Shawn Bohrer 421b3885bf udp: ipv4: Add udp early demux ... The removal of the routing cache introduced a performance regression for some UDP workloads since a dst lookup must be done for each packet. This change caches the dst per socket in a similar manner to what we do for TCP by implementing early_demux. For UDP multicast we can only cache the dst if there is only one receiving socket on the host. Since caching only works when there is one receiving socket we do the multicast socket lookup using RCU. For UDP unicast we only demux sockets with an exact match in order to not break forwarding setups. Additionally since the hash chains may be long we only check the first socket to see if it is a match and not waste extra time searching the whole chain when we might not find an exact match. Benchmark results from a netperf UDP_RR test: Before 87961.22 transactions/s After 89789.68 transactions/s Benchmark results from a fio 1 byte UDP multicast pingpong test (Multicast one way unicast response): Before 12.97us RTT After 12.63us RTT Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-10-08 16:27:33 -04:00
..
9p	for-linus-3.12-merge minor 9p fixes and tweaks for 3.12 merge window	2013-09-11 12:34:13 -07:00
802	mrp: add periodictimer to allow retries when packets get lost	2013-09-23 16:53:52 -04:00
8021q	vlan: unlink the upper neighbour before unregistering	2013-09-26 16:02:07 -04:00
appletalk	net: proc_fs: trivial: print UIDs as unsigned int	2013-08-15 14:37:46 -07:00
atm	net: always pass struct netdev_notifier_info to netdevice notifiers	2013-05-28 21:58:54 -07:00
ax25	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
batman-adv	batman-adv: set the TAG flag for the vid passed to BLA	2013-09-17 21:15:16 +02:00
bluetooth	Bluetooth: Only one command per L2CAP LE signalling is supported	2013-10-03 16:09:59 +03:00
bridge	net:drivers/net: Miscellaneous conversions to ETH_ALEN	2013-10-02 17:04:45 -04:00
caif	caif: Add missing braces to multiline if in cfctrl_linkup_request	2013-09-05 14:31:02 -04:00
can	can: gw: add a per rule limitation of frame hops	2013-08-29 22:58:24 +02:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2013-09-19 12:50:37 -05:00
core	net: Separate the close_list and the unreg_list v2	2013-10-07 15:23:14 -04:00
dcb
dccp	net:dccp: do not report ICMP redirects to user space	2013-09-18 12:33:44 -04:00
decnet	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
dns_resolver	net: strict_strtoul is obsolete, use kstrtoul instead	2013-07-12 16:09:14 -07:00
dsa	net: dsa: inherit addr_assign_type along with dev_addr	2013-09-03 20:57:49 -04:00
ethernet	ethernet: use likely() for common Ethernet encap	2013-09-30 21:52:53 -07:00
ieee802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
ipv4	udp: ipv4: Add udp early demux	2013-10-08 16:27:33 -04:00
ipv6	udp: Only allow busy read/poll on connected sockets	2013-10-08 16:27:33 -04:00
ipx	net: proc_fs: trivial: print UIDs as unsigned int	2013-08-15 14:37:46 -07:00
irda	net/irda: fixed style issues in irttp	2013-07-19 17:34:40 -07:00
iucv	net: delete __cpuinit usage from all net files	2013-07-14 19:36:58 -04:00
key	xfrm: Remove rebundant address family checking	2013-08-07 10:12:58 +02:00
l2tp	l2tp: make datapath resilient to packet loss when sequence numbers enabled	2013-07-02 16:33:25 -07:00
lapb	net/lapb: re-send packets on timeout	2013-09-23 16:52:45 -04:00
llc	llc: Use normal etherdevice.h tests	2013-09-03 22:34:47 -04:00
mac80211	net:drivers/net: Miscellaneous conversions to ETH_ALEN	2013-10-02 17:04:45 -04:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-04-30 03:55:20 -04:00
mpls	MPLS: Add limited GSO support	2013-05-27 22:50:59 -07:00
netfilter	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2013-10-04 13:26:38 -04:00
netlabel	netlabel: use domain based selectors when address based selectors are not available	2013-08-02 16:57:01 -07:00
netlink	net: netlink: filter particular protocols from analyzers	2013-09-06 14:43:48 -04:00
netrom	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
nfc	NFC: Update secure element state	2013-08-14 01:13:40 +02:00
openvswitch	net ipv4: Convert ipv4.ip_local_port_range to be per netns v3	2013-09-30 21:59:38 -07:00
packet	net: packet: use reciprocal_divide in fanout_demux_hash	2013-08-29 16:43:29 -04:00
phonet	net: proc_fs: trivial: print UIDs as unsigned int	2013-08-15 14:37:46 -07:00
rds	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
rfkill	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
rose	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
rxrpc
sched	net_sched: increment drop counters in qdisc_tree_decrease_qlen()	2013-10-08 16:27:33 -04:00
sctp	net ipv4: Convert ipv4.ip_local_port_range to be per netns v3	2013-09-30 21:59:38 -07:00
sunrpc	RPCSEC_GSS: fix crash on destroying gss auth	2013-09-18 10:18:44 -05:00
tipc	tipc: set sk_err correctly when connection fails	2013-08-30 16:06:57 -04:00
unix	af_unix: fix bug on large send()	2013-08-11 22:02:36 -07:00
vmw_vsock	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-08-16 15:37:26 -07:00
wimax
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-09-05 14:54:29 -07:00
x25	x25: add a sanity check parsing X.25 facilities	2013-09-04 00:27:27 -04:00
xfrm	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2013-09-30 15:24:57 -04:00
compat.c	net: Unbreak compat_sys_{send,recv}msg	2013-06-06 11:52:14 -07:00
Kconfig	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
Makefile	MPLS: Add limited GSO support	2013-05-27 22:50:59 -07:00
nonet.c
socket.c	Merge git://git.kvack.org/~bcrl/aio-next	2013-09-13 10:55:58 -07:00
sysctl_net.c