The VRC Team (Ruben Spruijt, Sven Huisman and Jeroen van der Kamp) have just released their new VRC Phase IV whitepaper which is about the impact of application virtualization on VDI. A very interesting read, especially when you’re interested in the performance differences between the several application virtualization solutions.
Here a statement from the article:
Depending on the use case scenario, Project VRC discovered that this impact can be significant. Test results show that Application Virtualization has impact on the VDI user density, which can be decreased by 20% to 45% when Office 2007 is completely virtualized. This should be considered as a worst case scenario. When only a couple of specific (business) applications is virtualized, the session density decreases by only 3 to 12%. In practice the Application Virtualization overhead will be highly dependent on how often virtualized applications are started, and how much file IO and registry access they generate: specifically the creation of the virtualization ‘bubble’/environment for the application can have a significant overhead.