Hmmmm… actually you’re right! I was thinking that there’s going to be a single I/O interval between the end of the input buffer and the start of the output buff

Hmmmm… actually you’re right! I was thinking that there’s going to be a single I/O interval between the end of the input buffer and the start of the output buffer, but now I realize that this means 2 x I/O interval latency between the input and output streams.