# cpufreq-set > A tool to modify CPU frequency settings. > Requires root privileges. - Set the CPU frequency policy of CPU 1 to "userspace": `sudo cpufreq-set -c {{1}} -g {{userspace}}` - Set the current minimum CPU frequency of CPU 1, value range between the output of command `cpufreq-info -l`: `sudo cpufreq-set -c {{1}} --min {{min_frequency}}` - Set the current maximum CPU frequency of CPU 1, value range between the output of command `cpufreq-info -l`: `sudo cpufreq-set -c {{1}} --max {{max_frequency}}` - Set the current work frequency of CPU 1 , value range between the output of command `cpufreq-info -l` (requires "userspace" policy to be loaded): `sudo cpufreq-set -c {{1}} -f {{work_frequency}}`