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Pro SQL Server 2019 Wait Statistics: A Practical Guide to Analyzing Performance in SQL Server
book

Pro SQL Server 2019 Wait Statistics: A Practical Guide to Analyzing Performance in SQL Server

by Enrico van de Laar
June 2019
Intermediate to advanced
407 pages
9h 30m
English
Apress
Content preview from Pro SQL Server 2019 Wait Statistics: A Practical Guide to Analyzing Performance in SQL Server
© Enrico van de Laar 2019
Enrico van de LaarPro SQL Server 2019 Wait Statisticshttps://doi.org/10.1007/978-1-4842-4916-1_11

11. Preemptive Wait Types

Enrico van de Laar1 
(1)
Drachten, The Netherlands
 
In Chapter 1, “Wait Statistics Internals,” we briefly touched upon SQL Server’s non-preemptive scheduling model that is used to perform thread scheduling and management. Unlike SQL Server, the Windows operating system uses preemptive scheduling to schedule and manage threads. Sometimes SQL Server has to use Windows functions to perform specific actions through the operating system, for instance, when checking Active Directory permissions. When this occurs, SQL Server will have to ask a thread from the Windows operating system, outside of SQL Server, ...
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Publisher Resources

ISBN: 9781484249161