XenSource's benchmark more accurate than VMware's?

Chris Wolf published some Virtual Iron's benchmark results and commented that many of the people believe XenSource's benchmark to be more accurate. How did they come to the conclusion, I don't know.

So overall the Windows Server 2003 VM was able to perform at or below a 3% performance degradation. The Virtual Iron tests followed the same benchmark pattern used by VMware. If you would like to see the VMware results and also get more detail on what each individual benchmark is testing, take a look at VMware’s document “A Performance Comparison of Hypervisors.” Keep in mind that the Xen performance numbers in the VMware paper are under significant debate, with most of us (myself included) seeing Simon Crosby’s Xen benchmark numbers as being more accurate.

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Chris Wolf published some Virtual Iron's benchmark results and commented that many of the people believe XenSource's benchmark to be more accurate. How did they come to the conclusion, I don't know.

So overall the Windows Server 2003 VM was able to perform at or below a 3% performance degradation. The Virtual Iron tests followed the same benchmark pattern used by VMware. If you would like to see the VMware results and also get more detail on what each individual benchmark is testing, take a look at VMware’s document “A Performance Comparison of Hypervisors.” Keep in mind that the Xen performance numbers in the VMware paper are under significant debate, with most of us (myself included) seeing Simon Crosby’s Xen benchmark numbers as being more accurate.

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