Hi,
I’m sorry if this is a trivial question, but I noticed that when I’m running powertop I don’t see any C-states below C3. I moved to TrueNAS Scale Beta yesterday to check if a more recent kernel helps, and while I now see the GPU (after using the command mentioned in the TrueNAS Scale Beta Docs under known issues) I still only see C1 to C3:
Pkg(OS) | Core(OS) | CPU(OS) 0 CPU(OS) 1
Powered On 0.0% | POLL 0.0% | POLL 0.0% 0.0 ms 0.0% 0.0 ms
C1_ACPI 0.0% | C1_ACPI 0.0% | C1_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
C2_ACPI 0.0% | C2_ACPI 0.0% | C2_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
C3_ACPI 0.0% | C3_ACPI 0.0% | C3_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
RC6pp 0.0% | |
| Core(OS) | CPU(OS) 2 CPU(OS) 3
| POLL 0.0% | POLL 0.0% 0.0 ms 0.0% 0.0 ms
| C1_ACPI 0.0% | C1_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
| C2_ACPI 0.0% | C2_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
| C3_ACPI 0.0% | C3_ACPI 0.0% 0.0 ms 0.0% 0.0 ms
| |
| GPU |
| Powered On 0.0% |
| RC6 100.0% |
| RC6p 0.0% |
| RC6pp 0.0% |
| |
Also, to make sure there was no issue with powertop I also checked
# grep . /sys/devices/system/cpu/cpu0/cpuidle/state*/name
/sys/devices/system/cpu/cpu0/cpuidle/state0/name:POLL
/sys/devices/system/cpu/cpu0/cpuidle/state1/name:C1_ACPI
/sys/devices/system/cpu/cpu0/cpuidle/state2/name:C2_ACPI
/sys/devices/system/cpu/cpu0/cpuidle/state3/name:C3_ACPI
Is this expected or am I doing something wrong?
Thanks a lot in advance for any help!
Cheers,
Dinyar