Wei Wang 0da4af00b2 ipv6: only update __use and lastusetime once per jiffy at most ... In order to not dirty the cacheline too often, we try to only update dst->__use and dst->lastusetime at most once per jiffy. As dst->lastusetime is only used by ipv6 garbage collector, it should be good enough time resolution. And __use is only used in ipv6_route_seq_show() to show how many times a dst has been used. And as __use is not atomic_t right now, it does not show the precise number of usage times anyway. So we think it should be OK to only update it at most once per jiffy. According to my latest syn flood test on a machine with intel Xeon 6th gen processor and 2 10G mlx nics bonded together, each with 8 rx queues on 2 NUMA nodes: With this patch, the packet process rate increases from ~3.49Mpps to ~3.75Mpps with a 7% increase rate. Note: dst_use() is being renamed to dst_hold_and_use() to better specify the purpose of the function. Signed-off-by: Wei Wang <weiwan@google.com> Acked-by: Eric Dumazet <edumazet@googl.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-10-16 21:08:30 +01:00
..
9p	9p: Implement show_options	2017-07-11 06:08:58 -04:00
bluetooth	Bluetooth: make baswap src const	2017-09-01 22:49:47 +02:00
caif
iucv
netfilter	netfilter: nat: Revert "netfilter: nat: convert nat bysrc hash to rhashtable"	2017-09-08 18:55:50 +02:00
netns	ipv4: Namespaceify tcp_fastopen_blackhole_timeout knob	2017-10-01 17:55:54 -07:00
nfc
phonet	net: phonet: mark phonet_protocol as const	2017-10-07 23:15:08 +01:00
sctp	sctp: introduce round robin stream scheduler	2017-10-03 16:27:29 -07:00
tc_act	sched: act: ife: update parameters via rcu handling	2017-10-12 22:23:03 -07:00
6lowpan.h
act_api.h	net: sched: introduce per-egress action device callbacks	2017-10-11 20:15:43 -07:00
addrconf.h	net: Convert int functions to bool	2017-09-18 11:40:03 -07:00
af_ieee802154.h
af_rxrpc.h	rxrpc: Allow failed client calls to be retried	2017-08-29 10:55:20 +01:00
af_unix.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-07-21 03:38:43 +01:00
af_vsock.h	VSOCK: use TCP state constants for sk_state	2017-10-05 18:44:17 -07:00
ah.h
arp.h
atmclip.h
ax25.h
ax88796.h
bond_3ad.h
bond_alb.h
bond_options.h
bonding.h	net: Add extack to ndo_add_slave	2017-10-04 21:39:33 -07:00
busy_poll.h	net: fix compilation when busy poll is not enabled	2017-08-11 14:59:24 -07:00
calipso.h
cfg80211-wext.h
cfg80211.h	cfg80211/nl80211: add a port authorized event	2017-10-02 14:08:27 +02:00
cfg802154.h
checksum.h
cipso_ipv4.h
cls_cgroup.h
codel_impl.h
codel_qdisc.h
codel.h
compat.h
datalink.h
dcbevent.h
dcbnl.h
devlink.h	devlink: Add IPv6 header for dpipe	2017-08-31 14:42:19 -07:00
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dn.h
dsa.h	net: dsa: remove .set_addr	2017-10-14 18:30:06 -07:00
dsfield.h
dst_cache.h
dst_metadata.h	bpf: don't rely on the verifier lock for metadata_dst allocation	2017-10-10 12:30:16 -07:00
dst_ops.h
dst.h	ipv6: only update __use and lastusetime once per jiffy at most	2017-10-16 21:08:30 +01:00
erspan.h	gre: introduce native tunnel support for ERSPAN	2017-08-22 14:29:30 -07:00
esp.h
ethoc.h
fib_notifier.h	fib: notifier: Add VIF add and delete event types	2017-09-27 11:33:27 -07:00
fib_rules.h	net: fib_rules: Implement notification logic in core	2017-08-03 15:35:59 -07:00
firewire.h
flow_dissector.h	flow_dissector: Cleanup control flow	2017-09-05 11:40:08 -07:00
flow.h	net: Extend struct flowi6 with multipath hash	2017-08-24 18:21:17 -07:00
fou.h
fq_impl.h	fq: support filtering a given tin	2017-10-11 09:49:34 +02:00
fq.h	fq: support filtering a given tin	2017-10-11 09:49:34 +02:00
garp.h
gen_stats.h
genetlink.h
geneve.h
gre.h
gro_cells.h
gtp.h
gue.h
hwbm.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h
if_inet6.h
