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Tuesday, October 07, 2008 1:30 AM

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
Posted by tvoellm | 2 Comments
Monday, September 29, 2008 4:36 AM

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
Posted by tvoellm | 3 Comments
Sunday, September 28, 2008 10:22 PM

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
Posted by tvoellm | 1 Comments
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Wednesday, September 24, 2008 1:59 PM

Hyper-V Storage Analysis

Hyper-V Perfies, In a previous blog entry I explained the different types of storage choices you have with Hyper-V. However we had nore released yet so no numbers could be published. You can find the original post below... http://blogs.msdn.com/tvoellm/archive/2007/10/13/what-windows-server-virtualization-aka-viridian-storage-is-best-for-you.aspx
Posted by tvoellm | 0 Comments
Wednesday, September 24, 2008 1:29 PM

WS08 Hyper-V now supports 24LP

Hyper-V Perfies, Now available to the general public is Windows Server 2008 (WS08) Hyper-V 24 Logical Processor (LP) Support. This revises our RTM support limit of 16 Logical Processors. We also increased the number of supported running virtual machines
Posted by tvoellm | 1 Comments
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Tuesday, July 22, 2008 8:18 PM

BizTalk team releases best practice doc for running on WS08 Hyper-V

Below is a great link on how to get BizTalk 2006 working on top of Hyper-V. It includes practical advice that applies to other servers and roles as well. Check it out... http://msdn.microsoft.com/en-us/library/cc768518.aspx Tony
Posted by tvoellm | 1 Comments
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Monday, July 14, 2008 5:44 PM

How to get Processor Utilization for Hyper-V via WMI

There are a number of groups building management software (OEMs, Microsoft, …) for Hyper-V which is cool to see. A common ask from these teams has been around reading and computing VM CPU usage. The following is an example of how to compute Hyper-V guest
Posted by tvoellm | 2 Comments
Saturday, June 28, 2008 4:57 PM

WS08 Hyper-V as RTMed!!!!

Wow its been a great ride helping get Hyper-V to perform the way it does. So much so I've not posted in a while. You will see some upcoming posts on performance counters, WMI perf interfaces, and real data (yes now with RTM I can post data). In the meantime
Posted by tvoellm | 1 Comments
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Wednesday, June 18, 2008 7:58 PM

Windows Server Performance 2008 Tuning guide now includes Hyper-V

The Windows Server Performance team has updated teh Window Server 2008 Tuning guide to include Hyper-V. The Hyper-V section provide a lot of recommendations you will find useful. Check it out below... http://blogs.technet.com/winserverperformance/archive/2008/06/17/power-and-hyper-v-are-now-part-of-the-windows-server-2008-tuning-guide.asp
Posted by tvoellm | 0 Comments
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Wednesday, June 11, 2008 10:46 AM

Why can't I start my VM when there is plenty of free memory?

Issue #1: A number of customers has reported than VM's fail to start when there is plently of memory. The error reported from the Hyper-V manager is displayed below. Here I tried to start a 4GB VM when there was 7+GB free. What's going on? The most common
Posted by tvoellm | 1 Comments
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Friday, June 06, 2008 4:26 AM

Hyper-V Performance FAQ

Hyper-V Performance FAQ Anthony F Voellm (aka Tony) 6/19/2008 http://blogs.msdn.com/tvoellm Q: What is the recommend configuration for performance testing? A: Here are some simple steps: 1. Be sure to have the latest WS08 Hyper-V build – Hyper-V RC1 which
Posted by tvoellm | 2 Comments
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Thursday, June 05, 2008 9:40 PM

Negative ping times in Windows VM's - whats up?

Just a quick blog post that might help you resolve an issue that some customers have seen running under Hyper-V VM's. The issue is negative ping times on multi-processor guests. If you see negative ping times in multiprocessor W2k3 guest OSes you might
Posted by tvoellm | 3 Comments
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Monday, May 12, 2008 5:31 AM

Hyper-V Performance Counters – Part four of many – “Hyper-V Hypervisor Virtual Processor” and “Hyper-V Hypervisor Root Virtual Processor” counter set

The “Hyper-V Hypervisor Virtual Processor” and “Hyper-V Hypervisor Root Virtual Processor” counter sets have the same counters. The only difference between the two is the ““Hyper-V Hypervisor Root Virtual Processor” contains counters for only the Root
Posted by tvoellm | 7 Comments
Friday, May 09, 2008 8:51 AM

Hyper-V Performance Counters – Part three of many – “Hyper-V Hypervisor Logical Processors” counter set

This is one of the most important counter set in all of Hyper-V. It is also one of the few counter sets that is not impacted by clock skew ( http://blogs.msdn.com/tvoellm/archive/2008/03/20/hyper-v-clocks-lie.aspx ) Before digging into the counter set
Posted by tvoellm | 2 Comments
Friday, May 09, 2008 7:58 AM

Hyper-V Performance Counters – Part two of many – “Hyper-V Hypervisor” counter set

The “Hyper-V Hypervisor” counter set is a good place to start when looking for overall system information and what is running under Hyper-V. Hyper-V Hypervisor counter set counters: · Logical Processors – These are the number of cores / HT that the hypervisor
Posted by tvoellm | 1 Comments
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