Virtualization Technology News and Information
Article
RSS
HP Labs Publishes 'Performance Evaluation of Virtualization Technologies for Server Consolidation'

HP Labs has published a paper titled "Performance Evaluation of Virtualization Technologies for Server Consolidation".  This 14 page paper compares the Xen and OpenVZ technologies.  It writes:

Server consolidation has become an integral part of IT planning to reduce cost and improve efficiency in today’s enterprise data centers. The advent of virtualization allows consolidation of multiple applications into virtual containers hosted on a single or multiple physical servers. However, this poses new challenges, including choosing the right virtualization technology and consolidation configuration for a particular set of applications. In this paper, we evaluate two representative virtualization technologies, Xen and OpenVZ, in various configurations. We consolidate one or more multi-tiered systems onto one or two nodes and drive the system with an auction workload called RUBiS. We compare both technologies with a base system in terms of application performance, resource consumption, scalability, low-level system metrics like cache misses and virtualization-specific metrics like Domain-0 consumption in Xen. Our experiments indicate that the average response time can increase by over 400% in Xen and only a modest 100% in OpenVZ as the number of application instances grows from one to four. This large discrepancy is caused by the higher virtualization overhead in Xen, which is likely due to higher L2 cache misses and misses per instruction. A similar trend is observed in CPU consumptions of virtual containers. We present an overhead analysis with kernel-symbol-specific information generated by Oprofile.

You can download and read the paper, here.

Published Saturday, September 29, 2007 7:12 PM by David Marshall
Comments
GadgetGadget.info - Gadgets on the web » HP Labs Publishes 'Performance Evaluation of Virtualization … - (Author's Link) - September 29, 2007 9:51 PM
GadgetGadget.info - Gadgets on the web » HP Labs Publishes 'Performance Evaluation of Virtualization … - (Author's Link) - September 29, 2007 9:51 PM
To post a comment, you must be a registered user. Registration is free and easy! Sign up now!
top25
Calendar
<September 2007>
SuMoTuWeThFrSa
2627282930311
2345678
9101112131415
16171819202122
23242526272829
30123456