Windows Server Performance Team Blog

Windows Server Operating System Performance information, tools and discussion

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  • Blog Post: Increase VMBus buffer sizes to increase network throughput to guest VMs

    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...
  • Blog Post: A glimpse into Windows Server 8

    Hi folks, it has been a while as we continue to be heads down on the performance for Windows Server 8 ! But recently some of the new features and enhancements for Windows Server 8 have been introduced in Bill Laing’s, Corporate Vice President of the Server and Cloud Division, blog on the Server...
  • Blog Post: Power and Hyper-V are now part of the Windows Server 2008 Tuning Guide!

    The guide has been updated with sections on Power and Hyper-V guidelines and best practices. Check out the updated Tuning Guide and tell us what you think by following the feedback link at the top of the Tuning Guide. We look forward to hearing from you! Ahmed Talat Performance Manager Windows Server...
  • Blog Post: Hyper-V and VHD Performance - Dynamic vs. Fixed

    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...
  • Blog Post: NUMA Node Balancing

    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....