Virtualization of x86 servers is ubiquitous for obvious reasons. Cost savings, efficiencies in provisioning virtual machines (VMs), recoverability, and the ability to move workloads are a few of them.

You can't always get a smooth browsing experience with fast internet. A couple of other factors also come into play. Among them is network latency. But the real question is, what is network latency?

While data-center managers have long used heat maps to help determine where to best position racks of servers and cooling units, this mode of visualization can also be handy for better understanding ...