Computer Science ›› 2014, Vol. 41 ›› Issue (8): 38-41.doi: 10.11896/j.issn.1002-137X.2014.08.007

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Power-efficient Formal Scheduling Policy of VMs in Virtualized Clusters

ZHANG Lu-fei and CHEN Zuo-ning   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Aiming at the power problem of virtualized cluster,based on the defining of cluster,physical machine,opera-ting point,energy,jobs,virtual machine,the formal scheduling policy of Virtual Machines (VMs) was proposed to research the deployment scheme.And the common algorithm was extended and modified with Dynamic voltage and frequency scaling (DVFS) technology for energy-awareness.Using the FFD (First-Fit Decreasing) algorithm,the virtual machines were arranged in frequency sequence,then deployed on a physical machine with lowest voltage.Using perfor-mance apperceive policy,the voltage physical machines were set just enough for the total requirement of virtual machines to reduce “luxury” energy respectively.And using the voltage update rules after no virtual machines deployed,the misdirection of the inaccurate heuristic information was avoided.The modified algorithm was researched with experiments in an ideal model.Finally the performance and energy of the modified algorithm were compared with the old.The experimental results show that the modified algorithm meets the need of the jobs,and saves a great deal of energy.

Key words: Virtualization,DVFS,Power,Scheduling

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