[bofaGuy]

My biggest issue is that DataDog doesn’t support PyPy. Out of curiosity, I made a new branch of our app and took out DataDog and observed a significant improvement in performance when using PyPy vs CPython on the same branch (but can’t remember how much).

[ofek]

Do you mean the Python tracing library does not work out-of-the-box?

disclaimer: I work there but not on the APM team

[bofaGuy]

Correct. I think DD only supports CPython.