Integration with Systems and Tools

PowerJoular exports its power data to CSV files and to a shared memory ring buffer, or prints the values directly on the terminal. As such, PowerJoular can be used in IDEs, integration systems CI/CD, or alongside other profilers or debugging tools.

All what is needed is to start PowerJoular and read the generated CSV files. PowerJoular can write these CSV files in overwrite mode, and thus reducing the overhead and size of these files.

For a program running on the same machine, the ring buffer (-r) is the fastest way: the program maps the shared memory area once, and reads the latest measurement whenever it needs it, with no file to open or parse. See Exporting Power Data for the format of the CSV files and the layout of the ring buffer.

With the systemd service provided, PowerJoular can run automatically on startup and write power consumption to /run/powerjoular folder (which can be changed in the service: the service can only write in its own folder, so a new folder also needs a ReadWritePaths= line there). Therefore, offering an automatic way for multiple tools and dashboards to get accurate and real-time power metrics in multiple platforms.