> I doubt they would have explicitly put TCP if it was not true I am not doubting they have some sort of user-space TCP implementation. I am trying to understa

> I doubt they would have explicitly put TCP if it was not true I am not doubting they have some sort of user-space TCP implementation. I am trying to understand how much of TCP they moved out of the kernel. From what I can gather they still have enough of it in the kernel such that the related syscall/uIPC overhead does not allow more than the 30% performance improvement announced.