netdev - [PATCH v2 net-next 0/2] tcp: more reliable window probes

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Message-Id: <1430947585-2375-1-git-send-email-edumazet@google.com>
Date:	Wed,  6 May 2015 14:26:23 -0700
From:	Eric Dumazet <edumazet@...gle.com>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Neal Cardwell <ncardwell@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>,
	Nandita Dukkipati <nanditad@...gle.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH v2 net-next 0/2] tcp: more reliable window probes

This series address a problem caused by small rto_min timers in DC,
leading to either timer storms or early flow terminations.

We also add two new SNMP counters for proper monitoring :
TCPWinProbe and TCPKeepAlive

v2: added TCPKeepAlive counter, as suggested by Yuchung & Neal

Eric Dumazet (2):
  tcp: adjust window probe timers to safer values
  tcp:  tcp: add TCPWinProbe and TCPKeepAlive SNMP counters

 include/net/tcp.h         | 27 ++++++++++++++++++++++-----
 include/uapi/linux/snmp.h |  1 +
 net/ipv4/proc.c           |  1 +
 net/ipv4/tcp_input.c      |  2 +-
 net/ipv4/tcp_output.c     |  3 ++-
 5 files changed, 27 insertions(+), 7 deletions(-)

-- 
2.2.0.rc0.207.ga3a616c

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