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PostgreSQL High Performance Cookbook

You're reading from PostgreSQL High Performance Cookbook

Product type Book

Published in Mar 2017

Publisher Packt

ISBN-13 9781785284335

Pages 360 pages

Edition 1st Edition

Languages

Concepts

High Performance Programming

Authors (2):

Chitij Chauhan

Dinesh Kumar

View More author details

Table of Contents (19) Chapters

PostgreSQL High Performance Cookbook

Credits

About the Authors

About the Reviewers

www.PacktPub.com

Customer Feedback

Preface

1. Database Benchmarking

2. Server Configuration and Control

3. Device Optimization

4. Monitoring Server Performance

5. Connection Pooling and Database Partitioning

6. High Availability and Replication

7. Working with Third-Party Replication Management Utilities

8. Database Monitoring and Performance

9. Vacuum Internals

10. Data Migration from Other Databases to PostgreSQL and Upgrading the PostgreSQL Cluster

11. Query Optimization

12. Database Indexing

Monitoring CPU load

In this recipe, we are going to use the uptime command to monitor overall CPU load.

How to do it...

The uptime command tells us the following information:

Current system time
How long the system has been running
Number of currently logged on users in the system
System load average for the past 1, 5, and 15 minutes

The uptime command can be used as follows:

 bash-3.2$ uptime 
 11:44pm  up 20 day(s), 20 hr(s),  10 users,  load average: 27.80, 30.46, 33.77

Here in the preceding output we can see the current system time, 11.44pm GMT, and the system has been up and running for the last 20 days and 20 hrs without requiring a reboot. The output also tells us there are around 10 concurrently logged on users in the system. Finally, we also get the load average during the past 1, 5, and 15 minutes as 27.80, 30.46, and 33.77 respectively.

How it works...

The basic purpose of running the uptime command is to have a quick look at the current CPU load in the system. This provides...

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Authors (2)

Chitij Chauhan

Chitij Chauhan currently works as a senior database administrator at an IT-based MNC in Chandigarh. He has over 10 years of work experience in the field of database and system administration, with specialization in MySQL clustering, PostgreSQL, Greenplum, Informix DB2, SQL Server 2008, Sybase, and Oracle. He is a leading expert in the area of database security, with expertise in database security products such as IBM InfoSphere Guardium, Oracle Database Vault, and Imperva.

See other products by Chitij Chauhan

Dinesh Kumar

Dinesh Kumar is an enthusiastic open source developer and has written several open source tools for PostgreSQL. He recently announced pgBucket, a brand new job scheduler for PostgreSQL. He is also a frequent blogger at manojadinesh.blogpsot.com, where he talks more about PostgreSQL. He is currently working as a senior database engineer in OpenSCG and building the PostgreSQL cloud operations. He has more than 6 years of experience as an Oracle and PostgreSQL database administrator and developer, and is currently focusing on PostgreSQL.

See other products by Dinesh Kumar

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