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how does it work? #1
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The tool in its current form on Github does orchestrate the software in Docker containers and pulls their metrics via a stream from This approach is just chosen for the prototype. As you pointed out correctly it does not measure energy directly and a problem with this approach is:
Scaphandre I know, but since it uses RAPL it has problems of its own like the limitation to Intel CPUs and also a known strong bias and very off dynamic to the real input So at the moment this is just our outward facing prototype and we are currently in the process of doing the needed research on our Test-Systems where we setup an electrical I updated the readme to make the docker step and the current problems more obivious. Thanks for taking the time to have a look at the tool. I also wrote you an email with some further questions. |
Hey Chris, Update: We are not using docker-stats anymore, but now have separate reporters that live in https://github.com/green-coding-berlin/green-metrics-tool/tree/integration-tests-initial-pipeline-testing/tools/metric_providers Their resolution is up to 1 ms, which should suffice for at least all projects I know of :) In regards to energy measurement: Our energy reporters use Intel RAPL now. Internally we also have DC measurements using a Pico HRDL ADC-24 (https://www.picotech.com/data-logger/adc-20-adc-24/precision-data-acquisition) We do have measurements with the data from it online:
However, since it runs on a separate machine for now we have no possibilty to make it available through our Measuring Service on https://metrics.green-coding.org/request.html But we are working on it ... :) Our new documentation is also only at https://docs.green-coding.org/ which will hopefully clear up more questions. I am closing the comment and hope everything was answered. If not please feel free to open a new issue. |
hi there.
I'm trying to understand how this metrics tool works, but I'm struggling to understand it from looking at just the code - would you please point me to the documentation for understanding what's happening under the hood?
I've read this:
https://www.green-coding.org/blog/green-metrics-measurement-tool/
And I've followed the link to the project demo:
https://github.com/green-coding-berlin/green-metric-demo-software
But it's still not obvious to me - are you measuring things like the increase in CPU usage reported by the docker containers?
I've contributed some docs to Scaphandre, a similar project for measuring the energy usage of compute, and you can see how they work out the energy you an attribute to a given process below:
https://hubblo-org.github.io/scaphandre-documentation/explanations/how-scaph-computes-per-process-power-consumption.html
I'm happy to add some more documentation to this project once I understand it 👍
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