Hyper-V Performance FAQ R2

Anthony F. Voellm (aka Tony) 12/17/2009 http://blogs.msdn.com/tvoellm This FAQ is titled R2 since it updates the original FAQ as of the Windows Server 2008 R2 Hyper-V.  Since Hyper-V originally released we have continued to improve it.  We have new features in R2 like Live Migration, support for 64 processors and lots of improvements in networking…

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Note the new title….

Thanks to many of you for finding value in this blog.  I hope you have enjoyed the content and you’ll see more Hyper-V in the near future.  For example I have a blog coming titled “Hyper-V Performance FAQ R2” coming soon. I’ve changed the name of the blog to “All topics fundamentl” to reflect some of the…

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What’s new in Windows Server 2008 R2 Hyper-V Performance and Scale?

When the first version of Hyper-V launched last year we worked really hard to make it a great performing product.  From what I’ve heard from all of you we did just that – delivered a great performing product.  Now in less than a year we have made great strides.  For example when we first shipped…

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Useful IO profiles for simulating various workloads

A buddy of mine [Liang Yang] recently shared the following table with me and I thought you might also find it useful with trying to simulate various workloads.  In particular when testing and evaluating Hyper-V. A tool like IOMeter [from www.iometer.org] can be programmed with the mixes of reads/wrtes and sequential/random IO’s detailed below. Workload Category…

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Monitoring Hyper-V Performance

Now that Hyper-V has been in the market for over 9 months a common question that has come my way is “what should I monitor?” This question has been asked for a couple of reasons such as; How do I know if my machine is overloaded? How can I figure out what resources were used…

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Why does my desktop box slowdown when I install Hyper-V?

Hyper-V’s primary target is servers.  We love it when you run it on your desktop however you might encounter some challenges.  One such challenge is that once Hyper-V is installed on your desktop box you might find the overall system performance has dropped. The most common problem users are experience is related to hi-end graphics…

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Why does my Avg Disk Write / Sec counter keep climbing?

There have been a number of issues with time in W2k3 guests, the first of which was covered in http://blogs.msdn.com/tvoellm/archive/2008/06/05/negative-ping-times-in-windows-vm-s-whats-up.aspx .  The first issue involved negative ping times. A recent issue has come up around performance counters reporting huge disk write times that did not correspond with how the Virtual Machines was actually behaving.  it…

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