diff options
author | Michael Maxim <mike@okcupid.com> | 2011-12-08 10:55:09 -0500 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-12-13 11:34:48 +0100 |
commit | 76ad94fc5df865e34e09406614f29951a046394a (patch) | |
tree | 3bb7ebe3425c65293ff9e4ad5eb2d059a13f6421 /net/netfilter/ipvs/Kconfig | |
parent | e26f9a480fb6c1b614660e824d69a74e2ce990f3 (diff) |
IPVS: Modify the SH scheduler to use weights
Modify the algorithm to build the source hashing hash table to add
extra slots for destinations with higher weight. This has the effect
of allowing an IPVS SH user to give more connections to hosts that
have been configured to have a higher weight.
The reason for the Kconfig change is because the size of the hash table
becomes more relevant/important if you decide to use the weights in the
manner this patch lets you. It would be conceivable that someone might
need to increase the size of that table to accommodate their
configuration, so it will be handy to be able to do that through the
regular configuration system instead of editing the source.
Signed-off-by: Michael Maxim <mike@okcupid.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/ipvs/Kconfig')
-rw-r--r-- | net/netfilter/ipvs/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/netfilter/ipvs/Kconfig b/net/netfilter/ipvs/Kconfig index 70bd1d0774c6..af4c0b8c5275 100644 --- a/net/netfilter/ipvs/Kconfig +++ b/net/netfilter/ipvs/Kconfig @@ -232,6 +232,21 @@ config IP_VS_NQ If you want to compile it in kernel, say Y. To compile it as a module, choose M here. If unsure, say N. +comment 'IPVS SH scheduler' + +config IP_VS_SH_TAB_BITS + int "IPVS source hashing table size (the Nth power of 2)" + range 4 20 + default 8 + ---help--- + The source hashing scheduler maps source IPs to destinations + stored in a hash table. This table is tiled by each destination + until all slots in the table are filled. When using weights to + allow destinations to receive more connections, the table is + tiled an amount proportional to the weights specified. The table + needs to be large enough to effectively fit all the destinations + multiplied by their respective weights. + comment 'IPVS application helper' config IP_VS_FTP |