Klaus Aschenbrenner
Archives: October 2011
Troubleshooting THREADPOOL Waits
Today I want to talk about a specified wait type that can be sometimes very hard to troubleshoot: the THREADPOOL wait type. This wait type is specific to the internal thread scheduling mechanism inside SQL Server.
As you might know SQL Server internally uses its own "operating system" to implement… Read more
3 comments, 3,477 reads
Posted in Klaus Aschenbrenner on 25 October 2011
Query Memory Spills
When you sometimes look at Execution Plans, you can see that the SELECT operator has sometimes a so-called Memory Grant assigned. This Memory Grant is specified in kilobytes and is needed for the query execution, when some operators (like Sort/Hash operators) in the Execution Plans need memory for execution –… Read more
2 comments, 1,768 reads
Posted in Klaus Aschenbrenner on 19 October 2011
Slides & Samples for my Advanced SQL Server Troubleshooting session at SQLPASS
As I have announced in my "Advanced SQL Server Troubleshooting" session at SQLPASS today, you can find here the slides & samples for download. Thanks for attending my session J
-Klaus
0 comments, 277 reads
Posted in Klaus Aschenbrenner on 14 October 2011
SQL Server Indexing Day, 18. Jänner 2012 in Wien
Sie wollen SQL Server Abfragen um 100% oder gar 1000% beschleunigt haben? Gleichzeitig wollen Sie Hardware– und Lizenzkosten Ihrer SQL Server Anwendungen und deren Infrastruktur senken? Ein Wunschdenken? - Keineswegs!
Mit einer gut indizierten SQL Server Datenbank können Sie Geschwindigkeitsvorteile von mehreren 100% für bestimmte Abfragen gewinnen. Als positiven Seiteneffekt… Read more
0 comments, 415 reads
Posted in Klaus Aschenbrenner on 4 October 2011
Slides & Samples from my SQLbits sessions
As I have announced in all of my sessions at the SQLbits conferences in Liverpool/UK, you can find here the Slides & Samples for download. Enjoy it and thanks for attending my sessions. J
-Klaus
0 comments, 364 reads
Posted in Klaus Aschenbrenner on 2 October 2011



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