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cabfb09d87bd7980cb4e39bd2ce679a788eb7e7a
linux/net/ipv4
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Wei Wang c36207bd87 tcp: remove mss check in tcp_select_initial_window() 
In tcp_select_initial_window(), we only set rcv_wnd to
tcp_default_init_rwnd() if current mss > (1 << wscale). Otherwise,
rcv_wnd is kept at the full receive space of the socket which is a
value way larger than tcp_default_init_rwnd().
With larger initial rcv_wnd value, receive buffer autotuning logic
takes longer to kick in and increase the receive buffer.

In a TCP throughput test where receiver has rmem[2] set to 125MB
(wscale is 11), we see the connection gets recvbuf limited at the
beginning of the connection and gets less throughput overall.

Signed-off-by: Wei Wang <weiwan@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27 14:05:36 -04:00
..
netfilter
kbuild: rename *-asn1.[ch] to *.asn1.[ch]
2018-04-07 19:04:02 +09:00
af_inet.c
tcp: implement mmap() for zero copy receive
2018-04-16 18:26:37 -04:00
ah4.c
net: use -ENOSPC for transient busy indication
2017-11-03 22:11:17 +08:00
arp.c
arp: fix arp_filter on l3slave devices
2018-04-05 22:05:03 -04:00
cipso_ipv4.c
tcp/dccp: fix ireq->opt races
2017-10-21 01:33:19 +01:00
datagram.c
…
devinet.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
esp4_offload.c
esp: check the NETIF_F_HW_ESP_TX_CSUM bit before segmenting
2018-02-27 10:46:01 +01:00
esp4.c
esp4: remove redundant initialization of pointer esph
2018-02-13 13:59:03 +01:00
fib_frontend.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
fib_lookup.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_notifier.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fib_rules.c
net: fib_rules: add extack support
2018-04-23 10:21:24 -04:00
fib_semantics.c
net: Move fib_convert_metrics to metrics file
2018-04-17 23:41:15 -04:00
fib_trie.c
net/ipv4: Allow notifier to fail route replace
2018-03-29 14:10:30 -04:00
fou.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
gre_demux.c
…
gre_offload.c
gso: fix payload length when gso_size is zero
2017-10-08 10:12:15 -07:00
icmp.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
igmp.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
inet_connection_sock.c
Revert "defer call to mem_cgroup_sk_alloc()"
2018-02-02 19:49:31 -05:00
inet_diag.c
sock_diag: request _diag module only when the family or proto has been registered
2018-03-12 11:03:42 -04:00
inet_fragment.c
inet: frags: remove inet_frag_maybe_warn_overflow()
2018-03-31 23:25:39 -04:00
inet_hashtables.c
inet: Avoid unitialized variable warning in inet_unhash()
2018-02-01 09:48:42 -05:00
inet_timewait_sock.c
soreuseport: initialise timewait reuseport field
2018-04-07 22:32:32 -04:00
inetpeer.c
inetpeer: fix uninit-value in inet_getpeer
2018-04-09 10:57:35 -04:00
ip_forward.c
net: rename skb_gso_validate_mtu -> skb_gso_validate_network_len
2018-03-04 17:49:17 -05:00
ip_fragment.c
inet: frags: fix ip6frag_low_thresh boundary
2018-04-04 12:04:59 -04:00
ip_gre.c
ip_gre: clear feature flags when incompatible o_flags are set
2018-04-10 11:03:32 -04:00
ip_input.c
net: Make ip_ra_chain per struct net
2018-03-22 15:12:56 -04:00
ip_options.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ip_output.c
udp: paged allocation with gso
2018-04-26 15:08:15 -04:00
ip_sockglue.c
net: Replace ip_ra_lock with per-net mutex
2018-03-22 15:12:56 -04:00
ip_tunnel_core.c
net: store port/representator id in metadata_dst
2017-06-25 11:42:01 -04:00
ip_tunnel.c
ip_tunnel: better validate user provided tunnel names
2018-04-05 15:16:15 -04:00
ip_vti.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
ipcomp.c
…
ipconfig.c
ipconfig: Write NTP server IPs to /proc/net/ipconfig/ntp_servers
2018-04-24 13:40:42 -04:00
ipip.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
ipmr_base.c
ipmr: Make ipmr_dump() common
2018-03-26 13:14:43 -04:00
ipmr.c
net: fib_rules: add extack support
2018-04-23 10:21:24 -04:00
Kconfig
ipmr,ipmr6: Define a uniform vif_device
2018-03-01 13:13:23 -05:00
Makefile
net: Move fib_convert_metrics to metrics file
2018-04-17 23:41:15 -04:00
metrics.c
net: Move fib_convert_metrics to metrics file
2018-04-17 23:41:15 -04:00
netfilter.c
netfilter: remove struct nf_afinfo and its helper functions
2018-01-08 18:11:02 +01:00
