Load testing

[Mirko-von-Leipzig]

Create a simple load testing application which tests the throughput of our RPC API under various conditions.

We currently have no idea what throughput to expect, but a user reported getting only 25 requests per second throughput (which is not great). This load test was done using locust, a python load testing framework. Rust has a similar framework goose which we could use as a starting point.

The testing process can (and probably should) be manual. Things to test would be:

1. Throughput of RPC queries individually
2. Throughput of several mixes of queries
   maybe under various conditions, although this would need to be done by the tester:
3. sync'ing from genesis
4. sync'ing in the middle
5. at head of chain