If you’re using Oracle applications in an x86 environment, you might want to think about deploying Oracle VM Server for your virtualization duties. There is tight integration and certifications requirements around the operation of Oracle products so it is easy to see why Oracle VM Server can handle Oracle workloads a lot faster than VMware. As a result, Oracle users will probably stick with Oracle VM Server for virtualization.
There is one issue however. In the broad, users are not a big fan of Oracle’s virtualization solutions – Oracle VM Server gets low relative satisfaction ratings compared to its peers. So, if you only have limited need for the use of Oracle software you should probably consider one of the alternative virtualization providers in the market.