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

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.