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A Performance Study of Virtual Machines on Multicore Architectures

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4 Author(s)
Jie Tao ; Steinbuch Center for Comput., Karlsruhe Inst. of Technol., Karlsruhe, Germany ; Furlinger, K. ; Lizhe Wang ; Marten, H.

Cloud computing has promoted the widespread use of virtualized machines. A question arises: How does virtualization influence the performance of running applications? The answer must be a common interest of application developers and users. This paper describes the results of our performance evaluation on a virtualized multicore machine. We tested a set of benchmark applications and detected some general features that should be considered when running applications on a virtualized multicore machine. We also studied the application execution behavior using profiling tools. We found the reason for unexpectedly poor performance of an OpenMP application in a virtualized setting and optimized the program. The optimization resulted in a significant performance gain.

Published in:

Parallel, Distributed and Network-Based Processing (PDP), 2012 20th Euromicro International Conference on

Date of Conference:

15-17 Feb. 2012