TECHPULP | Why my system shows lower CPU frequency in Fedora Linux

Why my system shows lower CPU frequency in Fedora Linux

December 07, 2008

By: Neo

In Category Linux

The recent Linux distributions run a service called “cpuspeed”. This program monitors the system’s idle percentage and alters (reduces or raises) the CPUs’ clock speeds and voltages to minimize power consumption. When system needs more performance, it raises the CPU speed automatically.

You can disable the “cpuspeed” service if you don’t want this feature. Once the service is stopped, you will see correct cpu speed/frequency using the battery icon present in the system tray of KDE/GNOME desktops. You can temporarily stop the service (applies only for that boot) as shown below.

[root@techpulp]# /etc/init.d/cpuspeed stop

However it is advised to keep this service running.

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