KDE CPU Frequence Utility. For Linux, tested on Intel CPU.
Used paths:
(for ex.: 2001 2000 1600 1200 800) /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies
/sys/devices/system/cpu/cpu*/cpufreq/scaling_available_governors
/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
(for ex.: 800) /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq
/sys/devices/system/cpu/cpu*/cpufreq/scaling_max_freq
/sys/devices/system/cpu/cpu*/cpufreq/scaling_min_freq
not for cpu0 /sys/devices/system/cpu/cpu*/online
(for ex.: 0-1) /sys/devices/system/cpu/possible
(for ex.: 0-1) /sys/devices/system/cpu/present