The Virtualization Wars?
That's right... not the Clone Wars (c'mon i'm a computer guy, ofcourse I love Star Wars) but the Virtualization Wars.
Citrix CTO Simon Crosby challenges VMware CTO Stephen Herrod for a stand-off.
It all started with a blogpost of the VMware performance team: http://blogs.vmware.com/performance/2009/01/virtualizing-xenapp-on-xenserver-50-and-esx-35-1.html
In this publication the VMware performance team claimed that ESX outperformed XenServer when running a virtualized XenApp server. That's quite the opposite of what most of us in the field are noticing... and more importantly, it's quite the opposite of the publication of Project Virtual Reality Check, an independent research and a joint venture of Login Consultants and PQR. During Project VRC the virtual workloads were generated using the Login VSI methodology, which Mark and I created together with Jeroen van de Kamp and dr. Bernhard Tritsch. VSI uses AutoIT scripts to simulate load in a user session.... hmm exactly the same that VMware did... only their testing methodology is poorly explained and not detailed at all. Quite the opposite with the VRC whitepapers, which contain a detailed description of the used methodology! 1-0 for VRC.
Allright, that's of course only my unbiased view on this situation, seeing as I was one of the team members of project VRC and one of the authors of the Login VSI tool.
Citrix CTO Simon Crosby responded with the following on the VMware publication:
As a former academic, I'd give this mumbo jumbo an F grade. Bad science, bad scientists, uneven playing field
Read and delight yourself with the furious reaction of Simon Crosby: http://community.citrix.com/blogs/citrite/simoncr/2009/02/02/VMware+Wins!+(Bad+Science+Required)