From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: [PATCH net-next 0/3] tcp: better receiver autotuning Date: Sun, 10 Dec 2017 17:55:01 -0800 Message-ID: <20171211015504.26551-1-edumazet@google.com> Cc: netdev , Eric Dumazet , Eric Dumazet To: "David S . Miller" , Neal Cardwell , Yuchung Cheng , Soheil Hassas Yeganeh , Wei Wang , Priyaranjan Jha Return-path: Received: from mail-it0-f67.google.com ([209.85.214.67]:36666 "EHLO mail-it0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752066AbdLKBzK (ORCPT ); Sun, 10 Dec 2017 20:55:10 -0500 Received: by mail-it0-f67.google.com with SMTP id d16so12334828itj.1 for ; Sun, 10 Dec 2017 17:55:10 -0800 (PST) Sender: netdev-owner@vger.kernel.org List-ID: 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