ping.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
proc.c
tcp: export packets delivery info
2018-04-19 13:05:16 -04:00
protocol.c
net: Add sysctl to toggle early demux for tcp and udp
2017-03-24 13:17:07 -07:00
raw_diag.c
net: ipv6: add second dif to raw socket lookups
2017-08-07 11:39:22 -07:00
raw.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
route.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-09 17:04:10 -07:00
syncookies.c
net/ipv4: disable SMC TCP option with SYN Cookies
2018-03-25 20:53:54 -04:00
sysctl_net_ipv4.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
tcp_bbr.c
net-tcp_bbr: set tp->snd_ssthresh to BDP upon STARTUP exit
2018-03-16 15:07:48 -04:00
tcp_bic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_cdg.c
tcp: cdg: make struct tcp_cdg static
2017-10-16 21:24:25 +01:00
tcp_cong.c
tcp: Namespace-ify sysctl_tcp_default_congestion_control
2017-11-15 14:09:52 +09:00
tcp_cubic.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_dctcp.c
…
tcp_diag.c
net: sock: replace sk_state_load with inet_sk_state_load and remove sk_state_store
2017-12-20 14:00:25 -05:00
tcp_fastopen.c
tcp: pause Fast Open globally after third consecutive timeout
2017-12-13 15:51:12 -05:00
tcp_highspeed.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_htcp.c
tcp: fix cwnd undo in Reno and HTCP congestion controls
2017-08-06 21:25:10 -07:00
tcp_hybla.c
…
tcp_illinois.c
net/tcp/illinois: replace broken algorithm reference link
2018-02-28 12:03:47 -05:00
tcp_input.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-24 23:59:11 -04:00
tcp_ipv4.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2018-03-31 23:33:04 -04:00
tcp_lp.c
tcp: switch TCP TS option (RFC 7323) to 1ms clock
2017-05-17 16:06:01 -04:00
tcp_metrics.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
tcp_minisocks.c
crypto : chtls - CPL handler definition
2018-03-31 23:37:32 -04:00
tcp_nv.c
tcp_nv: fix potential integer overflow in tcpnv_acked
2018-01-31 10:26:30 -05:00
tcp_offload.c
gso: validate gso_type in GSO handlers
2018-01-22 16:01:30 -05:00
tcp_output.c
tcp: remove mss check in tcp_select_initial_window()
2018-04-27 14:05:36 -04:00
tcp_rate.c
tcp: invalidate rate samples during SACK reneging
2017-12-08 10:07:02 -05:00
tcp_recovery.c
tcp: evaluate packet losses upon RTT change
2017-12-08 14:14:11 -05:00
tcp_scalable.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_timer.c
tcp: purge write queue upon aborting the connection
2018-03-07 15:01:03 -05:00
tcp_ulp.c
net: add a UID to use for ULP socket assignment
2018-02-06 11:39:31 +01:00
tcp_vegas.c
tcp: fix under-evaluated ssthresh in TCP Vegas
2017-09-29 06:07:00 +01:00
tcp_vegas.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tcp_veno.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp_westwood.c
tcp: Revert "tcp: remove CA_ACK_SLOWPATH"
2017-08-30 11:20:08 -07:00
tcp_yeah.c
tcp: consolidate congestion control undo functions
2017-08-06 21:25:10 -07:00
tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2018-04-21 16:32:48 -04:00
tunnel4.c
inet: whitespace cleanup
2018-02-28 11:43:28 -05:00
udp_diag.c
net: ipv6: add second dif to udp socket lookups
2017-08-07 11:39:22 -07:00
udp_impl.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
udp_offload.c
udp: better wmem accounting on gso
2018-04-26 15:08:14 -04:00
udp_tunnel.c
net: add infrastructure to un-offload UDP tunnel port
2017-07-24 13:52:59 -07:00
udp.c
udp: add gso segment cmsg
2018-04-26 15:08:51 -04:00
udplite.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
xfrm4_input.c
xfrm: Reinject transport-mode packets through tasklet
2017-12-19 08:23:21 +01:00
xfrm4_mode_beet.c
networking: make skb_pull & friends return void pointers
2017-06-16 11:48:39 -04:00
xfrm4_mode_transport.c
xfrm: Add encapsulation header offsets while SKB is not encrypted
2017-04-14 10:07:39 +02:00
xfrm4_mode_tunnel.c
xfrm: Verify MAC header exists before overwriting eth_hdr(skb)->h_proto
2018-03-07 10:54:29 +01:00
xfrm4_output.c
net: xfrm: use skb_gso_validate_network_len() to check gso sizes
2018-03-04 17:49:17 -05:00
xfrm4_policy.c
net: Drop pernet_operations::async
2018-03-27 13:18:09 -04:00
xfrm4_protocol.c
xfrm: input: constify xfrm_input_afinfo
2017-02-09 10:22:17 +01:00
xfrm4_state.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm4_tunnel.c
…