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28d6427109
linux-next/net
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Eric Dumazet 28d6427109 net: attempt high order allocations in sock_alloc_send_pskb() 
Adding paged frags skbs to af_unix sockets introduced a performance
regression on large sends because of additional page allocations, even
if each skb could carry at least 100% more payload than before.

We can instruct sock_alloc_send_pskb() to attempt high order
allocations.

Most of the time, it does a single page allocation instead of 8.

I added an additional parameter to sock_alloc_send_pskb() to
let other users to opt-in for this new feature on followup patches.

Tested:

Before patch :

$ netperf -t STREAM_STREAM
STREAM STREAM TEST
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 2304  212992  212992    10.00    46861.15

After patch :

$ netperf -t STREAM_STREAM
STREAM STREAM TEST
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 2304  212992  212992    10.00    57981.11

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-10 01:16:44 -07:00
..
9p 9p: client: remove unused code and any reference to "cancelled" function 2013-07-30 15:54:28 -07:00
802 net/802/mrp: fix lockdep splat 2013-05-14 13:02:30 -07:00
8021q vlan: cleanup the usage of vlan_dev_priv(dev) 2013-08-03 10:32:25 -07:00
appletalk net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -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 net: Unmap fragment page once iterator is done 2013-06-24 01:46:01 -07:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2013-07-31 15:11:50 -04:00
bridge bridge: fix rcu check warning in multicast port group 2013-08-04 18:41:52 -07:00
caif net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
can net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
ceph net: add sk_stream_is_writeable() helper 2013-07-24 17:54:48 -07:00
core net: attempt high order allocations in sock_alloc_send_pskb() 2013-08-10 01:16:44 -07:00
dcb rtnetlink: Remove passing of attributes into rtnl_doit functions 2013-03-22 10:31:16 -04:00
dccp net: add sk_stream_is_writeable() helper 2013-07-24 17:54:48 -07:00
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 dsa: fix freeing of sparse port allocation 2013-03-25 12:23:41 -04:00
ethernet net: Fix sysfs_format_mac() code duplication. 2013-07-16 17:09:22 -07:00
ieee802154 net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -07:00
ipv4 tcp: add server ip to encrypt cookie in fast open 2013-08-10 00:35:33 -07:00
ipv6 net: add SNMP counters tracking incoming ECN bits 2013-08-08 22:24:59 -07:00
ipx net: pass info struct via netdevice notifier 2013-05-28 13:11:01 -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 af_key: more info leaks in pfkey messages 2013-07-30 16:26:16 -07:00
l2tp l2tp: make datapath resilient to packet loss when sequence numbers enabled 2013-07-02 16:33:25 -07:00
lapb
llc llc: Fix missing msg_namelen update in llc_ui_recvmsg() 2013-04-07 16:28:01 -04:00
mac80211 mac80211: fix monitor interface suspend crash regression 2013-07-23 14:02:08 +02:00
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 git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-03 21:36:46 -07:00
netlabel netlabel: use domain based selectors when address based selectors are not available 2013-08-02 16:57:01 -07:00
netlink Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-03 21:36:46 -07:00
netrom net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
nfc NFC: netlink: Rename CMD_FW_UPLOAD to CMD_FW_DOWNLOAD 2013-07-31 01:19:43 +02:00
openvswitch openvswitch: Add Kconfig dependency on GRE-DEMUX. 2013-07-01 13:19:43 -07:00
packet net: attempt high order allocations in sock_alloc_send_pskb() 2013-08-10 01:16:44 -07:00
phonet net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
rds net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
rfkill Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-04-22 14:58:14 -04:00
rose net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-03 21:36:46 -07:00
sctp Revert "net: sctp: convert sctp_checksum_disable module param into sctp sysctl" 2013-08-09 13:09:41 -07:00
sunrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-03 21:36:46 -07:00
tipc tipc: fix oops when creating server socket fails 2013-08-01 15:54:33 -07:00
unix net: attempt high order allocations in sock_alloc_send_pskb() 2013-08-10 01:16:44 -07:00
vmw_vsock VSOCK: Move af_vsock.h and vsock_addr.h to include/net 2013-07-27 22:14:06 -07:00
wimax
wireless regulatory: use correct regulatory initiator on wiphy register 2013-07-25 09:52:46 +02:00
x25 x25: Fix broken locking in ioctl error paths. 2013-07-01 18:15:25 -07:00
xfrm net: split rt_genid for ipv4 and ipv6 2013-07-31 14:56:36 -07:00
compat.c net: Unbreak compat_sys_{send,recv}msg 2013-06-06 11:52:14 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-03 21:36:46 -07:00
Makefile MPLS: Add limited GSO support 2013-05-27 22:50:59 -07:00
nonet.c
socket.c net: rename CONFIG_NET_LL_RX_POLL to CONFIG_NET_RX_BUSY_POLL 2013-08-01 15:11:17 -07:00
sysctl_net.c