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Performance tests conducted by Dell and VMware show the effects of a variety of pre-boot scenarios. Credit: Neung Stock Enterprise

Understanding performance is fundamental to the desktop virtualization solutions developed by Dell and VMware. It’s a value they strive to uphold by working collaboratively and testing relentlessly to establish best practices for their customers.

As part of a renewed focus on desktop virtualization announced earlier this year, the solution providers are publishing the results of their performance tests and other assessments to “solutionize” the process of desktop virtualization. Their goal? To create an end-to-end solution that is optimized, robust and trustworthy.

Time versus power consumption

A fitting example of this combined effort is their assessment of boot-on-demand scenarios and how they affect storage, CPU resource utilization, power optimization and end-user experience.

Boot-on-demand is a key component of desktop pool management — making sure virtual desktops are available to users when they need them, while optimizing power use when they’re not needed. Key to striking this balance is not adversely affecting user experience with unacceptable delays during the boot-up process.

Obviously, the fewer pre-booted virtual desktops around, the better the power optimization. But with fewer pre-booted virtual desktops, end-users are more likely to encounter delays if applications are not available when needed.

Understanding multiple scenarios

To configure a virtual desktop environment most efficiently, organizations first need to answer the following questions:

  • How much money can be saved in electricity costs?
  • How long will end-users wait for virtual machines to boot up?
  • How often will they encounter those delays?

Performance tests conducted by Dell and VMware show the effects of a variety of pre-boot scenarios, giving IT the information it needs to choose the best configuration. Having these options allow organizations to strike the right balance between creating a satisfying user experience and optimizing power consumption.

Storage IO parameters of interest for pre-boot scenarios

Pre-Boot Configuration

Maximum IOPS Per User

READ / Write %

Maximum Latency (ms)













Tests lead to better decisions

This kind of assessment is part of Dell and VMware’s system-wide approach to testing and performance qualification, and it clearly illustrates that Dell-VMware solutions for desktop virtualization are robustly designed to accommodate multiple pre-boot configurations.

The companies’ efforts to generate and share best practices are gaining momentum. Be sure to visit the Dell TechCenter Client Virtualization site often for the latest technical articles.

Fredric Paul
Fredric Paul is an award-winning writer, editor and content strategist who has held senior editorial positions at InformationWeek, CNET and PC World. He lives in San Francisco.
Fredric Paul
Tags: Technology,Virtualization