Getting information regarding cpu frequency from command line

If you want to figure out what is he the frequency of the your processor/processors and various other information related to the frequency of your system's processor, from the command line then the command cpufreq-info will come in handy.

cpufreq-info displays the frequency at which the various processors in the system are running at and also what is the possible range of frequencies for the processor.

For eg :

$ cpufreq-info analyzing CPU 0: driver: powernow-k8 CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: 106 us. hardware limits: 800 MHz - 1.60 GHz available frequency steps: 1.60 GHz, 800 MHz available cpufreq governors: conservative, powersave, userspace, ondemand, performance current policy: frequency should be within 800 MHz and 1.60 GHz. The governor "ondemand" may decide which speed to use within this range. current CPU frequency is 800 MHz. cpufreq stats: 1.60 GHz:3.88%, 800 MHz:96.12% (5568)

The other set of commands related to cpu frequency are

cpufreq-set : Which allows to modify the frequency settings for eg: the maximum frequency or the minimum frequency etc.

cpufreq-selector: This command allows you to set the frequency to one of the available values for the processor.

Have fun playing with the frequencies :-)