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Monthly Archives: August 2010
How Old Are Your Database Statistics?
Unlike fine wine, database statistics do not improve with age. I recently helped out with a client who was having issues with poor query performance on a SQL Server 2005 instance on very good hardware. After having them run my … Continue reading
Posted in SQL Server 2005
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Hardware Performance Research
I am trying to gather some information about some of the newer Intel and AMD processors as part of my research for some upcoming presentations. I am looking at the possible correlation between TPC-E scores and Geekbench scores. Matching TPC-E … Continue reading
Posted in Computer Hardware
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SQL Server 2008 R2 Diagnostic Queries from SQL Saturday #51 Nashville
Here are the diagnostic queries that I ran during my presentation at SQL Saturday #51 in Nashville on August 21, 2010. — SQL Server 2008 and R2 Diagnostic Information Queries — Glenn Berry — August 2010 — http://glennberrysqlperformance.spaces.live.com/ — Twitter: … Continue reading
Posted in SQL Server 2008 R2
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DMV Emergency Queries From SQL Saturday #51 in Nashville
I wanted to post the first T-SQL script from my DMV Emergency Room presentation on August 21 in Nashville. This is designed to help you gather initial triage information about what is happening on your database instance, and then start … Continue reading
Posted in SQL Server 2008 R2
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Estimating Data Compression Savings in SQL Server 2008 and 2008 R2
Since I finished upgrading the last of my Production environment to SQL Server 2008 R2 running on Windows Server 2008 R2 a couple of weeks ago, I have been spending some time re-evaluating which indexes can take advantage of data … Continue reading
Posted in SQL Server 2008 R2
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Fall Speaking Schedule
I just got back from speaking at SQL Saturday #51 in Nashville, which was a lot of fun. I’ll write some more about SQL Saturday #51 later today. In the meantime, I wanted to compile a list of the different … Continue reading
Posted in Teaching
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SQL Server 2005 SP3 Cumulative Update 11 (CU11) Available
Microsoft has released Cumulative Update 11 for SQL Server 2005 SP3, which is Build 9.0.4309. There are only four fixes in this cumulative update, which could mean that SQL Server 2005 SP3 is a very mature, stable product, or it … Continue reading
Posted in SQL Server 2008 R2
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Proper Usage of MAXDOP Setting When Compressing Indexes in SQL Server 2008/2008 R2
I am a pretty big fan of SQL Server Data Compression, especially the enhanced version found in SQL Server 2008 R2 that includes Unicode compression. If you have tables or indexes that are good candidates for data compression (because they … Continue reading
Posted in SQL Server 2008 R2
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SQL Server 2008 and R2 Diagnostic Information Queries
It has been a couple of months since I have posted an update to my “SQL Server 2008 and R2 Diagnostic Information Queries”, which are a series of mostly DMV queries that are used to gather information about the configuration, … Continue reading
Posted in SQL Server 2008 R2
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Using the Windows Experience Index as a Shopping Tool
One easy to use and useful tool that you can use to compare relative performance between different machines that are running any version of Windows 7 is the Windows Experience Index (WEI) that comes with the operating system. After you … Continue reading
Posted in Computer Hardware
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