Book Image

Red Hat Enterprise Linux Server Cookbook

By : Jakub Gaj, Leemans
5 (1)
Book Image

Red Hat Enterprise Linux Server Cookbook

5 (1)
By: Jakub Gaj, Leemans

Overview of this book

Dominating the server market, the Red Hat Enterprise Linux operating system gives you the support you need to modernize your infrastructure and boost your organization’s efficiency. Combining both stability and flexibility, RHEL helps you meet the challenges of today and adapt to the demands of tomorrow. This practical Cookbook guide will help you get to grips with RHEL 7 Server and automating its installation. Designed to provide targeted assistance through hands-on recipe guidance, it will introduce you to everything you need to know about KVM guests and deploying multiple standardized RHEL systems effortlessly. Get practical reference advice that will make complex networks setups look like child’s play, and dive into in-depth coverage of configuring a RHEL system. Also including full recipe coverage of how to set up, configuring, and troubleshoot SELinux, you’ll also discover how secure your operating system, as well as how to monitor it.
Table of Contents (12 chapters)
11
Index

Tuning your system's performance


Companies buy the best hardware their money can get, and they want to use everything optimally. However, it's not just the hardware that makes your applications run faster. Your OS will also behave differently under specific circumstances.

Tuned is a set of tools and a daemon that tunes your system's settings automatically depending on its usage. It periodically collects data from its components through plugins, which it uses to change system settings according to the current usage.

How to do it…

In this recipe, we'll ask tuned which profile to use and apply it through the following steps:

  1. First, run the following command to install the required packages:

    ~]# yum install -y tuned
    
  2. Enable and start tuned by executing the following commands:

    ~]# systemctl enable tuned
    ~]# systemctl restart tuned
    
  3. Have tuned guess the profile to be used via the following:

    ~]# tuned-adm recommend
    virtual-guest
    
  4. Finally, apply the recommended profile to tuned, as follows:

    ~]# tuned-adm...