ThingsOn MQTT Bench is a simple Cross-platform .NET Core benchmark tool for MQTT brokers. It measures the maximum number of messages that can be sent to the broker in a specified amount of time.

• Measures the maximum number of messages that can be sent to an MQTT broker in a specified amount of time.
• Supports MQTT brokers running MQTT protocol versions 3.1.1 (MQTTv3.1.1) and 5.0 (MQTTv5.0).
• Allows customization of the following benchmark settings:
  • Number of MQTT clients to use for benchmarking
  • Number of messages to send per client
  • Message size in bytes
  • Quality of Service (QoS) level for messages (0, 1, or 2)
  • Whether messages should be retained by the broker
• Outputs progress information to the console during benchmarking.
• Outputs the following information upon benchmark completion:
  • Number of messages sent
  • Total time taken to send messages
  • Message throughput (messages per second)
  • Time taken to connect to the MQTT broker
  • Time taken to disconnect from the MQTT broker
  • Success rate (percentage of messages that were successfully sent)
  • Loss rate (percentage of messages that were not successfully sent)

To use ThingsOn MQTT Bench, first make sure that you have .NET 7 installed on your system. Then, download the latest release of ThingsOn MQTT Bench for your operating system from the releases page.

Once you have downloaded the tool, you can run it from the command line by navigating to the directory where the tool is located and running the following command:

dotnet ThingsOn.MQTT.Bench.dll

By default, the tool will read its settings from a TOML file named config.toml in the same directory as the tool. You can customize the settings by editing this file.

The following settings are available in the config.toml file:

• Mqtt: MQTT broker settings
  • ServerUri: URI of the MQTT broker
  • Port: Port number of the MQTT broker
  • MqttVersion: MQTT protocol version (either "V311" or "V500")
  • Username: Username for connecting to the MQTT broker
  • Password: Password for connecting to the MQTT broker
  • KeepAlivePeriod: Keep-alive period in seconds
  • CleanSession: Whether to use a clean session when connecting to the MQTT broker
• Benchmark: Benchmark settings
  • ClientCount: Number of MQTT clients to use for benchmarking
  • MessageCount: Number of messages to send per client
  • MessageSize: Size of messages in bytes
  • Qos: Quality of service level for messages (0, 1, or 2)
  • Retain: Whether messages should be retained by the broker

To build ThingsOn MQTT Bench from code, follow these steps:

1. Install .NET 7.
2. Clone the GitHub repository:

git clone https://github.com/volkanalkilic/ThingsOn.MQTT.Bench.git

3. Navigate to the cloned repository directory:
4. Build the project using the following command:

dotnet build

5. Once the project has built successfully, you can run the benchmark using the following command:

dotnet run --project ThingsOn.MQTT.Bench

Contributions to ThingsOn MQTT Bench are welcome! If you find a bug or would like to suggest a new feature, please open an issue on the GitHub repository.

If you would like to contribute code to ThingsOn MQTT Bench, please fork the repository and submit a pull request.

• .NET Core - The .NET framework used
• MQTTnet - The MQTT library used
• Nett - The TOML library used

This project is licensed under the MIT License - see the LICENSE.md file for details.