Project Virtual Reality Check's VMware ESX white paper: UPDATED

A few months ago, Project "Virtual Reality Check" (VRC) released four whitepapers. These whitepapers cover Citrix XenServer 5.

A few months ago, Project "Virtual Reality Check" (VRC) released four whitepapers. These whitepapers cover Citrix XenServer 5.0, Microsoft Hyper-V 1.0, VMware ESX 3.5 and bare metal platforms running Windows Server 2003/2008 x86 and x64 Terminal Services and Windows XP as VDI workload.

The VMware ESX whitepaper has just been updated with AMD's Rapid Virtualization Indexing (RVI) results. The impact of AMD Nested Page Tables (RVI is AMD's implementation of NPT) is benchmarked and analyzed. The outcome of these tests do really have a interesting positive impact in the amount of users on virtualized x86 Terminal Server platform. You can read the impact in the VMware ESX v1.1 whitepaper which can be downloaded from

During various various webcasts and presentations such as VMworld Europe, Citrix Synergy, Virtualization Congress we explain that “Project: VRC isn't finished…. it is just started! “. This week we started phase #2 of Project VRC. The highest priority in this phase is executing benchmarks using Terminal Server workloads running VMware vSphere using brand-new HP DL380G6 (Intel Xeon 5500 Nehalem) hardware. Also Windows7 as VDI platform will be tested and analyzed. Our goal (no promises) is to present and publish the results before the 22th of July when we present at BriForum.


Welcome to “Project: Virtual Reality Check (VRC)”!
More and more people ask advice about the hardware virtualization solutions, particularly in a Terminal Server and Virtual Desktop Infrastructure context.
PQR and Login Consultants have decided to compare the various hardware virtualization platforms in relationship to the end-user performance experience using the freely available benchmarking methodology of Login Consultants, VSI. Jointly they will deliver the outcome of the investigations and benchmarks to a broader audience, as part of the joint venture “Project: Virtual Reality Check (VRC)”.
Running Terminal Server workloads on virtual hardware is generally not recommended, but recent developments give grounds to a re-evaluation of current
best practices. By bench¬marking these and the Virtual Desktop workloads on physical servers and various virtualization solutions, Project VRC will give
you valuable and most importantly unbiased experience and insights.


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Great stuff guys – really needed in this present climate and even has a good looking girl on the front cover.

Will digest the content but again think this is a worthwhile comparison.

Well done.



I cant wait to read the whitepapers generated from Phase #2. Phase#1 was very interesting, and a big contribution to the community.

Keep up the good work




Looking forward to the v2 round or all the latest versions of the hypervisors on Nehalem (vSphere 4, XenServer 5.5 and of course Hyper-v v2) Who knows what the results will be? Of course all contenders will have improved scores, but what will the differential be between them all? Will there be a run-away winner or will they all be a lot closer together>