John Howard - Senior Program Manager in the Hyper-V team at Microsoft

Senior Program Manager, Hyper-V team, Windows Core Operating System Division.

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  • Blog Post: Everything you wanted to know about SR-IOV in Hyper-V Part 2

    In part 1 , I discussed why Microsoft has been investing in SR-IOV for device I/O from virtual machines. The key points were to reduce latency, increase throughput, lower compute overhead, and for future scalability. Part two takes a look at SR-IOV from a hardware perspective. For those who didn’t take...
  • Blog Post: Everything you wanted to know about SR-IOV in Hyper-V Part 3

    So far in this series, we’ve looked at the “why” question, and the hardware aspects of SR-IOV, and identified that to use SR-IOV in Hyper-V it is necessary to have system hardware support in the form of an IOMMU device, and a PCI Express device which has SR-IOV capabilities. Now it’s time to start taking...
  • Blog Post: Everything you wanted to know about SR-IOV in Hyper-V Part 8

    This part of the series is all about determining why SR-IOV may not be operational. As you will discover, there are several reasons, some of them obvious if you’ve followed all the parts so far, some more subtle. By the end of this part, you will be an expert! Assuming you have a switch in SR-IOV mode...