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
..
6lowpan
9p	net/9p: switch p9_fd_read to kernel_write	2017-09-04 19:05:16 -04:00
802	net: introduce __skb_put_[zero, data, u8]	2017-06-20 13:30:14 -04:00
8021q	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-10-05 18:19:22 -07:00
appletalk	networking: make skb_push & __skb_push return void pointers	2017-06-16 11:48:40 -04:00
atm	net: atm: make atmdev_ops const	2017-08-09 22:43:50 -07:00
ax25	net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t	2017-07-04 22:35:19 +01:00
batman-adv	This cleanup patchset includes the following patches:	2017-10-06 10:12:52 -07:00
bluetooth	Revert "Bluetooth: Add option for disabling legacy ioctl interfaces"	2017-09-28 13:20:32 -07:00
bpf	bpf: add meta pointer for direct access	2017-09-26 13:36:44 -07:00
bridge	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-10-09 20:11:09 -07:00
caif	net: convert sock.sk_wmem_alloc from atomic_t to refcount_t	2017-07-01 07:39:08 -07:00
can	rtnetlink: make rtnl_register accept a flags parameter	2017-08-09 16:57:38 -07:00
ceph	libceph: don't allow bidirectional swap of pg-upmap-items	2017-09-19 20:34:29 +02:00
core	tcp: add a tracepoint for tcp retransmission	2017-10-14 18:45:15 -07:00
dcb	rtnetlink: make rtnl_register accept a flags parameter	2017-08-09 16:57:38 -07:00
dccp	net: dccp: Add handling of IPV6_PKTOPTIONS to dccp_v6_do_rcv()	2017-08-31 11:43:47 -07:00
decnet	ipv6: only update __use and lastusetime once per jiffy at most	2017-10-16 21:08:30 +01:00
dns_resolver
dsa	net: dsa: remove .set_addr	2017-10-14 18:30:06 -07:00
ethernet	networking: make skb_push & __skb_push return void pointers	2017-06-16 11:48:40 -04:00
hsr	net/hsr: Check skb_put_padto() return value	2017-08-22 13:40:23 -07:00
ieee802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-09-05 20:03:35 -07:00
ife
ipv4	tcp: add a tracepoint for tcp retransmission	2017-10-14 18:45:15 -07:00
ipv6	ipv6: check fn before doing FIB6_SUBTREE(fn)	2017-10-16 21:06:12 +01:00
ipx	net, ipx: convert ipx_route.refcnt from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
iucv	iucv: Convert sk_wmem_alloc accesses to refcount_t.	2017-07-03 02:31:22 -07:00
kcm	kcm: Remove redundant unlikely()	2017-09-26 09:54:06 -07:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-08-15 20:23:23 -07:00
l2tp	l2tp: fix l2tp_eth module loading	2017-10-01 22:35:07 -07:00
l3mdev
lapb	net, lapb: convert lapb_cb.refcnt from atomic_t to refcount_t	2017-07-04 22:35:16 +01:00
llc	net, llc: convert llc_sap.refcnt from atomic_t to refcount_t	2017-07-04 22:35:15 +01:00
mac80211	mac80211: don't track HT capability changes	2017-10-13 14:29:02 +02:00
mac802154	mac802154: Fix MAC header and payload encrypted	2017-09-20 13:37:16 +02:00
mpls	ip_tunnel: fix building with NET_IP_TUNNEL=m	2017-10-12 12:21:11 -07:00
ncsi	net/ncsi: fix ncsi_vlan_rx_{add,kill}_vid references	2017-09-05 09:11:45 -07:00
netfilter	netfilter: xt_bpf: Fix XT_BPF_MODE_FD_PINNED mode of 'xt_bpf_info_v1'	2017-10-09 15:18:04 +02:00
netlabel
netlink	netlink: do not set cb_running if dump's start() errs	2017-10-09 10:27:49 -07:00
netrom	net, netrom: convert nr_node.refcount from atomic_t to refcount_t	2017-07-04 22:35:17 +01:00
nfc	net: nfc: llcp_core: use setup_timer() helper.	2017-09-25 13:19:20 -07:00
nsh	nsh: add GSO support	2017-08-29 15:16:52 -07:00
openvswitch	openvswitch: add ct_clear action	2017-10-10 16:38:34 -07:00
packet	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-10-05 18:19:22 -07:00
phonet	net: phonet: mark phonet_protocol as const	2017-10-07 23:15:08 +01:00
psample	networking: make skb_put & friends return void pointers	2017-06-16 11:48:39 -04:00
qrtr	net: qrtr: Support decoding incoming v2 packets	2017-10-11 15:28:39 -07:00
rds	RDS: IB: Initialize max_items based on underlying device attributes	2017-10-05 21:16:33 -07:00
rfkill	net: rfkill: gpio: Switch to devm_acpi_dev_add_driver_gpios()	2017-06-13 11:07:51 +02:00
rose
rxrpc	rxrpc: Make service connection lookup always check for retry	2017-09-05 14:39:17 -07:00
sched	net: sched: propagate q and parent from caller down to tcf_fill_node	2017-10-16 21:00:41 +01:00
sctp	sctp: make array sctp_sched_ops static	2017-10-11 20:18:25 -07:00
smc	net/smc: dev_put for netdev after usage of ib_query_gid()	2017-10-12 12:20:27 -07:00
strparser	strparser: initialize all callbacks	2017-08-24 21:57:50 -07:00
sunrpc	sunrpc: remove redundant initialization of sock	2017-10-01 18:51:30 -04:00
switchdev	net: switchdev: Remove bridge bypass support from switchdev	2017-08-07 14:48:48 -07:00
tipc	tipc: add multipoint-to-point flow control	2017-10-13 08:46:01 -07:00
tls	tls: make tls_sw_free_resources static	2017-09-14 09:55:21 -07:00
unix	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-08-21 17:06:42 -07:00
vmw_vsock	VSOCK: add sock_diag interface	2017-10-05 18:44:17 -07:00
wimax
wireless	Three fixes for the recently added new code:	2017-10-14 18:36:46 -07:00
x25	X25: constify null_x25_address	2017-08-03 09:13:51 -07:00
xfrm	xfrm: don't call xfrm_policy_cache_flush under xfrm_state_lock	2017-09-28 09:39:05 +02:00
compat.c	net: compat: assert the size of cmsg copied in is as expected	2017-09-20 15:36:18 -07:00
Kconfig	net: Remove CONFIG_NETFILTER_DEBUG and _ASSERT() macros.	2017-09-04 13:25:20 +02:00
Makefile	nsh: add GSO support	2017-08-29 15:16:52 -07:00
socket.c	net: fixes for skb_send_sock	2017-08-16 11:27:52 -07:00
sysctl_net.c