Under load, the default buffer size used the by the virtual switch may provide inadequate buffer and result in packet loss. We recommend increasing the VM bus receive buffer from 1Mb to 2Mb. Traffic jams happen every day, all across the world. Too many vehicles competing for the same stretch of road...

For those of you running Hyper-V on NUMA (Non-Uniform Memory Architecture) based platforms (such as HP’s DL785), this blog presents a tuning suggestion for how to fine tune the placement of virtual machine (VM) on to a specific NUMA node. Every VM in Hyper-V has a default NUMA node preference....

My name is Tim Litton, I work as a Program Manager within the Microsoft Windows Server team, and my particular area of focus is performance optimization for Hyper-V. With the recent release of Hyper-V, customers are starting to ask us how to configure Hyper-V to get the best performance. It’s generally...

Thanks for visiting our blog! I’m a development lead in the Windows Server Performance team and I led the performance effort on Hyper-V for Windows Server 2008 over the past three and a half years. We’ve worked with the product team throughout the Hyper-V development cycle to deliver a competitive...