AcoSail/kernel_optimize_test
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be281e554e
kernel_optimize_test/net
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Eric Dumazet be281e554e ipv6: reduce per device ICMP mib sizes 
ipv6 has per device ICMP SNMP counters, taking too much space because
they use percpu storage.

needed size per device is :
(512+4)*sizeof(long)*number_of_possible_cpus*2

On a 32bit kernel, 16 possible cpus, this wastes more than 64kbytes of
memory per ipv6 enabled network device, taken in vmalloc pool.

Since ICMP messages are rare, just use shared counters (atomic_long_t)

Per network space ICMP counters are still using percpu memory, we might
also convert them to shared counters in a future patch.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Denys Fedoryshchenko <denys@visp.net.lb>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-19 16:21:22 -04:00
..
9p 9p: Kill set but unused variable in 9p_client_{read,write}() and p9_client_readdir() 2011-04-12 15:58:41 -07:00
802 garp: remove last synchronize_rcu() call 2011-05-12 17:46:56 -04:00
8021q net: Fix vlan_features propagation 2011-05-12 17:54:13 -04:00
appletalk appletalk: Fix OOPS in atalk_release(). 2011-03-31 18:59:10 -07:00
atm atm: lec: Fix set-but-unused variables. 2011-04-17 00:48:36 -07:00
ax25 ax25: Fix set-but-unused variable. 2011-04-17 00:48:31 -07:00
batman-adv Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-merge 2011-05-14 22:47:51 -04:00
bluetooth bluetooth: Fix warnings in l2cap_core.c 2011-05-16 23:09:26 -04:00
bridge Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-17 17:33:11 -04:00
caif caif: remove unesesarry exports 2011-05-15 17:45:56 -04:00
can can: rename can_try_module_get to can_get_proto 2011-05-04 14:08:37 -07:00
ceph Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
core Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-19 15:55:45 -04:00
dcb
dccp ipv4: Make caller provide flowi4 key to inet_csk_route_req(). 2011-05-18 18:32:03 -04:00
decnet net: dont hold rtnl mutex during netlink dump callbacks 2011-05-02 15:26:28 -07:00
dns_resolver
dsa Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-05 14:59:02 -07:00
econet econet: Fix set-but-unused variable. 2011-04-17 00:15:22 -07:00
ethernet
ieee802154 ieee802154: Remove hacked CFLAGS in net/ieee802154/Makefile 2011-04-12 15:33:23 -07:00
ipv4 net: ping: fix the coding style 2011-05-19 16:17:51 -04:00
ipv6 ipv6: reduce per device ICMP mib sizes 2011-05-19 16:21:22 -04:00
ipx
irda net/irda/ircomm_tty.c: Use flip buffers to deliver data 2011-05-12 18:02:51 -04:00
iucv convert old cpumask API into new one 2011-05-13 14:55:21 -04:00
key inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
l2tp l2tp: fix potential rcu race 2011-05-12 17:27:10 -04:00
lapb
llc llc: Fix length check in llc_fixup_skb(). 2011-04-11 18:59:05 -07:00
mac80211 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-17 17:33:11 -04:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-17 17:33:11 -04:00
netlabel netlabel: Fix set-but-unused variables. 2011-04-17 17:01:49 -07:00
netlink
netrom NET: AX.25, NETROM, ROSE: Remove SOCK_DEBUG calls 2011-04-14 00:20:07 -07:00
packet net: filter: Just In Time compiler for x86-64 2011-04-27 23:05:08 -07:00
phonet net: dont hold rtnl mutex during netlink dump callbacks 2011-05-02 15:26:28 -07:00
rds Fix common misspellings 2011-03-31 11:26:23 -03:00
rfkill net/rfkill/core.c: Avoid leaving freed data in a list 2011-05-16 14:10:42 -04:00
rose NET: AX.25, NETROM, ROSE: Remove SOCK_DEBUG calls 2011-04-14 00:20:07 -07:00
rxrpc ipv4: Make caller provide on-stack flow key to ip_route_output_ports(). 2011-05-03 20:25:42 -07:00
sched inet: constify ip headers and in6_addr 2011-04-22 11:04:14 -07:00
sctp sctp: sctp_sendmsg: Don't test known non-null sinfo 2011-05-12 17:30:50 -04:00
sunrpc Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 2011-04-08 11:47:35 -07:00
tipc tipc: Revise timings used when sending link request messages 2011-05-10 16:04:02 -04:00
unix af_unix: Only allow recv on connected seqpacket sockets. 2011-05-01 23:16:28 -07:00
wanrouter Fix common misspellings 2011-03-31 11:26:23 -03:00
wimax
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-05-16 19:32:19 -04:00
x25 Fix common misspellings 2011-03-31 11:26:23 -03:00
xfrm Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6 2011-05-11 14:26:58 -04:00
compat.c net: Add sendmmsg socket system call 2011-05-05 11:10:14 -07:00
Kconfig bpf: depends on MODULES 2011-04-29 10:20:53 -07:00
Makefile
nonet.c
socket.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2011-05-17 17:33:11 -04:00
sysctl_net.c
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