I just noticed that a new whitepaper was released and as the scoopmeister Eric Sloof hasn’t blogged about it yet I figured, he’s probably sleeping, I would blog about it. I just read the paper and it is a very good read and interesting to know that a single VM can actually saturate the bandwidth of a 10Gbps NIC. Also note the VM to Native comparisons!
This paper demonstrates that vSphere 4.1 is capable of meeting the performance demands of today’s thoughput-intensive networking applications. The paper presents the results of experiments that used standard benchmarks to measure the networking performance of different operating systems in various configurations. These experiments examine the performance of VMs by looking at VMs that are communicating with external hosts and are communicating among each other, demonstrate how varying the number of vCPUs and vNICs per VM influences performance, and show how the scalability results of overcommitting the number of physical cores on a system by adding four 1-vCPU VMs for every core.