1. Performance Tuning for Mere Mortals Part II
Don’t Reinvent the Wheel
Use what others have already built
Performance Troubleshooting
Mike Lawell
LinkedIn:
THIS IS A BEGINNER LEVEL SESSION!
Don’t reinvent the wheel, the SQL Server community

2. About Me I’ve lived in Atlanta, GA since 1996 (from Muncie, IN)
Independent Consultant (Microsoft Consulting Services, Intellinet, others)
Linchpin People Teammate
18 years of SQL Server Experience
SQL Server 6.0, 6.5, 7, 2000, 2005, 2008, 2008 R2, 2012, 2014
Worked in a variety of roles, database development, data architect, database administrator, database manager.
MCDBA, MCSE, MCSA Data Platform
Certified Scuba Instructor
Top Clients
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3. Cohort in Crime Ed Watson, MCTS aka SQL Gator Data Services Consultant
Blog: SQLGator.com
LinkedIn: LinkedIn.com/in/WatsonEd
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4. Objectives Types of Performance Problems Leading Performance Issues
Tools for Finding Performance Issues
Troubleshooting Performance Issues
Just to give me an idea of where you are… how many of you are database administrators? Database developers? Application Developers? Less than a year? 5 years or less? 10 years or less?
SQL Server 2000, SQL Server 2005, SQL Server 2008 – R2, SQL 2014? 
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5. What is not going to be covered?
Profiler (deprecated)
Coding Best Practices (mostly)
Indexes (kind of)
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6. Types of Performance Problems
No Information
Everything is slow!
The Database is slow!
At least a little information
The #$%# Page is slow!
Report is Slow!
The query is slow!
Everything, Database - Tempdb, Server Resources, Perception
Page, report query is slow.
START THE DEMOS HERE… COME BACK AFTER DEMOS.
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7. Demos Slow disk Page Splits TempDb file contention CXPACKET waits
How to examine IO subsystem latencies from within SQL Server by Paul Randal
A Performance Troubleshooting Methodology for SQL Server by Jonathan Kehayias
Page Splits
Tracking page splits using the transaction log by Paul Randal
How to Find Bad Page Splits by Bradley Ball
TempDb file contention
Analyzing Tempdb Contention by Adam Machanic
Optimizing tempdb configuration with SQL Server 2012 Extended Events by Jonathan Kehayias
A SQL Server DBA myth a day: (12/30) tempdb should always have one data file per processor core by Paul Randal
CXPACKET waits
Tuning ‘cost threshold for parallelism’ from the Plan Cache by Jonathan Kehayias
SQL Server Virtualization: Get Your Hands Off That MAXDOP by Brent Ozar
Recompiles
An XEvent a Day (7 of 31) – Targets Week – bucketizers by Jonathan Kehayias

8. Go to Demos

9. Page Splits
If you're adding data to your database, you will have page splits.
Good Page Splits
Bad Page Splits
New
Data
New
Data
Data Pages
Data Pages
LOP DELETE

10. Back to Demos

11. CXPACKET Waits
CXPACKET WAIT 1 2 3 4 5 6

12. Back to Demos

13. Other Key Articles and Blogs
Invalid statistics (no maintenance)
Eight Steps to Effective SQL Server Monitoring
General Resources
Accidental DBA by Jonathan Kehayias and Ted Krueger

14. Execution Plans SArg-able Implicit Conversions cxpacket
Parameter Sniffing

15. Blogs, Freebies and Cool Stuff
SQL Server Perfmon Counters Poster
Your SQL med kit by Brent Ozar Unlimited
Red-Gate Books
Plan Explorer
My Favorite Performance Tuning Blogs
Denny Cherry
SQLSkills (all of the members)
Brent Ozar
SQL Server IO - Wes Brown
Technobabble by Klee
SQL Swampland – Ed Watson
Kalen Delaney

16. Thank You! Please complete the Eval and make comments!
Mike Lawell
twitter.com/sqldiver
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