conducted on compositional real-time scheduling framework as the framework becomes a useful fundamental theory for real-time OS-Hypervisor. Much recent research has been conducted on compositional real-time scheduling as the framework becomes a useful fundamental theory for real-time OS-Hypervisor. However, compositional frameworks suffer from abstraction overheads in composing components. In this paper, we classify the composition overheads into i) supply abstraction overhead associated with the supply from a resource provider, and ii) demand abstraction overhead associated with the component workload. Then, we provide sufficient conditions for each abstraction overhead to be eliminated. In addition, this paper provides a heuristic technique that transforms any component to satisfy the sufficient conditions so that the abstraction overheads are minimized. In our comparison, we showed our technique outperforms the prior overhead-reducing CF about 10% at average and other combination techniques about 8% in reducing the overhead.