Eric Dumazet f86dcc5aa8 udp: dynamically size hash tables at boot time ... UDP_HTABLE_SIZE was initialy defined to 128, which is a bit small for several setups. 4000 active UDP sockets -> 32 sockets per chain in average. An incoming frame has to lookup all sockets to find best match, so long chains hurt latency. Instead of a fixed size hash table that cant be perfect for every needs, let UDP stack choose its table size at boot time like tcp/ip route, using alloc_large_system_hash() helper Add an optional boot parameter, uhash_entries=x so that an admin can force a size between 256 and 65536 if needed, like thash_entries and rhash_entries. dmesg logs two new lines : [ 0.647039] UDP hash table entries: 512 (order: 0, 4096 bytes) [ 0.647099] UDP Lite hash table entries: 512 (order: 0, 4096 bytes) Maximal size on 64bit arches would be 65536 slots, ie 1 MBytes for non debugging spinlocks. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-10-07 22:00:22 -07:00
..
9p	virtio: add virtio IDs file	2009-09-23 22:26:32 +09:30
802	net: remove COMPAT_NET_DEV_OPS	2009-05-25 01:53:53 -07:00
8021q	net: fix vlan_get_size to include vlan_flags size	2009-09-26 20:16:07 -07:00
appletalk	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
atm	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
ax25	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
bluetooth	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
bridge	bridge: Fix double-free in br_add_if.	2009-09-28 12:54:25 -07:00
can	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
core	ethtool: Add reset operation	2009-10-07 01:10:44 -07:00
dcb	net: fix double skb free in dcbnl	2009-09-26 20:16:15 -07:00
dccp	IPv6: use ipv6_addr_set_v4mapped()	2009-10-07 13:58:25 -07:00
decnet	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
dsa	netdev: convert pseudo-devices to netdev_tx_t	2009-09-01 01:13:07 -07:00
econet	econet: Fix redeclaration of symbol len	2009-10-07 14:43:04 -07:00
ethernet	net: remove COMPAT_NET_DEV_OPS	2009-05-25 01:53:53 -07:00
ieee802154	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
ipv4	udp: dynamically size hash tables at boot time	2009-10-07 22:00:22 -07:00
ipv6	udp: dynamically size hash tables at boot time	2009-10-07 22:00:22 -07:00
ipx	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
irda	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
iucv	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
key	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
lapb	net: remove NET_RX_BAD and NET_RX_CN* defines	2009-07-05 19:15:35 -07:00
llc	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
mac80211	cfg80211: assign device type in netdev notifier callback	2009-10-05 00:43:34 -07:00
netfilter	net: Make setsockopt() optlen be unsigned.	2009-09-30 16:12:20 -07:00
netlabel	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2009-07-30 19:22:43 -07:00
netlink	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
netrom	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
packet	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
phonet	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
rds	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
rfkill	headers: remove sched.h from poll.h	2009-10-04 15:05:10 -07:00
rose	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
rxrpc	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
sched	pkt_sched: gen_estimator: Dont report fake rate estimators	2009-10-07 01:07:42 -07:00
sctp	net: Make setsockopt() optlen be unsigned.	2009-09-30 16:12:20 -07:00
sunrpc	IPv6: use ipv6_addr_set_v4mapped()	2009-10-07 13:58:25 -07:00
tipc	net: Make setsockopt() optlen be unsigned.	2009-09-30 16:12:20 -07:00
unix	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
wanrouter	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
wimax	wimax: fix warning caused by not checking retval of rfkill_set_hw_state()	2009-06-11 11:12:48 -07:00
wireless	cfg80211: assign device type in netdev notifier callback	2009-10-05 00:43:34 -07:00
x25	net: mark net_proto_ops as const	2009-10-07 01:10:46 -07:00
xfrm	net: file_operations should be const	2009-09-02 01:03:53 -07:00
compat.c	net: Make setsockopt() optlen be unsigned.	2009-09-30 16:12:20 -07:00
Kconfig	net/compat/wext: send different messages to compat tasks	2009-07-15 08:53:39 -07:00
Makefile	net: remove redundant sched/ in net/Makefile	2009-07-12 20:11:14 -07:00
nonet.c
socket.c	net: speedup sk_wake_async()	2009-10-06 17:28:29 -07:00
sysctl_net.c	net: sysctl_net - use net_eq to compare nets	2009-03-16 16:23:30 +01:00
TUNABLE