We use Vegeta for load-testing new versions before we upgrade to them. It's worked well for us, as it allows us to save thousands of queries from live and re-run them on our test instances for realistic tests.
We're now trying to test vector searches, tho, and it's a bit of a problem: If we put the thousand-float-vector into the request URI, we get a 414 error because the URI is too long. I've tried to put it into a POST body instead, but so far I just get 400s so I'm clearly doing it wrong. If anyone either knows how to send vector requests to vegeta in an understandable way, or knows of a good alternative test framework, I'd appreciate hearing about it! Thanks