linux/net
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
..
6lowpan License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
9p net/9p/client.c: fix potential refcnt problem of trans module 2018-04-05 21:36:23 -07:00
802 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
8021q vlan: also check phy_driver ts_info for vlan's real device 2018-04-01 20:53:50 -04:00
appletalk net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
atm net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
ax25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2018-04-08 17:19:15 -04:00
bpf bpf: making bpf_prog_test run aware of possible data_end ptr change 2018-04-18 23:34:16 +02:00
bridge bridge: use hlist_entry_safe 2018-04-27 13:20:48 -04:00
caif net: caif: fix spelling mistake "UKNOWN" -> "UNKNOWN" 2018-04-19 13:37:10 -04:00
can net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ceph The big ticket items are: 2018-04-10 12:25:30 -07:00
core net: Fix coccinelle warning 2018-04-27 13:53:14 -04:00
dcb
dccp dccp: initialize ireq->ir_mark 2018-04-07 22:32:31 -04:00
decnet net: fib_rules: add extack support 2018-04-23 10:21:24 -04:00
dns_resolver KEYS: DNS: limit the length of option strings 2018-04-17 15:17:41 -04:00
dsa net: dsa: Allow providing PHY statistics from CPU port 2018-04-27 11:53:03 -04:00
ethernet
hsr
ieee802154 inet: frags: fix ip6frag_low_thresh boundary 2018-04-04 12:04:59 -04:00
ife net: sched: ife: check on metadata length 2018-04-22 21:12:00 -04:00
ipv4 tcp: remove mss check in tcp_select_initial_window() 2018-04-27 14:05:36 -04:00
ipv6 udp: add gso segment cmsg 2018-04-26 15:08:51 -04:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
kcm net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
key net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
l2tp l2tp: consistent reference counting in procfs and debufs 2018-04-27 11:06:35 -04:00
l3mdev
lapb treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts 2017-11-21 16:35:54 -08:00
llc llc: fix NULL pointer deref for SOCK_ZAPPED 2018-04-22 14:56:22 -04:00
mac80211 We have a fair number of patches, but many of them are from the 2018-03-29 16:23:26 -04:00
mac802154 net/mac802154: disambiguate mac80215 vs mac802154 trace events 2018-03-28 22:55:18 +02:00
mpls net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
ncsi net/ncsi: Refactor MAC, VLAN filters 2018-04-17 13:50:58 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-24 23:59:11 -04:00
netlabel netlabel: If PF_INET6, check sk_buff ip header version 2018-02-14 14:01:41 -05:00
netlink netlink: fix uninit-value in netlink_sendmsg 2018-04-07 22:32:31 -04:00
netrom net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-02-19 18:46:11 -05:00
nsh openvswitch: enable NSH support 2017-11-08 16:12:33 +09:00
openvswitch ovs: Remove rtnl_lock() from ovs_exit_net() 2018-03-29 13:47:54 -04:00
packet packet: fix bitfield update race 2018-04-24 13:17:08 -04:00
phonet net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
psample MAINTAINERS: Update Yotam's E-mail 2017-11-01 12:19:03 +09:00
qrtr net: qrtr: add MODULE_ALIAS_NETPROTO macro 2018-04-17 09:58:00 -04:00
rds rds: ib: Fix missing call to rds_ib_dev_put in rds_ib_setup_qp 2018-04-25 14:34:08 -04:00
rfkill vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
rose net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
rxrpc rxrpc: Fix undefined packet handling 2018-04-04 11:04:08 -04:00
sched net: sched: ife: handle malformed tlv length 2018-04-22 21:12:00 -04:00
sctp sctp: remove the unused sctp_assoc_is_match function 2018-04-25 14:09:23 -04:00
smc net/smc: handle sockopt TCP_DEFER_ACCEPT 2018-04-27 14:02:52 -04:00
strparser strparser: Do not call mod_delayed_work with a timeout of LONG_MAX 2018-04-22 21:09:16 -04:00
sunrpc rpc_pipefs: fix double-dput() 2018-04-15 23:49:27 -04:00
switchdev net: bridge: Add/del switchdev object on host join/leave 2017-11-10 13:41:40 +09:00
tipc tipc: introduce ioctl for fetching node identity 2018-04-27 11:05:41 -04:00
tls net/tls: remove redundant second null check on sgout 2018-04-24 16:02:10 -04:00
unix af_unix: remove redundant lockdep class 2018-04-04 11:13:40 -04:00
vmw_vsock VSOCK: make af_vsock.ko removable again 2018-04-17 09:44:30 -04:00
wimax License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2018-03-31 23:33:04 -04:00
x25 net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-04-01 19:49:34 -04:00
compat.c net: socket: add __compat_sys_...msg() helpers; remove in-kernel calls to compat syscalls 2018-04-02 20:15:20 +02:00
Kconfig page_pool: refurbish version of page_pool code 2018-04-17 10:50:29 -04:00
Makefile ipx: move Novell IPX protocol support into staging 2017-11-28 13:55:00 +01:00
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2018-04-05 11:56:35 -07:00
sysctl_net.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00