frequency-info -------------- analyzing CPU 0: driver: intel_pstate CPUs which run at the same hardware frequency: 0 CPUs which need to have their frequency coordinated by software: 0 maximum transition latency: Cannot determine or is not supported. hardware limits: 400 MHz - 4.40 GHz available cpufreq governors: performance powersave current policy: frequency should be within 400 MHz and 4.40 GHz. The governor "powersave" may decide which speed to use within this range. current CPU frequency: Unable to call hardware current CPU frequency: 4.22 GHz (asserted by call to kernel) boost state support: Supported: yes Active: yes idle-info --------- CPUidle driver: intel_idle CPUidle governor: menu analyzing CPU 0: Number of idle states: 5 Available idle states: POLL C1E C6 C8 C10 POLL: Flags/Description: CPUIDLE CORE POLL IDLE Latency: 0 Usage: 16173 Duration: 788949 C1E: Flags/Description: MWAIT 0x01 Latency: 2 Usage: 148798 Duration: 31428906 C6: Flags/Description: MWAIT 0x20 Latency: 170 Usage: 23723 Duration: 14928275 C8: Flags/Description: MWAIT 0x40 Latency: 200 Usage: 30474 Duration: 22608869 C10: Flags/Description: MWAIT 0x60 Latency: 230 Usage: 389466 Duration: 1477221237