Home // CLOUD COMPUTING 2011, The Second International Conference on Cloud Computing, GRIDs, and Virtualization // View article

On the Performance Isolation Across Virtual Network Adapters in Xen

Authors:
Blazej Adamczyk
Andrzej Chydzinski

Keywords: performance isolation; Xen; virtualization; network scheduler

Abstract:
Virtualization has recently become a very popular technique for utilizing hardware capabilities and lowering infrastructure and maintenance costs. However, making several virtual machines share the same resources can potentially introduce performance isolation problems. Depending on the application, proper quality of service and the performance isolation may present critical requirements for the system. \In this paper, we focus on network performance isolation among virtual adapters in Xen. We present several experiments demonstrating how activity of one virtual machine can affect the network performance of any other. Additionally, we examine the network I/O scheduler in Xen to see if it is fair, predictable and configurable enough. Finally, we propose an idea on how to modify Xen back-end drivers to improve the network performance isolation.

Pages: 222 to 227

Copyright: Copyright (c) IARIA, 2011

Publication date: September 25, 2011

Published in: conference

ISSN: 2308-4294

ISBN: 978-1-61208-153-3

Location: Rome, Italy

Dates: from September 25, 2011 to September 30, 2011