Ranvijay
Abstract
This paper presents multi budget bandwidth preserving server (MBBPS) to improve the quality of service in terms of better responsiveness of the aperiodic task by utilizing the concept of multi budget and multi priority of the server while ensure the feasibility of periodic task at the same time. Feasibility analysis is done at offline by assigning the priority of periodic tasks as well as server to service the aperiodic tasks by fixed priority rate monotonic first algorithm. Theorem has been formulated to ensure the feasibility of the periodic tasks with enhanced budget. Besides providing better responsiveness to the aperiodic tasks, this work also improves the quality of service (QoS) by accepting aperiodic tasks that were rejected by the existing deferrable server. The complexity of proposed MBBPS algorithm is same as deferrable server. The extensive examples and simulation results illustrate that our approach can effectively reduce the average response time of aperiodic tasks as well as reduce the rejection ratio while guaranteeing the periodic tasks at the same time.
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Index Terms
- Enhanced aperiodic responsiveness by multi budget bandwidth preserving server
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