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...
View ArticleAn 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....
View ArticleImpact 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...
View ArticleObserver 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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