i'm looking for a test suite that is used to verify query isolation and correctness at high levels of concurrency. ie do you know of anything that you could run

i'm looking for a test suite that is used to verify query isolation and correctness at high levels of concurrency. ie do you know of anything that you could run against both databases to quantitatively say that postgres is better in this regard than mysql ? or that would somehow highlight that it's more complicated to get compliance from one that the other, eg because the required SQL is more complicated