中文摘要：

Yun-Gang Bao received his B.S. degree in computer science and technol- ogy from Nanjing University, Nanjing, in 2003, and Ph.D. degree in computer science from Chinese Academy of Sciences （CAS）, Beijing, in 2008. He is a professor in Institute of Computing Technology, CAS, Beijing. From 2010 to 2012, he was a postdoctoral researcher in Depart- ment of Computer Science, Princeton University, New Jersey. His current research interests include computer architecture, operating system, system performance modeling and evaluation. He is a member of CCF, ACM, IEEE. Sa Wang received his B.S. degree in computer science and technology from University of Science and Technology of China, Hefei, in 2009, and Ph.D. degree in computer science from Chinese Academy of Sciences （CAS）, Beijing, in 2016. He is an assistant professor in Institute of Computing Technology, His current research interests include operating system, system performance evaluation and optimization, and distributed system. He is a member of CCF.