[Bug 215729] amd-pstate driver has a much higher idle power consumption for a desktop Zen 3 CPU

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=215729

--- Comment #5 from Artem S. Tashkinov (aros@gmx.com) ---
Under amd-pstate:

# lscpu

    Frequency boost:     enabled
    CPU max MHz:         4929.0000
    CPU min MHz:         550.0000
    BogoMIPS:            7599.66

(everything else is obviously the same)

# ./cpupower frequency-info
analyzing CPU 0:
  driver: amd-pstate
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 131 us
  hardware limits: 550 MHz - 4.93 GHz
  available cpufreq governors: conservative ondemand userspace powersave
performance schedutil
  current policy: frequency should be within 550 MHz and 4.93 GHz.
                  The governor "ondemand" may decide which speed to use
                  within this range.
  current CPU frequency: Unable to call hardware
  current CPU frequency: 903 MHz (asserted by call to kernel)
  boost state support:
    Supported: yes
    Active: yes
    AMD PSTATE Highest Performance: 166. Maximum Frequency: 4.93 GHz.
    AMD PSTATE Nominal Performance: 128. Nominal Frequency: 3.80 GHz.
    AMD PSTATE Lowest Non-linear Performance: 59. Lowest Non-linear Frequency:
1.75 GHz.
    AMD PSTATE Lowest Performance: 19. Lowest Frequency: 550 MHz.

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