Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




Red Hat Enterprise Linux 9 Essentials Book now available.

Purchase a copy of Red Hat Enterprise Linux 9 (RHEL 9) Essentials

Red Hat Enterprise Linux 9 Essentials Print and eBook (PDF) editions contain 34 chapters and 298 pages

Preview Book

5. Power Management

Further Reading

The Power Management Guide provides information on effectively managing power consumption on Red Hat Enterprise Linux 6.

5.1. powertop

The introduction of the tickless kernel in Red Hat Enterprise Linux 6 (refer to Section 12.4.2, “Tickless Kernel”) allows the CPU to enter the idle state more frequently, reducing power consumption and improving power management. The new powertop tool provides the ability to identify specific components of kernel and userspace applications that frequently wake up the CPU. powertop was used in development to identify and tune many applications in this release, reducing unnecessary CPU wake up by a factor of 10.

5.2. tuned

tuned is a system tuning daemon that monitors system components and dynamically tunes system settings. Utilizing ktune (the static mechanism for system tuning), tuned can monitor and tune devices (e.g. hard disk drives and ethernet devices). Red Hat Enterprise Linux 6 also introduces diskdevstat for monitoring disk operations and netdevstat for monitoring network operations.

  Published under the terms of the Creative Commons License Design by Interspire