VMware’s activity on competition is intensifying in this period of the year: after last month’s comments on Citrix HDX performance and Essentials for Hyper-V sales volume, as well as the cost of managing Hyper-V, they focuses on Microsoft hypervisor’s stability.
Eric Gray, Senior Engineer on the VMware Competitive Team, writes on the topic on its personal blog vCritical, suggesting that ESX has a critical advantage over Hyper-V (and Xen and KVM) because Microsoft relies on 3rd party general-purpose drivers while VMware offers hardened, stress-tested drivers — ready for your toughest enterprise workloads.
Gray mentions a presentation performed by the Microsoft Technical Fellow Mark Russinovich, who confirmed that Windows crashes largely depend (70%) by 3rd party driver code (while Microsoft code is responsible only 5% of times).






