Yuchung Cheng 89fe18e44f tcp: extend F-RTO to catch more spurious timeouts ... Current F-RTO reverts cwnd reset whenever a never-retransmitted packet was (s)acked. The timeout can be declared spurious because the packets acknoledged with this ACK was transmitted before the timeout, so clearly not all the packets are lost to reset the cwnd. This nice detection does not really depend F-RTO internals. This patch applies the detection universally. On Google servers this change detected 20% more spurious timeouts. Suggested-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-01-13 22:37:16 -05:00
..
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf	2017-01-05 11:49:57 -05:00
af_inet.c	ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob	2016-12-29 11:38:31 -05:00
ah4.c
arp.c
cipso_ipv4.c
datagram.c
devinet.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
esp4.c	esp4: Fix integrity verification when ESN are used	2016-11-30 11:09:39 +01:00
fib_frontend.c	ipv4: Do not allow MAIN to be alias for new LOCAL w/ custom rules	2017-01-03 09:38:34 -05:00
fib_lookup.h
fib_rules.c
fib_semantics.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-01-11 14:43:39 -05:00
fib_trie.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
fou.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-10-30 12:42:58 -04:00
gre_demux.c
gre_offload.c	net: add recursion limit to GRO	2016-10-20 14:32:22 -04:00
icmp.c	net: for rate-limited ICMP replies save one atomic operation	2017-01-09 15:49:12 -05:00
igmp.c	igmp: Make igmp group member RFC 3376 compliant	2017-01-02 13:01:03 -05:00
inet_connection_sock.c	inet: Fix get port to handle zero port number with soreuseport set	2016-12-17 11:13:19 -05:00
inet_diag.c	tcp: add reordering timer in RACK loss detection	2017-01-13 22:37:16 -05:00
inet_fragment.c
inet_hashtables.c	net: Require exact match for TCP socket lookups if dif is l3mdev	2016-10-17 10:17:05 -04:00
inet_timewait_sock.c	ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob	2016-12-29 11:38:31 -05:00
inetpeer.c
ip_forward.c	ipv4: allow local fragmentation in ip_finish_output_gso()	2016-11-03 16:10:26 -04:00
ip_fragment.c
ip_gre.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ip_input.c
ip_options.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ip_output.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ip_sockglue.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-01-05 11:03:07 -05:00
ip_tunnel_core.c	net: make ndo_get_stats64 a void function	2017-01-08 17:51:44 -05:00
ip_tunnel.c	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
ip_vti.c	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
ipcomp.c
ipconfig.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ipip.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
ipmr.c	ipmr: improve hash scalability	2017-01-12 16:48:26 -05:00
Kconfig	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
Makefile	net: ip, diag -- Add diag interface for raw sockets	2016-10-23 19:35:24 -04:00
netfilter.c	netfilter: Update ip_route_me_harder to consider L3 domain	2016-11-24 12:44:36 +01:00
ping.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-12-16 10:24:44 -08:00
proc.c	ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob	2016-12-29 11:38:31 -05:00
protocol.c
raw_diag.c	net: ip, raw_diag -- Use jump for exiting from nested loop	2016-11-03 15:25:26 -04:00
raw.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
route.c	net: ipv4: remove disable of bottom half in inet_rtm_getroute	2017-01-09 13:54:44 -05:00
syncookies.c	syncookies: use SipHash in place of SHA1	2017-01-09 13:58:57 -05:00
sysctl_net_ipv4.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-01-11 14:43:39 -05:00
tcp_bbr.c	tcp_bbr: add a state transition diagram and accompanying comment	2016-10-29 17:12:43 -04:00
tcp_bic.c
tcp_cdg.c
tcp_cong.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-11-22 13:27:16 -05:00
tcp_cubic.c
tcp_dctcp.c	Revert "dctcp: update cwnd on congestion event"	2016-12-06 11:34:24 -05:00
tcp_diag.c
tcp_fastopen.c
tcp_highspeed.c	tcp: add cwnd_undo functions to various tcp cc algorithms	2016-11-21 13:20:17 -05:00
tcp_htcp.c
tcp_hybla.c	tcp: make undo_cwnd mandatory for congestion modules	2016-11-21 13:20:17 -05:00
tcp_illinois.c	tcp: add cwnd_undo functions to various tcp cc algorithms	2016-11-21 13:20:17 -05:00
tcp_input.c	tcp: extend F-RTO to catch more spurious timeouts	2017-01-13 22:37:16 -05:00
tcp_ipv4.c	tcp: add reordering timer in RACK loss detection	2017-01-13 22:37:16 -05:00
tcp_lp.c	tcp: make undo_cwnd mandatory for congestion modules	2016-11-21 13:20:17 -05:00
tcp_metrics.c	tcp: do not export tcp_peer_is_proven()	2017-01-09 16:34:39 -05:00
tcp_minisocks.c	ipv4: Namespaceify tcp_tw_recycle and tcp_max_tw_buckets knob	2016-12-29 11:38:31 -05:00
tcp_nv.c
tcp_offload.c
tcp_output.c	tcp: add reordering timer in RACK loss detection	2017-01-13 22:37:16 -05:00
tcp_probe.c
tcp_rate.c
tcp_recovery.c	tcp: enable RACK loss detection to trigger recovery	2017-01-13 22:37:16 -05:00
tcp_scalable.c	tcp: add cwnd_undo functions to various tcp cc algorithms	2016-11-21 13:20:17 -05:00
tcp_timer.c	tcp: add reordering timer in RACK loss detection	2017-01-13 22:37:16 -05:00
tcp_vegas.c	tcp: make undo_cwnd mandatory for congestion modules	2016-11-21 13:20:17 -05:00
tcp_vegas.h
tcp_veno.c	tcp: add cwnd_undo functions to various tcp cc algorithms	2016-11-21 13:20:17 -05:00
tcp_westwood.c	tcp: make undo_cwnd mandatory for congestion modules	2016-11-21 13:20:17 -05:00
tcp_yeah.c	tcp: add cwnd_undo functions to various tcp cc algorithms	2016-11-21 13:20:17 -05:00
tcp.c	tcp: make TCP_INFO more consistent	2017-01-09 17:07:54 -05:00
tunnel4.c
udp_diag.c
udp_impl.h	udplite: call proper backlog handlers	2016-11-24 15:32:14 -05:00
udp_offload.c	net: add recursion limit to GRO	2016-10-20 14:32:22 -04:00
udp_tunnel.c
udp.c	udp: inuse checks can quit early for reuseport	2017-01-06 20:56:48 -05:00
udplite.c	udplite: call proper backlog handlers	2016-11-24 15:32:14 -05:00
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c
xfrm4_output.c
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c