This document introduces Extended Events in SQL Server as a general event-handling system that is highly scalable and configurable. It allows users to collect detailed information to troubleshoot or identify performance problems while having less performance impact than other monitoring tools. The document provides an overview of the components of Extended Events and demonstrates its use through examples. It recommends Extended Events as the new preferred tool over other options like SQL Trace and Profiler due to its performance and configuration advantages.

1. Extended Events to the Rescue
Guy Glantser
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3. Name: Guy Glantser
Email Address: guy@madeira.co.il
Twitter: @guy_glantser
Blog: www.madeirasql.com/author/guyglantser
Podcast: www.sqlserverradio.com
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• What is Extended Events?
• Why Extended Events?
• Use Cases (Demo)

5. Extended Events is a general event-
handling system for server systems.
It has a highly scalable and highly
configurable architecture that
allows users to collect as much or
as little information as is necessary
to troubleshoot or identify a
performance problem.
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6. It’s a monitoring platform…
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Module
Packages
Events Targets Actions Types Predicates Maps

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9. Yes!
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10. Well… yes!
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Test Batch Requests / Sec Batch Duration
Baseline 2345 00:13:35
Extended Events Event File 2102 (-10%) 00:15:15
Extended Events Ring Buffer 2073 (-12%) 00:15:40
Trace File 1920 (-18%) 00:16:40
Profiler (Remote) 260 (-89%) 02:03:20
Profiler (Local) 215 (-91%) 02:29:00
Source: http://sqlperformance.com/2012/10/sql-trace/observer-overhead-trace-extended-events

12. ?
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• Extended Events is the new kid in town
• It has less impact on performance
• It offers multiple targets
• It has many configuration options
• It has GUI in SSMS
• You need to get used to it…

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The best resource – Jonathan Kehayias
https://www.sqlskills.com/blogs/jonathan/category/extended-events/

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Name: Guy Glantser
Email Address: guy@madeira.co.il
Twitter: @guy_glantser
Blog: www.madeirasql.com/author/guyglantser
Podcast: www.sqlserverradio.com

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