--repeat

The --repeat configuration value tells Maelstrom to repeat every test the specified number of times. When combined with a large cluster, this can be very powerful.

Sometimes a bug is very hard to reproduce. In this case, you could run the test that sometimes reproduces the bug with --repeat=1000, or more. In this situation, it’s useful to add --stop-after.

Another time --repeat can be useful is when you have a test of some nondeterministic code and you want to really stress test it. Running the tests with a large --repeat can really help to instill confidence.