Achieving Bounded Matching Delay and Maximized Throughput in Information Dissemination Management

Abstract—The demand for high performance information dissemination is increasing in many applications, such as e-commerce and security alerting systems. These applications usually require that the desired information be matched between numerous sources and sinks based on established subscriptions in a timely manner while a maximized system throughput be achieved to find more matched results. Existing work primarily focuses on only one of the two requirements, either timeliness or throughput. This can lead to an unnecessarily underutilized system or poor guarantees on matching delays. In this paper, we propose an integrated solution that controls both the matching delay and CPU utilization in information dissemination systems to achieve bounded matching delay for high-priority information and maximized system throughput in an example information dissemination system. In addition, we design an admission control scheme to meet the timeliness requirements for selected lowpriority information. Our solution is based on optimal control theory for guaranteed control accuracy and system stability. Empirical results on a hardware testbed demonstrate that our controllers can meet the timeliness requirements while achieving maximized system throughput. Index Terms—real-time and embedded systems, Feedback control real-time scheduling, distributed systems, end-to-end task, quality of service, distributed model predictive control. I