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Red Hat Enterprise Linux Server Cookbook

You're reading from   Red Hat Enterprise Linux Server Cookbook Over 60 recipes to help you build, configure, and orchestrate RHEL 7 Server to make your everyday administration experience seamless

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Product type Paperback
Published in Dec 2015
Publisher
ISBN-13 9781784392017
Length 250 pages
Edition 1st Edition
Tools
Concepts
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Authors (2):
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Jakub Gaj Jakub Gaj
Author Profile Icon Jakub Gaj
Jakub Gaj
William Leemans William Leemans
Author Profile Icon William Leemans
William Leemans
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Toc

Table of Contents (12) Chapters Close

Preface 1. Working with KVM Guests FREE CHAPTER 2. Deploying RHEL "En Masse" 3. Configuring Your Network 4. Configuring Your New System 5. Using SELinux 6. Orchestrating with Ansible 7. Puppet Configuration Management 8. Yum and Repositories 9. Securing RHEL 7 10. Monitoring and Performance Tuning Index

Monitoring CPU performance


This recipe will show you how to visualize using pmchart and command-line tools to monitor your CPU's performance. We will have a look at the following metrics:

  • kernel.all.cpu.wait.total

  • kernel.all.cpu.irq.hard

  • kernel.all.cpu.irq.soft

  • kernel.all.cpu.steal

  • kernel.all.cpu.sys

  • kernel.all.cpu.user

  • kernel.all.cpu.nice

  • kernel.all.cpu.idle

How to do it…

This will show you how to create the text and graphical representation of performance data. Perform the following steps:

  1. Display live data for the preceding metrics with a 1-second interval for the host, localhost. Execute the following command:

    ~]# pmdumptext -H -t 1 -i -l kernel.all.cpu.wait.total kernel.all.cpu.irq.hard kernel.all.cpu.irq.soft kernel.all.cpu.steal kernel.all.cpu.sys kernel.all.cpu.user kernel.all.cpu.nice kernel.all.cpu.idle -h localhost
    
  2. Create a configuration file for pmchart to display live data called cpu_stack.conf with the following contents:

    #kmchart
    version 1
    
    chart style stacking antialiasing...
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