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Learning PostgreSQL

You're reading from Learning PostgreSQL

Product type Book

Published in Nov 2015

Publisher Packt

ISBN-13 9781783989188

Pages 464 pages

Edition 1st Edition

Languages

Concepts

Database Programming

Table of Contents (21) Chapters

Learning PostgreSQL

Credits

About the Authors

About the Reviewers

www.PacktPub.com

Preface

1. Relational Databases

2. PostgreSQL in Action

3. PostgreSQL Basic Building Blocks

4. PostgreSQL Advanced Building Blocks

5. SQL Language

6. Advanced Query Writing

7. Server-Side Programming with PL/pgSQL

8. PostgreSQL Security

9. The PostgreSQL System Catalog and System Administration Functions

10. Optimizing Database Performance

11. Beyond Conventional Data types

12. Testing

13. PostgreSQL JDBC

14. PostgreSQL and Hibernate

Index

Chapter 10. Optimizing Database Performance

There are several aspects of tuning database performance, such as hardware configuration, network setting, database configuration, rewriting of SQL queries, maintenance of indexes, and so on. In this chapter, we will focus only on basic configuration and query rewriting.

Generally speaking, tuning database performance requires knowledge about the system's nature; for example, we need to know whether the database system can be used for online analytical processing (OLAP) or online transactional processing (OLTP). The database system may be IO or CPU bound; these define the whole database cluster setup, such as the number of CPUs, CPU power, RAID setup, amount of RAM, and the database's cluster configuration. After the database server is configured, one could use benchmark framework, such as pgbench, to calculate the number of transactions per second (TPS) for the database server setup.

The second step in optimizing database performance is carried...

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