Quo vadis?

After a huge marketing campaign, what has been announced today by Paul?

Version 4, tagged cloud OS. Truth is 'internal cloud' it's simply a new name for "Farms" (Citrix calls it "resource pool"). Yet there is no connection to 'external clouds'. -- And those would have to wear a 'VDC-OS'-shirt as well to work with the local 'internal cloud'.

OK, on to performance: There's a claim like '30 percent increase'.
Well lets take a look at foot note #1: they are comparing quad-core intel and six-core intel. Guess who wins.

The next claim is already softer: 'an estimate increase of 30% for XenApp'. I suppose the same hardware comparison is used for this assessment.

Let's compare quad-core with quad core and compare Xeon E5405 vs. Xeon E5570 and use a hypervisor where you can actually publish benchmarks without a huge approval process: SQL DBhammer on XenServer 5: '53 percent increase'. Citrix didn't even bother to enable Nested Page Tables (NPT)

The return of performance comparisons: 'XenServer vs. VMware'

Tolly Group just released their benchmark findings in the endless performance discussion. This time test methology and findings were approved by VMW, so it's no longer XenServer vs BrandX.

The bottom line: XenServer 5 outperforms VMware ESX 3.5 Update 3 by 41%.






[https://dl.getdropbox.com/u/17477/TollyGroup_XenServer_vs_VMware_%20Apr2009.pdf]