7 Layer Performance Issue

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Presentation transcript:

7 Layer Performance Issue Chad Crawford Henry Schein Practice Solutions

The Autobiography Member of Fortune 500 (#303) #10 on Barron’s list of best performing companies #1 on Fortune’s 2012 list of “World’s Most Admired Companies” in our sector 2 | 12/28/2018 | 7 Layer Performance Issue

The Setup Friday – typically lighter load No deployments or code changes One query running a very long time (minutes) Multiple copies executing History indicates it was ok yesterday

The Plan Walk through diagnostic patterns For each one: What is it? How to detect it? How to resolve it?

Let’s Get Going! 5 | 12/28/2018 | 7 Layer Performance Issue

The Seven Layers Parameter Sniffing Non-uniform Statistics Out-of-date Statistics Unnecessary Table Spool Force Index / Plan Cardinality Estimation Service Pack

Questions?