Book Image

Microsoft SQL Server 2012 Performance Tuning Cookbook

Book Image

Microsoft SQL Server 2012 Performance Tuning Cookbook

Overview of this book

As a DBA you must have encountered a slow running application on SQL Server, but there are various factors that could be affecting the performance. If you find yourself in this situation, don't wait, pick up this book and start working towards improving performance of your SQL Server 2012. SQL Server 2012 Performance Tuning Cookbook is divided into three major parts -- Performance Monitoring, Performance Tuning, and Performance Management--that are mandatory to deal with performance in any capacity. SQL Server 2012 Performance Tuning Cookbook offers a great way to manage performance with effective, concise, and practical recipes. You will learn how to diagnose performance issues, fix them, and take precaution to avoid common mistakes. Each recipe given in this book is an individual task that will address different performance aspects to take your SQL Server's Performance to a higher level.The first part of this book covers Monitoring with SQL Server Profiler, DTA, System statistical function, SPs with DBCC commands, Resource Monitor & Reliability, and Performance Monitor and Execution Plan. The second part of the book offers Execution Plan, Dynamic Management Views, and Dynamic Management Functions, SQL Server Cache and Stored Procedure Recompilations, Indexes, Important ways to write effective TSQL, Statistics, Table and Index Partitioning, Advanced Query tuning with Query Hints and Plan Guide, Dealing with Locking, Blocking and Deadlocking and Configuring SQL Server for optimization to boost performance.The third and final part gives you knowledge of performance management with help of Policy Based Management and Management with Resource Governor.
Table of Contents (28 chapters)
Microsoft SQL Server 2012 Performance Tuning Cookbook
Credits
About the Authors
Acknowledgement
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Monitoring compilations and recompilations at instance level using Reliability and Performance Monitor


Imagine that you have set up your production SQL server that is hosting several databases used by different applications. Initially your SQL server responds smoothly, but as the number of query requests increases, becoming larger day by day, and when it reaches several hundred per second, you notice that queries take a little longer to execute and your SQL server CPU usage is higher than what you expected.

As you may know, there can be a number of reasons for SQL server to respond poorly, such as:

  • Your physical database design and database file placement is not optimized

  • Databases are missing proper indexes

  • Queries are not optimized and are poorly written

  • Statistics are out-of-date, and query optimizer is not able to generate an optimum plan

  • Queries face blocking issues

  • You need to upgrade the CPU or increase the number of CPU cores

  • The server does not have enough memory

  • There is a problem with...