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ThinkMind // CLOUD COMPUTING 2012, The Third International Conference on Cloud Computing, GRIDs, and Virtualization // View article cloud_computing_2012_3_30_20271


Performance Influence of Live Migration on Multi-Tier Workloads in Virtualization Environments

Authors:
Xiaohong Jiang
Fengxi Yan
Kejiang Ye

Keywords: virtualization, live migration, XEN, Muti-tier workload

Abstract:
Live migration is a widely used technology for load balancing, fault tolerance, and power saving in cloud data centers. Previous research includes significant research work in the performance improvement of live migration. However, little work has been done to investigate the influence of live migration on virtual machine workloads that users care about most. We notice that these workloads can be classified into two categories: single-tier workloads and multi-tier workloads which is a typical type for internet applications. We conduct a series of deliberate experiments to investigate the influence of live migration on multi-tier workloads in a cloud environment and also on traditional physical machines for comparison. Our experimental results show that multi-tier workloads on virtual machines can work as well as those on traditional physical machines. However, in an unstable environment, if virtual machines migrate constantly, live migration will cause a profound performance decrease on multi-tier workloads. Also, it is best to avoid migrating virtual machines that are hosting memory intensive workloads in a virtualization environment due to bad downtime performance. Further, we perform experiments trying to find the turning point of the performance of a virtual machine, which might provide support evidence for future research on live migration policy.

Pages: 72 to 81

Copyright: Copyright (c) IARIA, 2012

Publication date: July 22, 2012

Published in: conference

ISSN: 2308-4294

ISBN: 978-1-61208-216-5

Location: Nice, France

Dates: from July 22, 2012 to July 27, 2012

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