Now TCP senders no longer backoff when a drop is detected, it appears we are very often receive window limited.
This series makes tcp_rcv_space_adjust() slightly more robust and responsive. Eric Dumazet (3): tcp: do not overshoot window_clamp in tcp_rcv_space_adjust() tcp: avoid integer overflows in tcp_rcv_space_adjust() tcp: smoother receiver autotuning include/linux/tcp.h | 2 +- net/ipv4/tcp_input.c | 31 ++++++++++++------------------- 2 files changed, 13 insertions(+), 20 deletions(-) -- 2.15.1.424.g9478a66081-goog