Frequency Scaling in Ubuntu

Computing moves very fast, faster than we would like sometimes. One result of this is that in many cases we have a more powerful machine or device than what we need for our daily tasks. Such a case happens in many computers, which we buy new and only use it to surf the Internet or write in the word processor, tasks that require few resources.

There are also special cases: laptops, which in many cases we only want for a task, a multimedia presentation, writing in a blog or reading a simple pdf, since such a task limits the battery or the parallel processes that waste resources and hinder The operating system.

En GNU / Linux and in Ubuntu worked in these situations, giving rise to very interesting techniques such as the use of temperature sensors or today's technique that turns out to be even more useful: the Frequency Scaling.

El Frequency Scaling it is nothing more than a technique in which you tell the system to use a part of the processor thus reducing the energy and resources that the system consumes. They also created four profiles by which they modified the behavior of the system:

• on demand: Expand or reduce resource consumption based on demand.
• Conservative: It is a profile by which you try to keep the level of spending at the basic levels.
• Performance: It is the most devouring of resources since it makes the system available to the tasks trying to give the maximum possible performance in everything.
• powersave: It is the most resource-saving profile, reducing energy and system resource consumption to a minimum.

And how do I do a Frequency scaling?

The simplest method is to go to Ubuntu Software Center and install indicator-cpufreq This will install the program with which it will only be activated by going to a terminal and typing indicator-cpufreq this will activate the applet with which you can modify your system to your liking.

Finally, comment on a great tip, if you have a latest generation laptop with i3 or i7 or quad-core processorsUse this technique and you will see how your battery life lasts for more than 30 minutes.

Greetings and have a good Good Friday.

More information - Check the temperature of your computer with the command 'sensors', (mini tutorial) CPU frequency scaling on laptops