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首页> 外文期刊>Parallel and Distributed Systems, IEEE Transactions on >Design and Implementation of Holistic Scheduling and Efficient Storage for FlexRay
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Design and Implementation of Holistic Scheduling and Efficient Storage for FlexRay

机译：FlexRay整体调度和高效存储的设计与实现

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摘要

FlexRay is a new industry standard for next-generation communication in automotives. Though there are a few recent researches on performance analysis of FlexRay, two important aspects of the FlexRay design have been overlooked. The first is a holistic integrated scheduling scheme that can handle both static and dynamic segments in a FlexRay network. The second is cost-effective and scalable performance. To address these aspects, we propose a novel holistic scheduling scheme, called HOSA, which can provide scalable performance by using flexible and ease-of-use dual channel communication in FlexRay. HOSA is built upon a novel slot pilfering technique to schedule and optimize the available slots in both static and dynamic segments. Moreover, to achieve efficient implementation, we propose approximate computation, which can efficiently support cost-effective and holistic scheduling by judiciously obtaining the tradeoff between computation complexity and available pilfered slots. HOSA hence offers the salient feature of improving bandwidth utilization. Moreover, to deliver high performance and bridge the gap between real-time communications in networks and storage management in end devices, we implement a deduplication-aware scheme in a real SSD prototype that can reduce space overhead and extend SSD lifespan (by significantly reducing duplicate write operations). The deduplication scheme meets the needs of message updates in FlexRay. Extensive experiments based on synthetic test cases and real-world case studies demonstrate the efficiency and efficacy of HOSA.
机译：FlexRay是汽车下一代通信的新行业标准。尽管最近有一些关于FlexRay性能分析的研究，但是FlexRay设计的两个重要方面被忽略了。第一种是整体集成调度方案，可以处理FlexRay网络中的静态和动态段。第二个是具有成本效益和可扩展的性能。为了解决这些问题，我们提出了一种新颖的整体调度方案，称为HOSA，该方案可以通过在FlexRay中使用灵活且易于使用的双通道通信来提供可伸缩的性能。 HOSA建立在一种新颖的时隙窃取技术之上，可以调度和优化静态和动态段中的可用时隙。此外，为了实现有效的实现，我们提出了近似计算，它可以通过明智地获得计算复杂度和可用盗用时隙之间的折衷，从而有效地支持具有成本效益的整体调度。因此，HOSA具有提高带宽利用率的显着特征。此外，为了提供高性能并弥合网络中的实时通信与终端设备中的存储管理之间的差距，我们在真实的SSD原型中实施了重复数据消除方案，可以减少空间开销并延长SSD的使用寿命（通过显着减少重复数据写操作）。重复数据删除方案可以满足FlexRay中消息更新的需求。基于综合测试案例和实际案例研究的大量实验证明了HOSA的有效性和有效性。

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