I've been playing around with io_uring for a while.
Still, I am yet to come across a some tests that simulate typical real life application workload.
I heard of fio but are yet to check how exactly it works and whether it might be possible to simulate real life application workload with it.
what a "real life application workload" looks like is entirely dependent on your use case, but fio is very widely used in the storage industry
it's a good first approximation to test the cartesian product of
- sequential/random
- reads/writes
- in arbitrary sizes
- with arbitrarily many workers
- with many different backends to perform such i/o including io_uring
and its reporting is solid and thorough
implementing the same for your specific workload is often not trivial at all