Sql server baselines
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The document discusses SQL Server performance measurement and baseline testing, focusing on tools and scripts for performance analysis. It covers the importance of establishing baselines, reviewing wait statistics, and creating monthly or quarterly performance reviews. Additionally, it recommends various resources, tools, and blog posts for further learning about SQL Server performance optimization.
Sql server baselines
- 1. SQL Server : Performance and Baseline Measurements Mike Walsh – Linchpin People
- 2. Mike Walsh SQL Server MVP since 2011 Seacoast SQL User Group SQL Server Consultant Partner at Linchpin People Blog: Straightpath SQL Blog Linchpin People Blog
- 3. Agenda Baselines – What/Why/How are they? Tools and Scripts PAL Wait and IO Statistics Collection “Glenn Berry Scripts” Telling a performance story
- 4. PAL – Part 1 Performance Analysis For Logs Perfmon Template Files PAL Demo Show the tool Talk about perfmon Start collection and kick off a workload
- 5. Baseline & Benchmark Discussion While our workload runs.. Let’s talk about baselines… What are they? What can they do for us? How can we review and use them? Why should you all be collecting and reviewing them?
- 6. Wait Statistics What are they? What do we do with the information? Trending vs Static DEMO Look at wait statistics Look at interval wait statistics
- 7. File/IO Stats SQL Server’s View into Latency Doesn’t always match perfmon… Why? Perfmon doesn’t always match SAN stats… Why? DEMO Looking at Static Stats with Glenn Berry Scripts Looking at interval stats
- 8. How’s Your Server? Glenn Berry Scripts – Are you shooting yourself in the foot? Quick Talk about the Linchpin People WellDBA™ Exam (not marketeering.. Talk about why it’s good to check your own servers from time to time.. No matter how you do it.) What we are looking for that affects performance DEMO Running through Glenn Berry Diagnostic Scripts Live Looking at CPU-Z for CPU Power Saving (it really does kill performance!)
- 9. PAL Part 2 Workload is probably done now. Let’s talk about how to use PAL to analyze our log file. Instead of talking, let’s show it… DEMO Hopefully use the real file from the workload If not review some already staged files (ala Julia Child) Look at the insight in PAL for us Pay attention to the lessons you can get just using PAL (e.g Forwarded Records definition and solution.. Batch Requests/sec ratios to other counters, etc)
- 10. Putting it all together What’s the performance story from everything we looked at? Getting into monthly or quarterly reviews Picking counters to trend the story over time Batch requests/sec – busier now than then? User connections then/now Basic metrics then/now – capacity planning proactively Fixing where it hurts When isn’t it the database/code? When isn’t it the server? When is it both? (hint – most of the time)
- 11. Resources Blog Posts/How-To Videos My post on using PAL to generate template with video walkthrough. My post on how to use CPU-Z to look for dangers of CPU Power saving with video walkthrough. Old post of mine talking about some other free tools that are great. Brent Ozar post on doing some perfmon analysis in Excel/CSV format. Old PAL/Baseline blog post on my blog. Glenn Berry Diagnostic Scripts PAL John Sterrett Wait and IO Statistics Interval Scripts – Waits File/IO Great Books Professional SQL Server 2008 Internals and Troubleshooting (still great– even now) Professional SQL Server 2012 Internals and Troubleshooting. DVD Store –What we used to generate load on the server. Great blog post walk through on setting up from David Klee. Relog –Tool we discussed to turn blg into CSV (so you never have to store in CSV format from perfmon…) CPU-Z –Tool I talk about in the presentation and blog post above. SP_Whoisactive – Anytime I deliver this session I imagine I’ll always mention this amazing script from Adam Machanic. Link goes to lots of posts on his blog about the tool and download link.