著者

宮島 絵里 山口 実靖

出版者

工学院大学

雑誌

工学院大学研究報告 (ISSN:03685098)

巻号頁・発行日

no.116, pp.63-69, 2014-04-30

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In virtualized environment, several virtual machines run on a physical machine. In this case, a HDD header executeslong distance seeks among huge virtual machine image files. Consequently, I /O performance is tremendously decreasedby these long distance seeks. In this paper, we propose a method for increasing I /O performance by placinghotspot blocks. We implemented the proposed method by modifying Linux filesystem and evaluated its performance.Our evaluation has demonstrated that the proposed method has been successful in improving I /O performance in virtualizedenvironment.