Research on Online Task Scheduling Mechanism in Cloud Computing

ABSTRACT

Mainly the online scheduling focus on resources management and distribution, aim to satisfy the request of user, pay not enough attention to service provider. In order to increase providers’ revenue, this paper researches the online task scheduling mechanism and proposes an improved online task scheduling mechanism. Firstly, we present the accepting strategy of the first task based on the yield of the new task. Secondly, after considering the sunk cost and opportunity cost, we present the accepting strategy of the non first task. Then, we improve the accepting strategy, and use the balance factors to control the portion of sunk cost and opportunity cost in order to get the maximum revenue. Simulation results obtained from CloudSim shows that the proposed mechanisms effectively reduce cost of services for providers, increase the profit of providers, and promote the harmonious development of scheduling environment.

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