Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Oracle Database 11gR2 Performance Tuning Cookbook

You're reading from   Oracle Database 11gR2 Performance Tuning Cookbook Shifting your Oracle Database into top gear takes a lot of know-how and fine-tuning ability. The 80+ recipes in this Cookbook will give you those skills along with the ability to troubleshoot if things starts running slowly.

Arrow left icon
Product type Paperback
Published in Jan 2012
Publisher Packt
ISBN-13 9781849682602
Length 542 pages
Edition 1st Edition
Languages
Arrow right icon
Author (1):
Arrow left icon
Ciro Fiorillo Ciro Fiorillo
Author Profile Icon Ciro Fiorillo
Ciro Fiorillo
Arrow right icon
View More author details
Toc

Table of Contents (21) Chapters Close

Oracle Database 11gR2 Performance Tuning Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
1. Starting with Performance Tuning FREE CHAPTER 2. Optimizing Application Design 3. Optimizing Storage Structures 4. Optimizing SQL Code 5. Optimizing Sort Operations 6. Optimizing PL/SQL Code 7. Improving the Oracle Optimizer 8. Other Optimizations 9. Tuning Memory 10. Tuning I/O 11. Tuning Contention Dynamic Performance Views A Summary of Oracle Packages Used for Performance Tuning Index

Tuning memory to avoid Operating System paging


Tuning memory is a task common to both the database administrators and the system administrators. However, the DBA's task is to optimize the use of the memory available to the database instance, while the system administrator will focus on the overall memory available to the system and on how to divide it among the required applications and users.

It's common best practice to have a dedicated system to manage the database, not sharing it with other applications. The system administrator and DBA tasks are very similar, so this is often the same person.

In this recipe, we will see how to configure the total memory size of our database instance to avoid problems related to the use of virtual memory and pagination.

How to do it...

The following steps will demonstrate how to tune memory to avoid Operating System paging:

  1. Connect to the database as SYSDBA using SQL*Plus:

    CONNECT / AS SYSDBA
    
  2. Show the allocated memory to the System Global Area (SGA):

    SHOW...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image