Effects on mapping the VCPUs to the physical CPUs in para-virtualization

Tae Muk Lyoo, Hee Seok Choi, Jihun Kang, Jong Beom Lim, Daeyong Jung, Sung Jin Song, Joon Min Gil, Kwang Sik Chung, Heonchang Yu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Virtualization is to provide virtually all types of technologies used on the physical PC. However, in a virtualization technique, services can be modified and adjusted to satisfy user requirements, the cost of hardware purchases and hardware constructions is not occurred. Beside, this virtualization supports multiple guest operating systems on a host OS. It is helpful for virtualization to build cost-effective IT infrastructure. In general, virtualization can be classified into two categories: full virtualization and para-virtualization. Full virtualization does not require a direct interaction with host resources, but in paravirtualization a direct interaction with frequently used resources can substantially improve performance of computation. In this paper, we study the effects on the performance when the VCPUs map to the physical CPUs in paravirtualization. And we study the effects of the mapped VCPU in an overcommit environment that the number of virtual cores is more than the number of physical cores. The purpose of these experiments is to find out the best CPU allocation method in various environments of para-virtualization.

Original languageEnglish
Title of host publicationComputer Science and Its Applications - Ubiquitous Information Technologies
EditorsHwa Young Jeong, Ivan Stojmenovic, James J. Park, Gangman Yi
PublisherSpringer Verlag
Number of pages5
ISBN (Electronic)9783662454015
Publication statusPublished - 2015
Event6th FTRA International Conference on Computer Science and its Applications, CSA 2014 - Guam, United States
Duration: 2014 Dec 172014 Dec 19

Publication series

NameLecture Notes in Electrical Engineering
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119


Other6th FTRA International Conference on Computer Science and its Applications, CSA 2014
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2015.


  • Mapped CPU
  • Overcommit scheduling
  • Scheduling overhead
  • Virtualization

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering


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