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Publications by Type: Journal and Magazine Articles
Citation key | WST-EPDUV-11 |
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Author | Whiteaker, Jon and Schneider, Fabian and Teixeira, Renata |
Pages | 38–44 |
Year | 2011 |
ISSN | 0146-4833 |
DOI | http://dx.doi.org/10.1145/1925861.1925867 |
Address | New York, NY, USA |
Journal | Computer Communications Review (CCR) |
Volume | 41 |
Number | 1 |
Month | January |
Publisher | ACM |
Abstract | This paper performs controlled experiments with two popular virtualization techniques, Linux-VServer and Xen, to examine the effects of virtualization on packet sending and receiving delays. Using a controlled setting allows us to independently investigate the influence on delay measurements when competing virtual machines (VMs) perform tasks that consume CPU, memory, I/O, hard disk, and network bandwidth. Our results indicate that heavy network usage from competing VMs can introduce delays as high as 100 ms to round-trip times. Furthermore, virtualization adds most of this delay when sending packets, whereas packet reception introduces little extra delay. Based on our findings, we discuss guidelines and propose a feedback mechanism to avoid measurement bias under virtualization. |
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