Feature Request: Dynamic Tag Generation for Industry-Specific Load Testing

[cafe-jun]

To conduct realistic performance tests, it is essential to simulate environments similar to HMI (Human-Machine Interface) or SCADA systems. In these industrial settings, a single device or gateway often monitors and transmits hundreds of unique tags (data points) with various data types.

However, the current telemetry generators in this project have hard-coded keys and logic

This static approach makes it difficult to test scenarios involving diverse and large-scale tag configurations without modifying the source code.

Proposal:
I propose refactoring these generators to support dynamic tag configuration via an external file (e.g., JSON).

HMI-like Simulation: Users should be able to define custom tag names and types to match their actual industrial setup.

Scalability: I am targeting a capacity of up to 100 dynamic tags per device to test high-density data throughput.

Flexibility: Support for specifying data types (Integer, Double, Boolean) and value ranges for each tag.

Contribution:
I would like to personally work on this feature. Since I need this functionality to simulate HMI environments for my own load testing, I am ready to implement it and submit a PR.

Does this feature align with your project goals? If so, I will start the implementation. I am open to any feedback on the design or configuration structure.

[smatvienko-tb]

Hi, @cafe-jun !
Thank you for participating this project.

The most suitable existing payload type for your needs is INDUSTRIAL_PLC. It generated many configurable telemetries with doubles.

Feel free to add your own Payload type with some brief description in readme and example payload

# INDUSTRIAL_PLC - sample payload (60 lines by default) {"line001": 1.0023, "line002": 95.440321}
TEST_PAYLOAD_TYPE=INDUSTRIAL_PLC
# datapoints per single message (used for INDUSTRIAL_PLC)
TEST_PAYLOAD_DATAPOINTS=60

[cafe-jun]

Hi @smatvienko-tb,

Thank you for the detailed explanation of the existing payload types.

I see that TEST_PAYLOAD_DATAPOINTS is already used to control the number of lines in INDUSTRIAL_PLC. This is exactly the direction I was thinking of!

To enhance this, I will implement a new payload type that uses this TEST_PAYLOAD_DATAPOINTS variable to automatically generate a mix of data types. Instead of just double values named "lineXXX", the system will generate a diverse set of tags (Integer, Double, Boolean) with unique names based on the count provided.

This way, users can easily simulate high-density HMI environments just by adjusting the count, without any manual configuration. I'll get started on the implementation and update the README accordingly.