Here it is explained how to visualize the power estimation computed by a Formula on a Grafana dashboard to obtain this kind of visualisation:
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This screenshot shows the visualisation of power consumption of a Firefox web browser and tools used for monitoring (MongoDB, InfluxDB, Sensor, Formula)
In this tutorial, we describe how to connect a Formula to a Grafana instance by using InfluxDB 2.X as output for Power Report.
Then, we will see how to configure Grafana to visualize the power estimation computed by the Formula.
This tutorial assumes that you know how launch a Formula and a Sensor to compute power estimation and that you have an InfluxDB 2.X running on your local machine.
The InfluxDB 2.X instances listen on port 8086 by default.
The default installation is done through Docker container.
The different images can be found on the Docker Hub
Here is an example to deploy the latest image version available.
docker run -d -p 3000:3000 grafana/grafanaAfter the launch, Grafana will be available at http://localhost:3000. On the signin page, enter admin for username and password.
Follow this documentation in order to add InfluxDB as a DataSource.
Be carefull to use the documentation matching your Grafana version.
- Go to the
"Dashboard"section on the side bar and select onNew > New dashboard - Then click on
+ Add visualisation - Then select the previously added datasource as data source
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- Click on the query edition button (the one with a pencil on it) and write the following query on the
Queryfield to request the power estimations from the InfluxDB 2.X measurement:
SELECT power FROM "power_consumption" GROUP BY targetThen write $tag_target on the ALIAS BY field to label each graph with the target name
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To display the power consumption in real time, you can update the range of the visualisation to last 5 minutes and the refresh dashboard parameter to 5s. This parameter are on the top-right corner of the UI.
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