Noticed this on the Citrix blog today. A nice little performance comparison between ESXi 5.5 and XenServer 6.5. Citrix claims to show a 11-16% performance advantage over VMware. I’m holding off on upgrading to 6.5 till summer, but can’t wait to run some of my own benchmarks against XenServer 6.2.
I am interested in this as well as I have recently upgraded to 6.5 from 6.2 and had some disk IO performance issues that I am trying to fix.
6.5 SP1 was released recently so maybe that will help.