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Published on: 10/01/2008
Type of content: Article
Format: Adobe Acrobat (.pdf)
Length: 9
Price: FREE

Overview
Virtualization is becoming a standard method for creating flexible, dynamic data centers that can rapidly respond to changing business needs while effectively managing costs. Citrix XenServer 5, Enterprise Edition, has been optimized to support Citrix XenApp 4.5, offering excellent XenApp performance in a virtualization environment. This optimization helps IT organizations implement more robust virtualization solutions that enable server consolidation and virtualized application delivery.

One key metric when evaluating the performance of a server virtualization solution is the number of concurrent user sessions a virtual machine can support before system responsiveness negatively affects user experience. This paper reports scalability test results for concurrent user sessions on Dell PowerEdge R805 servers running either Dual-Core or Quad-Core AMD Opteron processors.

Citrix XenApp 4.5 running on Citrix XenServer 5 was tested on a two-socket PowerEdge R805 server with 32 GB of RAM. In the first configuration, the server used two Dual-Core AMD Opteron 2222 3.0GHz processors; the second configuration used two Quad-Core AMD Opteron 2356 2.3GHz processors. The goal for this testing was to determine how many concurrent user sessions each server configuration could support before an appreciable slowdown in single user logon time was detected.

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