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Tick Scheduling: A Deadline Based Optimal Task Scheduling Approach for Real-Time Data Stream Systems

机译:刻度计划:基于截止日期的实时数据流系统的最优任务调度方法

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Most of the current research work on timely streaming data processing focuses on minimizing average tuple latency instead of strict individual tuple latency upper-bound, that is, deadline. In this paper, we propose a novel deadline-scheduling strategy, namely tick scheduling (TS), dealing with applications with specified deadline constraints over high volume, possibly bursting, and continuous data streams. We demonstrate that TS policy, which combines precise batch scheduling plan construction and adaptive batch maintenance mechanism can significantly improve system performance by greatly reducing system overheads and adapting gracefully to the time-varying data arrival-rate. Experimental results show the significant improvements provided by our proposed policy.
机译:大多数目前的研究工作就及时流数据处理侧重于最小化平均元组延迟而不是严格的单个元组延迟上限,即截止日期。在本文中,我们提出了一种新的截止日期调度策略,即刻度调度(TS),处理具有大容量,可能突发和连续数据流的指定截止日期约束的应用程序。我们证明了将精确的批量调度计划建设和自适应批量维护机制结合的TS策略可以通过大大减少系统开销并优雅地调整到时变数据到货率来显着提高系统性能。实验结果表明我们拟议的政策提供的重大改进。

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