Message throughput is how fast a WebSocket server can parse and respond to a message. Some people consider this to be a good reference of a framework/library/server's performance. This tool measures the message throughput under load by mocking concurrent clients.

Now with 100% more bleeding edge ⚡ asyncio goodness.

Python 3.6.5+.

pip install -r requirements.txt

This program expects the host to be an echo server and measures the time between sending a message and recieving the same message back from the host. It performs this for a number of client connections simultaneously and is designed to produce repeatable results.

python bench.py will launch the benchmark and print statistics to stdout. If the log file path is to a non-file then one will be created otherwise results will be appended to the existing file.

The raw results are in CSV format with each line representing a client's roundtrip times.

E.g., 0.1, 0.1, 0.1 for one client performing three roundtrips.

Full end-to-end testing via unittest.

python -m unittest
...
----------------------------------------------------------------------
Ran 3 tests in 8.371s

OK

MIT (c) 2019 healeycodes.

Inspiration taken from the unmaintained JavaScript project websocket-benchmark.