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Measuring “Observer Overhead” of SQL Trace vs. Extended Events

SQL Server offers two methods of collecting diagnostic and troubleshooting data about the workload executed against the server: SQL Trace and Extended Events. Starting in SQL Server 2012, the Extended...

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An important change to Extended Events in SQL Server 2012

As you have most certainly heard elsewhere, SQL Server 2012 finally offers a version of Extended Events that is a viable alternative to SQL Trace, in terms of both better performance and event parity....

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Impact of the query_post_execution_showplan Extended Event in SQL Server 2012

One of the toughest challenges in SQL Server is troubleshooting problems with parameter sensitivity or cardinality estimation that cause performance degradation of a workload.  Generally you'll need to...

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Observer Overhead and Wait Type Symptoms

Many people use wait statistics as part of their overall performance troubleshooting methodology, as do I, so the question I wanted to explore in this post is around wait types associated with observer...

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