Fast live migration with small IO performance penalty by exploiting SAN in parallel

Soramichi Akiyama, Takahiro Hirofuchi, Ryousei Takano, Shinichi Honiden

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

4 Citations (Scopus)

Abstract

Virtualization techniques greatly benefit cloud computing. Live migration enables a datacenter to dynamically replace virtual machines (VMs) without disrupting services running on them. Efficient live migration is the key to improve the energy efficiency and resource utilization of a datacenter through dynamic placement of VMs. Recent studies have achieved efficient live migration by deleting the page cache of the guest OS to shrink the memory size of it before a migration. However, these studies do not solve the problem of IO performance penalty after a migration due to the loss of page cache. We propose an advanced memory transfer mechanism for live migration, which skips transferring the page cache to shorten total migration time while restoring it transparently from the guest OS via the SAN to prevent IO performance penalty. To start a migration, our mechanism collects the mapping information between page cache and disk blocks. During a migration, the source host skips transferring the page cache but transfers other memory content, while the destination host transfers the same data as the page cache from the disk blocks via the SAN. Experiments with web server and database workloads showed that our mechanism reduced total migration time with significantly small IO performance penalty.

Original languageEnglish
Title of host publicationProceedings - 2014 IEEE 7th International Conference on Cloud Computing, CLOUD 2014
EditorsCarl Kesselman
PublisherIEEE Computer Society
Pages40-47
Number of pages8
ISBN (Electronic)9781479950638
DOIs
Publication statusPublished - 2014 Dec 3
Externally publishedYes
Event7th IEEE International Conference on Cloud Computing, CLOUD 2014 - Anchorage, United States
Duration: 2014 Jun 272014 Jul 2

Publication series

NameIEEE International Conference on Cloud Computing, CLOUD
ISSN (Print)2159-6182
ISSN (Electronic)2159-6190

Other

Other7th IEEE International Conference on Cloud Computing, CLOUD 2014
CountryUnited States
CityAnchorage
Period14/6/2714/7/2

Keywords

  • cloud performance
  • live migration
  • virtualization

ASJC Scopus subject areas

  • Artificial Intelligence
  • Information Systems
  • Software

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  • Cite this

    Akiyama, S., Hirofuchi, T., Takano, R., & Honiden, S. (2014). Fast live migration with small IO performance penalty by exploiting SAN in parallel. In C. Kesselman (Ed.), Proceedings - 2014 IEEE 7th International Conference on Cloud Computing, CLOUD 2014 (pp. 40-47). [6973722] (IEEE International Conference on Cloud Computing, CLOUD). IEEE Computer Society. https://doi.org/10.1109/CLOUD.2014.16