ife.h
ila.h
inet_common.h
inet_connection_sock.h
inet_ecn.h	net-ipv6: remove unused IP6_ECN_clear() function	2017-10-01 17:55:54 -07:00
inet_frag.h	Revert "net: fix percpu memory leaks"	2017-09-03 11:01:05 -07:00
inet_hashtables.h	net: ipv4: add second dif to inet socket lookups	2017-08-07 11:39:21 -07:00
inet_sock.h
inet_timewait_sock.h
inet6_connection_sock.h
inet6_hashtables.h	net: ipv6: add second dif to inet6 socket lookups	2017-08-07 11:39:22 -07:00
inetpeer.h	inetpeer: remove AVL implementation in favor of RB tree	2017-07-17 08:59:01 -07:00
ip_fib.h	net: ipv4: remove fib_weight	2017-09-29 06:19:32 +01:00
ip_tunnels.h	ipv4: speedup ipv6 tunnels dismantle	2017-09-19 16:32:24 -07:00
ip_vs.h
ip.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-08-21 17:06:42 -07:00
ip6_checksum.h
ip6_fib.h	ipv6: take care of rt6_stats	2017-10-07 21:22:58 +01:00
ip6_route.h	ipv6: prepare fib6_age() for exception table	2017-10-07 21:22:57 +01:00
ip6_tunnel.h
ipcomp.h
ipconfig.h
ipv6.h	net/ipv6: Convert icmpv6_push_pending_frames to void	2017-10-06 09:52:31 -07:00
ipx.h
iw_handler.h
kcm.h
l3mdev.h
lapb.h
lib80211.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h
lwtunnel.h
mac80211.h	mac80211: add documentation to ieee80211_rx_ba_offl()	2017-09-21 11:42:00 +02:00
mac802154.h
mip6.h
mld.h
mpls_iptunnel.h
mpls.h
mrp.h
ncsi.h	net/ncsi: fix ncsi_vlan_rx_{add,kill}_vid references	2017-09-05 09:11:45 -07:00
ndisc.h
neighbour.h	neigh: make strucrt neigh_table::entry_size unsigned int	2017-09-25 20:36:17 -07:00
net_namespace.h	net: core: Make the FIB notification chain generic	2017-08-03 15:35:59 -07:00
net_ratelimit.h
netevent.h
netlabel.h
netlink.h	netlink: fix nla_put_{u8,u16,u32} for KASAN	2017-09-25 20:18:27 -07:00
netprio_cgroup.h
netrom.h
nexthop.h
nl802154.h
nsh.h	net: add NSH header structures and helpers	2017-08-29 15:16:52 -07:00
p8022.h
ping.h
pkt_cls.h	net: sched: teach tcf_bind/unbind_filter to use block->q	2017-10-16 21:00:40 +01:00
pkt_sched.h	net: sched: store net pointer in block and introduce qdisc_net helper	2017-10-16 21:00:40 +01:00
pptp.h
protocol.h	IPv4: early demux can return an error code	2017-10-01 03:55:47 +01:00
psample.h
psnap.h
raw.h	net: ipv4: add second dif to raw socket lookups	2017-08-07 11:39:21 -07:00
rawv6.h	net: ipv6: add second dif to raw socket lookups	2017-08-07 11:39:22 -07:00
red.h
regulatory.h
request_sock.h
rose.h
route.h	udp: perform source validation for mcast early demux	2017-10-01 03:55:47 +01:00
rtnetlink.h	rtnetlink: remove __rtnl_af_unregister	2017-10-04 10:33:59 -07:00
sch_generic.h	net: sched: use tcf_block_q helper to get q pointer for sch_tree_lock	2017-10-16 21:00:41 +01:00
scm.h
secure_seq.h
seg6_hmac.h
seg6.h	ipv6: sr: add support for ip4ip6 encapsulation	2017-08-25 17:10:23 -07:00
slhc_vj.h
smc.h
snmp.h
sock_reuseport.h
sock.h	tcp: implement rb-tree based retransmit queue	2017-10-07 00:28:54 +01:00
Space.h
stp.h
strparser.h	strparser: initialize all callbacks	2017-08-24 21:57:50 -07:00
switchdev.h	net: bridge: Notify on bridge device mrouter state changes	2017-10-09 10:18:11 -07:00
tcp_states.h
tcp.h	tcp: remove obsolete helpers	2017-10-12 09:47:08 -07:00
timewait_sock.h
tls.h
transp_v6.h
tso.h	net: define the TSO header size in net/tso.h	2017-08-23 20:42:09 -07:00
tun_proto.h	vxlan: factor out VXLAN-GPE next protocol	2017-08-29 15:16:52 -07:00
udp_tunnel.h	net: add infrastructure to un-offload UDP tunnel port	2017-07-24 13:52:59 -07:00
udp.h	IPv4: early demux can return an error code	2017-10-01 03:55:47 +01:00
udplite.h
vsock_addr.h
vxlan.h	vxlan: factor out VXLAN-GPE next protocol	2017-08-29 15:16:52 -07:00
wext.h
wimax.h
x25.h
x25device.h
xfrm.h	xfrm: Add support for network devices capable of removing the ESP trailer	2017-08-31 09:04:03 +02:00