I am using
cpufreq to scale my CPU frequency. But I do that by clicking cpufreq icon on the panel of Ubuntu 12.04.
If without a mouse, how can I show and scale CPU frequency by running commands in terminal?
cpufreq-info - Utility to retrieve cpufreq kernel information. It will list available frequency steps, available governors, current policy etc.
cpufreq-set - A tool which allows to modify cpufreq settings (try e.g.
cpufreq-set -g performance or
cpufreq-set -f 2 GHz once you know what frequencies your CPU can be set to)
You can also retrieve information about you cpufreq state directly from
/sys/devices/system/cpu/cpu*/cpufreq directory. For example available frequencies are stored in