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f744bf81f7
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Thomas Huehn f744bf81f7 mac80211: add lowest rate into minstrel's random rate sampling table 
While minstrel bootstraps and fills the success probabilities of each
rate the lowest rate has typically a very high success probability
(often 100% in our tests).
Its statistics are never updated but considered to setup the mrr chain.
In our tests we see that especially the 3rd mrr stage (which is that
rate providing highest success probability) is filled with the lowest rate
because its initial high sucess probability is never updated. By design
the 4th mrr stage is filled with the lowest rate so often 3rd and 4th
mrr stage are equal.

This patch follows minstrels general approach of assuming as little
as possible about rate dependencies. Consequently we include the
lowest rate into the random sampling table to get balanced up-to-date
statistics of all rates and therefore balanced decisions.

Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:36:09 +01:00
..
9p hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
802 mrp: make mrp_rcv static 2013-02-11 14:16:26 -05:00
8021q net: proc: change proc_net_remove to remove_proc_entry 2013-02-18 14:53:08 -05:00
appletalk hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
atm hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ax25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
batman-adv hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
bluetooth hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
bridge hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
caif Merge branch 'master' into for-next 2013-01-29 10:48:30 +01:00
can hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2013-02-28 17:43:09 -08:00
core hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
dcb net: Allow DCBnl to use other namespaces besides init_net 2012-12-10 14:09:01 -05:00
dccp Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
decnet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
dns_resolver Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2012-12-16 15:40:50 -08:00
dsa dsa: make dsa_switch_setup check for valid port names 2013-01-21 15:40:12 -05:00
ethernet net: split eth_mac_addr for better error handling 2013-01-21 14:07:44 -05:00
ieee802154 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ipv4 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ipv6 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
ipx hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
irda Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
iucv hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
key hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
l2tp hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
lapb net/lapb: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:40:01 -08:00
llc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
mac80211 mac80211: add lowest rate into minstrel's random rate sampling table 2013-03-06 16:36:09 +01:00
mac802154 Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
netfilter hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
netlabel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
netlink hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
netrom hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
nfc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
openvswitch hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
packet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
phonet hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rds hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rfkill net: rfkill: Fix sparse warning in rfkill-regulator.c 2013-03-06 16:35:41 +01:00
rose hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
rxrpc Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sched hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sctp hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
sunrpc NFS client bugfixes for Linux 3.9 2013-03-02 16:46:07 -08:00
tipc hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
unix hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
vmw_vsock VSOCK: Don't reject PF_VSOCK protocol 2013-02-18 15:02:51 -05:00
wimax
wireless regulatory: allow VHT channels in world roaming 2013-03-06 16:36:05 +01:00
x25 hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
xfrm hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
compat.c make get_file() return its argument 2012-09-26 21:10:25 -04:00
Kconfig Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
Makefile VSOCK: Introduce VM Sockets 2013-02-10 19:41:08 -05:00
nonet.c
socket.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
sysctl_net.c user_ns: get rid of duplicate code in net_ctl_permissions 2012-11-18 20:32:45 -05:00