NAPI can yield better performance under high loads by avoiding taking an interrupt for each incomingframe.
NAPI在高负载的情况下可以产生更好的性能，它避免了为每个传入的帧都产生中断。
2
On sequence diagrams incoming and outgoing messages (A.K.A. interactions) for a sequence can be modeled by connecting the messages to the border of the frame element (as seen in Figure 2).