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hi there,
I have powertop tlp on the system, and the idle power on ac is pretty good but it SKYROCKETS when switching to battery-
Just wanted to just see what cpugovernor was in use.
So it looks like the service is not enabled on my machine ( likely running on kernelmode services? see below )
heres the output from cpupower freq info-
$ cpupower frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us
hardware limits: 1.20 GHz - 2.40 GHz
available frequency steps: 2.40 GHz, 2.40 GHz, 2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz, 1.33 GHz, 1.20 GHz
available cpufreq governors: conservative powersave userspace ondemand performance
current policy: frequency should be within 1.20 GHz and 2.40 GHz.
The governor "ondemand" may decide which speed to use
within this range.
[b] current CPU frequency: Unable to call hardware
current CPU frequency: 1.20 GHz (asserted by call to kernel)[/b]
boost state support:
Supported: yes
Active: yes
33999 MHz max turbo 4 active cores
33999 MHz max turbo 3 active cores
33999 MHz max turbo 2 active cores
33999 MHz max turbo 1 active cores
thanks again for the insights as always
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Just wanted to just see what cpugovernor was in use
From the output it looks like ondemand, check with:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
the idle power on ac is pretty good but it SKYROCKETS when switching to battery
Probably a measurement artefact, powwertop isn't very accurate — can you verify the usage independently?
“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.
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i honestly dont know enough as to how to do that ( working knowledge of linux only)- id have to look into it further*
to clarify- yes the cpugovernor is on demand (confirmed)
no can't verify just yet independently
Last edited by i33te (2018-03-29 00:31:35)
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I wouldn't worry about it too much, the only way to accurately measure power consumption is with an external meter, any other methods are not at all reliable.
“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.
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thanks for the info
offside question- should i be worried about this little bit of the reply
current policy: frequency should be within 1.20 GHz and 2.40 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
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should i be worried about this little bit of the reply
I don't see why but perhaps check the journal for any glaring errors:
sudo journalctl -b
“Et ignotas animum dimittit in artes.” — Ovid, Metamorphoses, VIII., 18.
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