Eric Dumazet 4b272750db udp: add busylocks in RX path ... Idea of busylocks is to let producers grab an extra spinlock to relieve pressure on the receive_queue spinlock shared by consumer. This behavior is requested only once socket receive queue is above half occupancy. Under flood, this means that only one producer can be in line trying to acquire the receive_queue spinlock. These busylock can be allocated on a per cpu manner, instead of a per socket one (that would consume a cache line per socket) This patch considerably improves UDP behavior under stress, depending on number of NIC RX queues and/or RPS spread. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-12-09 22:12:21 -05:00
..
6lowpan	6lowpan: ndisc: no overreact if no short address is available	2016-09-19 20:19:34 +02:00
9p	IB/core: add support to create a unsafe global rkey to ib_create_pd	2016-09-23 13:47:44 -04:00
802	net: use core MTU range checking in misc drivers	2016-10-20 14:51:10 -04:00
8021q	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
appletalk	appletalk: use IS_ENABLED() instead of checking for built-in or module	2016-09-10 21:19:10 -07:00
atm	net: remove MTU limits on a few ether_setup callers	2016-10-21 13:57:50 -04:00
ax25
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-06 21:33:19 -05:00
bluetooth	Bluetooth: SMP: Add support for H7 crypto function and CT2 auth flag	2016-12-08 07:50:24 +01:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2016-12-07 19:16:46 -05:00
caif	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-06 21:33:19 -05:00
can	can: bcm: fix support for CAN FD frames	2016-11-23 15:22:18 +01:00
ceph	libceph: initialize last_linger_id with a large integer	2016-11-10 20:13:08 +01:00
core	bpf: xdp: Allow head adjustment in XDP prog	2016-12-08 14:25:13 -05:00
dcb	net: dcb: set error code on failures	2016-12-03 23:54:25 -05:00
dccp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
decnet	net: fix sleeping for sk_wait_event()	2016-11-14 13:17:21 -05:00
dns_resolver
dsa	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
ethernet	net: make default TX queue length a defined constant	2016-11-07 20:15:55 -05:00
hsr	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-10-30 12:42:58 -04:00
ieee802154	ieee802154: check device type	2016-11-30 12:33:07 +01:00
ipv4	udp: add busylocks in RX path	2016-12-09 22:12:21 -05:00
ipv6	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2016-12-07 19:16:46 -05:00
ipx
irda	genetlink: mark families as __ro_after_init	2016-10-27 16:16:09 -04:00
iucv	Subject: [PATCH] af_iucv: drop skbs rejected by filter	2016-10-12 01:56:04 -04:00
kcm	Merge branch 'work.splice_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-07 15:36:58 -07:00
key	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
l3mdev	net: ipv6: Remove l3mdev_get_saddr6	2016-09-10 23:12:53 -07:00
lapb
llc	net: fix sleeping for sk_wait_event()	2016-11-14 13:17:21 -05:00
mac80211	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-11-22 13:27:16 -05:00
mac802154	mac802154: use rate limited warnings for malformed frames	2016-09-19 20:19:34 +02:00
mpls	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-06 21:33:19 -05:00
ncsi	net/ncsi: Improve HNCDSC AEN handler	2016-10-20 11:23:08 -04:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2016-12-07 19:16:46 -05:00
netlabel	genetlink: mark families as __ro_after_init	2016-10-27 16:16:09 -04:00
netlink	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-06 21:33:19 -05:00
netrom
nfc	genetlink: mark families as __ro_after_init	2016-10-27 16:16:09 -04:00
openvswitch	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
phonet	netns: make struct pernet_operations::id unsigned int	2016-11-18 10:59:15 -05:00
qrtr
rds	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
rfkill
rose	rose: limit sk_filter trim to payload	2016-07-13 11:53:40 -07:00
rxrpc	udp: do fwd memory scheduling on dequeue	2016-11-07 13:24:41 -05:00
sched	net/sched: cls_flower: Support matching on ICMP type and code	2016-12-08 11:47:08 -05:00
sctp	sctp: use new rhlist interface on sctp transport rhashtable	2016-11-16 23:22:17 -05:00
strparser	strparser: Propagate correct error code in strp_recv()	2016-10-12 01:51:49 -04:00
sunrpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-11-22 13:27:16 -05:00
switchdev	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-10-30 12:42:58 -04:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-11-22 13:27:16 -05:00
vmw_vsock	VSOCK: add loopback to virtio_transport	2016-11-24 11:53:15 -05:00
wimax	genetlink: mark families as __ro_after_init	2016-10-27 16:16:09 -04:00
wireless	wireless-drivers-next patches for 4.10	2016-11-27 20:26:59 -05:00
x25	net: x25: remove null checks on arrays calling_ae and called_ae	2016-09-09 18:13:30 -07:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-12-03 12:29:53 -05:00
compat.c
Kconfig	bpf: BPF for lightweight tunnel infrastructure	2016-12-02 10:51:49 -05:00
Makefile	strparser: Stream parser for messages	2016-08-17 19:36:23 -04:00
socket.c	net: socket: preferred __aligned(size) for control buffer	2016-12-08 18:20:46 -05:00
sysctl_net.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2016-10-06 09:52:23 -07:00