Analysis of virtual machine live-migration as a method for power-capping

Jinkyu Jeong, Sung Hun Kim, Hwanju Kim, Joonwon Lee, Euiseong Seo

    Research output: Contribution to journalArticlepeer-review


    To reduce the construction cost of the power-supplying infrastructure in data centers and to increase the utilization of the existing one, many researchers have introduced software-based or hardware-based power-capping schemes. In servers with consolidated virtual machines, which can be easily found in cloud systems, exporting virtual machines to other light-loaded servers through live-migration is one of the key approaches to impose power-capping on servers. Up until now, most researchers who have tried to achieve power-capping through live-migration assumed that exporting a virtual machine instantly reduces the server power consumption. However, our analysis introduced in this paper reveals that the power consumption remains high or increases for a few seconds during a migration instance. This behavior contradicts the aim of power-capping, and may endanger the stability of servers. Based on this observation, we also propose and evaluate two power-suppressing live-migration schemes to resolve the power overshooting issue. Our evaluation shows that both approaches immediately limit the power consumption after live-migration is initiated.

    Original languageEnglish
    Pages (from-to)1629-1655
    Number of pages27
    JournalJournal of Supercomputing
    Issue number3
    Publication statusPublished - 2013 Dec

    Bibliographical note

    Funding Information:
    Acknowledgements This research was supported by Next-Generation Information Computing Development Program (2012-0006423) and Basic Science Research Program (2012R1A1A2A10038823) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology.

    All Science Journal Classification (ASJC) codes

    • Software
    • Theoretical Computer Science
    • Information Systems
    • Hardware and Architecture


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