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  • Hyper V performance Increases

    morning

    im trying to improve the speeds of my virtual machines.

    ive read everywhere that disabling TCP Offload on the guest vm's can be beneficial
    in the Microsoft Virual Machine bus Network Adaptor I have the following. anyone recommend any of these settings to be changed

    IPv4 Checksum offload (CURRENTLY DISABLED)
    Jumbo Packets (CURRENTLY DISABLED)
    Large Send Offloan Version 2 (ENABLED)
    Network Address (NOT PRESENT)
    TCP Checksum Offload IPV4 (RX & TX Enabled)
    UDP Checksum Offloan IPV4 (RX Enabled)

    thanks!

  • #2
    Re: Hyper V performance Increases

    You can disable the chimney offload at the OS level from the command prompt:
    Code:
    netsh int tcp set global chimney=disabled
    But this will only affect network performance and inn the VMs I usually don't change those settings, only on the hosts and only if it's 2008/R2. 2012 doesn't need this disabled.

    Have you installed the latest patches for your Hyper-V hosts?
    2008 R2 http://social.technet.microsoft.com/...date-list.aspx
    2012 http://social.technet.microsoft.com/...rver-2012.aspx

    Are you only experiencing network issues or are there other performance issues? If so, could you give us an overview of your Hyper-V environment? Version, hardware, VM settings, etc? I could point out some things you could do to make improvements if I see any.
    Regards,
    Jeremy

    Network Consultant/Engineer
    Baltimore - Washington area and beyond
    www.gma-cpa.com

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    • #3
      Re: Hyper V performance Increases

      Concur with Jeremy. The workload of the VM or VMs is also needed.

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