Eric Dumazet 1402d36601 tcp: introduce tcp_try_coalesce ... commit c8628155ec (tcp: reduce out_of_order memory use) took care of coalescing tcp segments provided by legacy devices (linear skbs) We extend this idea to fragged skbs, as their truesize can be heavy. ixgbe for example uses 256+1024+PAGE_SIZE/2 = 3328 bytes per segment. Use this coalescing strategy for receive queue too. This contributes to reduce number of tcp collapses, at minimal cost, and reduces memory overhead and packets drops. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2012-04-23 22:42:49 -04:00
..
netfilter	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
af_inet.c	sock: Introduce named constants for sk_reuse	2012-04-21 15:52:25 -04:00
ah4.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
arp.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
cipso_ipv4.c	ipv4: Convert call_rcu() to kfree_rcu(), drop opt_kfree_rcu()	2012-02-21 09:03:31 -08:00
datagram.c
devinet.c	net ipv4: Convert devinet to use register_net_sysctl	2012-04-20 21:22:30 -04:00
esp4.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
fib_frontend.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
fib_lookup.h
fib_rules.c	ipv4: Stop using NLA_PUT*().	2012-04-02 04:33:43 -04:00
fib_semantics.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
fib_trie.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
gre.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
icmp.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
igmp.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
inet_connection_sock.c	sock: Introduce named constants for sk_reuse	2012-04-21 15:52:25 -04:00
inet_diag.c	netlink: add netlink_dump_control structure for netlink_dump_start()	2012-02-26 14:10:06 -05:00
inet_fragment.c
inet_hashtables.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
inet_lro.c
inet_timewait_sock.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
inetpeer.c	route: Remove redirect_genid	2012-03-08 00:30:32 -08:00
ip_forward.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ip_fragment.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
ip_gre.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ip_input.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_options.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ip_output.c	Remove all #inclusions of asm/system.h	2012-03-28 18:30:03 +01:00
ip_sockglue.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ipcomp.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
ipconfig.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
ipip.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
ipmr.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2012-04-10 14:30:45 -04:00
Kconfig	net: Fix build regression when INET_UDP_DIAG=y and IPV6=m	2012-02-07 13:35:28 -05:00
Makefile	tcp memory pressure controls	2011-12-12 19:04:10 -05:00
netfilter.c	net: Delete all remaining instances of ctl_path	2012-04-20 21:22:30 -04:00
ping.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
proc.c	tcp: reduce out_of_order memory use	2012-03-19 16:53:08 -04:00
protocol.c
raw.c	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
route.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
syncookies.c	tcp: fix syncookie regression	2012-03-11 15:52:12 -07:00
sysctl_net_ipv4.c	net: Delete all remaining instances of ctl_path	2012-04-20 21:22:30 -04:00
tcp.c	tcp: move duplicate code from tcp_v4_init_sock()/tcp_v6_init_sock()	2012-04-21 16:36:42 -04:00
tcp_bic.c	tcp: fix undo after RTO for BIC	2012-01-20 14:17:26 -05:00
tcp_cong.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_cubic.c	tcp: fix undo after RTO for CUBIC	2012-01-20 14:17:26 -05:00
tcp_diag.c	inet_diag: Rename inet_diag_req into inet_diag_req_v2	2012-01-11 12:56:06 -08:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: introduce tcp_try_coalesce	2012-04-23 22:42:49 -04:00
tcp_ipv4.c	tcp: sk_add_backlog() is too agressive for TCP	2012-04-23 22:28:28 -04:00
tcp_lp.c
tcp_memcontrol.c	Merge branch 'for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2012-03-20 18:11:21 -07:00
tcp_minisocks.c	tcp: md5: rcu conversion	2012-01-31 12:14:00 -05:00
tcp_output.c	tcp: Repair socket queues	2012-04-21 15:52:25 -04:00
tcp_probe.c	net: cleanup unsigned to unsigned int	2012-04-15 12:44:40 -04:00
tcp_scalable.c
tcp_timer.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tunnel4.c	net: Convert printks to pr_<level>	2012-03-11 23:42:51 -07:00
udp.c	net: add a limit parameter to sk_add_backlog()	2012-04-23 22:28:28 -04:00
udp_diag.c	net: kill duplicate included header	2012-01-17 10:31:12 -05:00
udp_impl.h	ipv4: fix checkpatch errors	2012-04-15 12:37:19 -04:00
udplite.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00
xfrm4_input.c
xfrm4_mode_beet.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c	ipsec: be careful of non existing mac headers	2012-02-23 16:50:45 -05:00
xfrm4_output.c
xfrm4_policy.c	net: Convert all sysctl registrations to register_net_sysctl	2012-04-20 21:22:30 -04:00
xfrm4_state.c
xfrm4_tunnel.c	net: ipv4: Standardize prefixes for message logging	2012-03-12 17:05:21 -07:00