An Online Load Balancing Algorithm for a Hierarchical Ring Topology
Keywords:ring, hierarchical, distributed, balancing, algorithm, fairness
Ring networks are an important topic to study because they have certainÂ advantages over their direct network counterparts: easier to manage, better bandwidth,Â cheaper and wider communication paths. This paper proposes a new onlineÂ load balancing algorithm for distributed real-time systems having a hierarchical ringÂ as topology. The novelty of the algorithm lies in the goal it tries to achieve and theÂ method used for load balancing. The main goal of the algorithm is to correctly utilizeÂ the computing resources in order to satisfy the average response time of clients. TheÂ secondary goal is to ensure fairness between the numbers of requests solved per clientÂ with respect to the average response time. A request from a client is moving throughÂ the network until a node considers that it can solve the request in the promised averageÂ time for that client or until it seems like the best opportunity to avoid anyÂ additional delays in solving it. A performance analysis and motivation for the proposed
algorithm is given with respect to the goals it tries to achieve. The results showÂ that the proposed algorithm satisfies its goals.
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