Eric Dumazet
d26b3a7c4b
ipv4: percpu nh_rth_output cache ...
Input path is mostly run under RCU and doesnt touch dst refcnt
But output path on forwarding or UDP workloads hits
badly dst refcount, and we have lot of false sharing, for example
in ipv4_mtu() when reading rt->rt_pmtu
Using a percpu cache for nh_rth_output gives a nice performance
increase at a small cost.
24 udpflood test on my 24 cpu machine (dummy0 output device)
(each process sends 1.000.000 udp frames, 24 processes are started)
before : 5.24 s
after : 2.06 s
For reference, time on linux-3.5 : 6.60 s
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-31 14:41:39 -07:00
Bluetooth: Use tx window from config response for ack timing
2012-07-15 12:18:29 -03:00
caif-hsi: Remove use of module parameters
2012-06-25 16:44:12 -07:00
af_iucv: add shutdown for HS transport
2012-03-07 22:52:24 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-07-10 23:56:33 -07:00
ipv4: remove rt_cache_rebuild_count
2012-07-30 14:53:22 -07:00
NFC: Allow HCI driver to pre-open pipes to some gates
2012-07-09 16:42:12 -04:00
net: remove my future former mail address
2012-06-17 16:29:38 -07:00
sctp: Implement quick failover draft from tsvwg
2012-07-22 12:13:46 -07:00
ipv6: add ipv6_addr_hash() helper
2012-07-18 11:28:46 -07:00
af_unix: speedup /proc/net/unix
2012-06-08 14:27:23 -07:00
ipv4: Fix neigh lookup keying over loopback/point-to-point devices.
2012-07-20 16:06:10 -07:00
net ax25: Fix the build when sysctl support is disabled.
2012-04-23 22:14:47 -04:00
cfg80211: support TX error rate CQM
2012-07-17 11:57:23 +02:00
cipso: handle CIPSO options correctly when NetLabel is disabled
2012-06-01 14:18:29 -04:00
fq_codel: should use qdisc backlog as threshold
2012-05-16 15:30:26 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
net/dcb: Add an optional max rate attribute
2012-04-05 05:08:04 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
decnet: Use neighbours privately in dn_route struct.
2012-07-05 01:12:14 -07:00
ipv4: Restore old dst_free() behavior.
2012-07-31 14:41:38 -07:00
net: Fix warnings in dst_ops.h
2012-07-19 10:43:03 -07:00
ipv4: Elide fib_validate_source() completely when possible.
2012-06-29 01:36:36 -07:00
ipv4: Kill FLOWI_FLAG_RT_NOCACHE and associated code.
2012-07-20 13:36:54 -07:00
net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new()
2012-06-28 17:56:43 -07:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
mac802154: declare reduced mlme operations
2012-05-16 15:16:56 -04:00
net: delete all instances of special processing for token ring
2012-05-15 20:14:35 -04:00
ipv6: Add helper inet6_csk_update_pmtu().
2012-07-16 03:44:56 -07:00
ipv6: Early TCP socket demux
2012-07-26 15:50:39 -07:00
net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN)
2012-07-19 11:02:03 -07:00
ipv4: Kill FLOWI_FLAG_RT_NOCACHE and associated code.
2012-07-20 13:36:54 -07:00
ip_frag: struct inet_frags match() method returns a bool
2012-05-18 01:40:27 -04:00
ipv4: Early TCP socket demux.
2012-06-19 21:22:05 -07:00
ipv4: Restore old dst_free() behavior.
2012-07-31 14:41:38 -07:00
ipv4: Maintain redirect and PMTU info in struct rtable again.
2012-07-10 22:40:14 -07:00
ipv4: tcp: remove per net tcp_sock
2012-07-19 10:35:30 -07:00
ipv6: Store route neighbour in rt6_info struct.
2012-07-05 02:41:58 -07:00
ipv6: fix inet6_csk_xmit()
2012-07-18 08:59:58 -07:00
ipv6_tunnel: Allow receiving packets on the fallback tunnel if they pass sanity checks
2012-06-29 00:52:32 -07:00
ipv4: percpu nh_rth_output cache
2012-07-31 14:41:39 -07:00
ipvs: fix oops on NAT reply in br_nf context
2012-07-17 12:00:46 +02:00
tunnel: implement 64 bits statistics
2012-04-14 14:47:05 -04:00
ipv6: add ipv6_addr_hash() helper
2012-07-18 11:28:46 -07:00
lapb: Neaten debugging
2012-05-17 18:45:20 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
net: delete all instances of special processing for token ring
2012-05-15 20:14:35 -04:00
mac80211: add time synchronisation with BSS for assoc
2012-07-12 12:10:46 +02:00
mac802154: add wpan device-class support
2012-06-26 21:06:11 -07:00
ipv6: Export ndisc option parsing from ndisc.c
2012-07-11 23:39:11 -07:00
net: Do delayed neigh confirmation.
2012-07-05 01:03:06 -07:00
net: make sock diag per-namespace
2012-07-16 22:31:34 -07:00
net: Pass neighbours and dest address into NETEVENT_REDIRECT events.
2012-07-05 02:21:55 -07:00
netlink: Delete all NLA_PUT*() macros.
2012-04-02 04:33:45 -04:00
net: netprio_cgroup: rework update socket logic
2012-07-22 12:44:01 -07:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
ipv6: Early TCP socket demux
2012-07-26 15:50:39 -07:00
ipv6: bool/const conversions phase2
2012-05-19 01:08:16 -04:00
net_sched: red: Make minor corrections to comments
2012-04-16 23:53:11 -04:00
cfg80211: add cellular base station regulatory hint support
2012-07-17 12:16:39 +02:00
ipv4: Fix input route performance regression.
2012-07-26 15:50:39 -07:00
rtnl: allow to specify different num for rx and tx queue count
2012-07-20 11:06:59 -07:00
net: rename bond_queue_mapping to slave_dev_queue_mapping
2012-07-20 11:07:00 -07:00
get rid of ->scm_work_list
2012-07-22 23:58:00 +04:00
tcp: dont drop MTU reduction indications
2012-07-23 00:58:46 -07:00
tcp: improve latencies of timer triggered events
2012-07-20 10:59:41 -07:00
cgroup: pass struct mem_cgroup instead of struct cgroup to socket memcg
2012-04-10 10:04:07 -07:00
[PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary.
2012-06-09 14:56:12 -07:00
net/ipv6/udp: UDP encapsulation: introduce encap_rcv hook into IPv6
2012-04-28 22:21:51 -04:00
net: ipv4: Standardize prefixes for message logging
2012-03-12 17:05:21 -07:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
mac802154: monitor device support
2012-05-16 15:17:08 -04:00
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
net/ipv4: VTI support rx-path hook in xfrm4_mode_tunnel.
2012-07-18 09:36:12 -07:00
d26b3a7c4b