Energy-Efficient Role-Based Concurrency Control with Virtual Machines

In order to realize energy-aware distributed applications, it is required to not only serialize conflicting transactions but also reduce the electric energy consumption of servers. In this paper, the EERO-VM (Energy-Efficient Role Ordering in Virtual Machine environment) scheduler is newly proposed to not only reduce the electric energy consumption of a server cluster equipped with virtual machines but also serialize transactions by significancy of subjects which issue the transactions. Evaluation results show a transaction issued by a more significant subject can be preferentially performed than transactions issued by less significant subjects in the EERO-VM scheduler. In addition, we show the electric energy consumption of a server cluster equipped with virtual machines can be more reduced in the EERO-VM scheduler than the RO (Role Ordering) scheduler proposed in our previous studies.