December 2017
Intermediate to advanced
434 pages
10h 14m
English
Content preview from SQL Server 2017 Administrator's Guide
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Troubleshooting wait statistics
In Chapter 6, Indexing and Performance, we have seen several wait types in the Activity Monitor tool. We can use the whole Wait Statistics approach for a thorough understanding of the SQL Server workload and undertake performance troubleshooting based on the collected data. Wait Statistics are based on the fact that, any time a request has to wait for a resource, the SQL Server tracks this information, and we can use this information for further analysis.
When we consider any user process, it can include several threads. A thread is a single unit of execution on SQL Server, where SQLOS controls the thread scheduling instead of relying on the operating system layer. Each processor core has it's own scheduler ...
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