Small wrapper to use PowerTOP in Python
Project description
A wrapper to use PowerTOP easily in Python.
Also provides a command to get the results as JSON.
Install
install PowerTOP (e.g. sudo aptitude install powertop on Debian-based distributions)
sudo python3 -m pip install powertop
Short example
Run as root, in a Python 3 shell:
import powertop import json measures = powertop.Powertop().get_measures(time=1) print(json.dumps(measures['Device Power Report'], indent=4))
Or, as a shell command:
sudo python3 -m powertop
Outputs:
[
{
"Usage": "66.4%",
"Device Name": "CPU core"
},
{
"Usage": "66.4%",
"Device Name": "DRAM"
},
{
"Usage": "66.4%",
"Device Name": "CPU misc"
},
{
"Usage": "18.8 ops/s",
"Device Name": "GPU misc"
},
{
"Usage": "18.8 ops/s",
"Device Name": "GPU core"
},
...
How to use
First, call PowerTOP:
import powertop measures = powertop.Powertop().get_measures(time=1, iterations=1)
Sections
You can then access sections. They may vary across systems and PowerTOP versions.
On my computer, they are:
Top 10 Power Consumers
Processor Idle State Report
Processor Frequency Report
Overview of Software Power Consumers
Device Power Report
Process Device Activity
Software Settings in Need of Tuning
Untunable Software Issues
Optimal Tuned Software Settings
You can find yours with this command:
sudo python3 -c "import powertop; measures = powertop.Powertop().get_measures(time=1); print(measures.keys())"
Reading sections
Each section is a list JSON-like data (strings, lists and dicts).
Run sudo python3 -m powertop to get a taste of what it looks like.
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
