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DP: Dynamic Prepage in Postcopy Migration for Fixed-Size Data Load

  • Shuang Wu
  • Ce Yang
  • Jianhai Chen
  • Qinming He
  • Bei Wang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8707)

Abstract

Postcopy migration is a mature technology in virtualization. However the performance of postcopy is not stable. We find many memory intensive loads having a high proportion of independent fixed-size data (FSD) cases. To improve migration performance, we present DP: an algorithm which applies to intelligently tackle FSD load during postcopy migration. We implement DP as an online algorithm triggered by remote paging, and adjusting to prepage the most appropriate amount of pages related to recent page fault records. DP also has a threshold processing mechanism to prevent from noise which is derived from load size fluctuation. The experimental results show that DP algorithm can significantly reduce response time and implicit downtime in postcopy migration, with an high improvement on QoS.

Keywords

Virtual Machine Online Algorithm Source Side Live Migration Page Fault 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Hines, M.R., Deshpande, U., Gopalan, K.: Post-copy live migration of virtual machines. ACM SIGOPS Operating Systems Review 43(3), 14–26 (2009)CrossRefGoogle Scholar
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    Hirofuchi, T., Nakada, H., Itoh, S., et al.: Reactive consolidation of virtual machines enabled by postcopy live migration. In: Proceedings of the 5th International Workshop on Virtualization Technologies in Distributed Computing, pp. 11–18. ACM (2011)Google Scholar
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    McCalpin, J.D.: STREAM: Sustainable memory bandwidth in high performance computers. Silicon Graphics Inc. (1995)Google Scholar
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Copyright information

© IFIP International Federation for Information Processing 2014

Authors and Affiliations

  • Shuang Wu
    • 1
  • Ce Yang
    • 1
  • Jianhai Chen
    • 1
  • Qinming He
    • 1
  • Bei Wang
    • 1
  1. 1.College of Computer ScienceZhejiang UniversityHangzhouChina

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