cpufreq-info

Cpufreq-info is a command line tool used in Linux systems to retrieve information about the CPU frequency scaling. It provides details about the CPU's available frequency levels and governor settings. The tool is typically employed in environments that require power management optimization or analysis.

With cpufreq-info, you can gather relevant information about your CPU's frequency scaling capabilities, such as the minimum and maximum frequency supported by the processor, the available frequency levels, and the current frequency in use. It also displays the governor currently active, which determines how the CPU frequency is adjusted.

The tool can prove useful in evaluating the efficiency of power management settings and determining if the CPU is running at its optimal frequencies. It helps in assessing whether the system is correctly configured for power-saving purposes or if adjustments can be made.

Cpufreq-info further provides insights into the governor options available, such as ondemand, performance, powersave, conservative, and userspace. These governors control how the CPU frequency is adjusted depending on system load and power-saving requirements.

By examining the information provided by cpufreq-info, users can ascertain if any specific governor is preferable for their use case or if they need to customize the governor settings. This can enhance power performance, reduce energy consumption, or optimize the CPU utilization based on the intended workload.

Overall, cpufreq-info is a valuable command line tool for understanding and managing CPU frequency scaling, enabling system administrators, developers, and users to optimize power management and performance to meet their specific requirements.