From: Wei Wang <wei...@google.com> Date: Fri, 25 Jan 2019 10:53:18 -0800
> TCP receiver today tries not to delay the ACKs to speed up the initial > slow start (a.k.a QUICK ACK mechanism). However the previous design > does not work well with modern TCP applications that starts with an > application-level handshake. For example, a HTTPs server often > receives the SSL hello and responds right away which triggers the TCP > stack to stop the quick ack and start delaying the ACKs based only one > instance of ping-pong. This patchset changes the threshold from 1 to 3 > ping-pong transactions, so that we only start to delay the acks after > the receiver responds data quickly three times. Series applied, thanks.