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This project allows you to benchmark your blockchain infrastructure. It uses Locust under the hood.

Chainbench lets you to easily define profiles for any EVM-compatible chain. You can use not only hard-coded values but also real chain data to generate dynamic call parameters.

Main features:

• Built-in profiles for Ethereum, Binance Smart Chain, Polygon, Oasis, and Avalanche
• Support for custom profiles
• Dynamic call params generation using real chain data
• Headless and web UI modes

Check out the docs for more information about the profile creation.

• Python 3.10+
• Poetry 1.2+ (installation instructions here)

pip install chainbench

After installation, you can run the tool using the following command:

chainbench start --help

Clone the repository:

git clone [email protected]:chainstacklabs/chainbench.git

Install dependencies:

cd chainbench && poetry install --without dev

When installing using Poetry, you can run the tool using the following command:

poetry run chainbench start --help

All the examples below assume that you have installed the tool using pip. If you installed it using poetry, replace chainbench with poetry run chainbench.

To learn about the parameters and flags, run the following command:

chainbench start --help

Basic usage is:

chainbench start --profile bsc --users 50 --workers 2 --test-time 12h --target https://node-url --headless --autoquit

This will run a load test for BSC with 2 workers, 50 users and 12 hours test time in headless mode. After the test is finished, the tool will automatically quit.

• -p, --profile: Specifies the profile to use for the benchmark. Available profiles can be found in the profile directory. Sample usage -p bsc.general
• -u, --users: Sets the number of simulated users to use for the benchmark.
• -w, --workers: Sets the number of worker threads to use for the benchmark.
• -t, --test-time: Sets the duration of the test to run.
• --target: Specifies the target blockchain node URL that the benchmark will connect to.
• --headless: Runs the benchmark in headless mode, meaning that no graphical user interface (GUI) will be displayed during the test. This is useful for running the test on a remote server or when the GUI is not needed.
• --autoquit: Tells the Chainbench tool to automatically quit after the test has finished. This is useful for running the benchmark in an automated environment where manual intervention is not desired.
• --help: Displays the help message.
• -dt, --debug-trace-methods: Enables tasks tagged with debug or trace to be executed
• -E, --exclude-tags: Exclude tasks tagged with custom tags from the test. You may specify this option multiple times --help Show this message and exit.

You may also run chainbench start --help for the full list of parameters and flags.

Default profiles are located in the profile directory. For a tutorial on how to create custom profiles, please refer to this document.

You can also use the -d or --profile-dir flag to specify a custom directory with profiles. For example:

chainbench start --profile-dir /path/to/profiles --profile my-profile --users 50 --workers 2 --test-time 12h --target https://node-url --headless --autoquit

This will run a load test using /path/to/profiles/my-profile.py profile.

It's possible to group profiles into directories. For example, you can create a directory called bsc and put all the BSC profiles there. Then you can run a load test using the following command:

chainbench start --profile-dir /path/to/profiles --profile bsc.my-profile --users 50 --workers 2 --test-time 12h --target https://node-url --headless --autoquit

Chainbench will look for the profile in /path/to/profiles/bsc/my-profile.py. Currently, only one level of nesting is supported.

There are built-in evm.light and evm.heavy profiles for EVM-compatible chains.

Here's an example of how to run a load test for Ethereum using the evm.light profile:

chainbench start --profile evm.light --users 50 --workers 2 --test-time 12h --target https://node-url --headless --autoquit

Run the following command to run a load test for BSC in UI mode. It will start a web server on port 8089. Target is required to initialize the test data, however you may change the target endpoint later in the UI, along with the number of users, spawn rate and test time.

chainbench start --profile bsc.general --workers 1 --target https://any-working-node-endpoint.com

If you want to run a load test for BSC in headless mode, run the following command:

chainbench start --profile bsc --workers 4 --users 100 --test-time 1h --target https://node-url --headless --autoquit

It will run a load test for BSC with 4 workers, 100 users and 1 hour test time.

In practice, you will probably want to run the benchmark on a remote server. Here's the example utilizing nohup:

nohup chainbench start --profile bsc --workers 4 --users 100 --test-time 1h --target https://node-url --headless --autoquit &

This project is licensed under the Apache 2.0 License.