Virtio-win : low network performance of Windows guest compared to Linux guests

Solution Verified - Updated -

Issue

  • We have problem with virtio network driver. On the Linux machines (CentOS 6.5) iperf test show 15 Gib/s, but on Windows machines (Windows Server 2012 R2 Datacenter, Windows Server 2008 R2 Datacenter with SP1) iperf show less 3 Gib/s. Version of virtio drivers is 1.7.2

Environment

  • virtio-win 1.7.2

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