Moving on to a new blog…

To all my readers I want to thank you!  Over the last couple of years I’ve gotten lots of great feedback and comments on this blog.   It has been read over 386,000 times as of 2/13/2011.   I hope you’ll join me on my new blog where I hope to put out more real…

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Wow… Hyper-V does it again – RemoteFX and Dynamic Memory

Hard to believe it has been eight months since my last post.  I’ve been deep into Windows Sercurity and Reliabiltiy and was fortunate enough to have a chance to contribute to one of the two features I’m briefly blogging about today – RemoteFX. So what are RemoteFX and Dynamic Memory?  RemoteFX is the next step in…

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Windows Server 2008 R2 Virtual Hard Disk (VHD) Performance Paper

If you have been looking for VHD performance data the paper below should give you a lot of what you have been looking to find.  The paper compares VHD performance on Windows Server 2008 and Windows Server 2008 R2.  It uses the new Native VHD implementation for R2 and loopback VHD 2008.  There are some…

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Hyper-V iSCSI performance numbers

I’ve seen a number of threads and questions recently around iSCSI performance in virtual machines.  If you are looking for Hyper-V information I suggest you check out the following paper: iSCSI 10 Gigabit Ethernet Performance Tuning With Windows Server® 2008, Hyper-v and the NetApp FAS® 3070 http://download.microsoft.com/download/F/B/3/FB38CA2C-6694-4D25-8452-4A28668A87F2/MSFT-NetApp-10G.docx This paper has a really good overview of…

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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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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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SQL Server 2008 on Windows Server 2008 Hyper-V Performance Guidance

Wow this is great day.  The SQL team has worked really hard in creating a performance guidance document with solid suggestions and performance numbers when running on WS08 Hyper-V. They looked at OLAP and OLTP workloads.  Even if you are not running SQL it will give you and idea of how other database like workloads…

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Hyper-V Performance Counters – Part five of many – "Hyper-VM VM Vid Numa Node"

There are a couple of performance counter sets in Hyper-V that show memory usage.  These counters tend to show memory used by one component of the system and the “Hyper-V VM Vid Numa Node” counter set is no different.  This counter set is intended to show memory used by the Virtual Infrastructure Driver (Vid).  The…

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Looking for that last ounce of performance? Then try affinitizing your VM to a NUMA node

There are not many performance knobs in Hyper-V which is by design.  We really seek out of the box performance.  However if you are looking for that last bit of performance from your Virtual Machines (VM’s) and have already made a good selection for networking and storage you might consider setting the Non-Uniform Access (NUMA)…

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