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IEEE International Performance Computing and Communications Conference (2011)
Orlando, FL, USA
Nov. 17, 2011 to Nov. 19, 2011
ISBN: 978-1-4673-0010-0
pp: 1-2
Dwight Makaroff , Dept. of Computer Science, University of Saskatchewan, Saskatoon, SK, CANADA S7N 3C9
Anthony Arkles , Dept. of Computer Science, University of Saskatchewan, Saskatoon, SK, CANADA S7N 3C9
Jagmohan Chauhan , Dept. of Computer Science, University of Saskatchewan, Saskatoon, SK, CANADA S7N 3C9
ABSTRACT
A modern twist to clock synchronization is the push towards server virtualization and cloud computing. Distributed applications now often run on geographically-distributed, virtualized servers that are isolated from the underlying hardware. Despite the fact that most applications run well in an abstracted environment without direct hardware access, tight real-time synchronized clocks are still necessary. We performed a set of experiments to quantify the additional clock error when running the NTP daemon inside a Virtual Machine. We found that the delay asymmetry is relatively small when running in a non-virtualized environment, but quite significant in a virtualized environment.
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CITATION
Dwight Makaroff, Anthony Arkles, Jagmohan Chauhan, "VM clock synchronization measurements", IEEE International Performance Computing and Communications Conference, vol. 00, no. , pp. 1-2, 2011, doi:10.1109/PCCC.2011.6108101
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