802.11n performance for AR9280

[Gleb Romanov]

Thanks!

Do you recommend to update everything or only ATH module will be enough?

IE get all the sources and follow https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
Or
Download the ATH sources and "make all install" ?

Gleb

> -----Original Message-----
> From: adrian.chadd at gmail.com [mailto:adrian.chadd at gmail.com] On
> Behalf Of Adrian Chadd
> Sent: Monday, April 01, 2013 6:22 PM
> To: Gleb Romanov
> Cc: freebsd-wireless at freebsd.org
> Subject: Re: 802.11n performance for AR9280
> 
> Hi,
> 
> 9.x doesn't implement 11n aggregation transmission. It only supports 11n
> MCS rate transmission (with no aggregation) and 11n RX with MCS and
> aggregation.
> 
> If you update to -HEAD you should see the performance increase.
> 
> 
> 
> Adrian
> 
> On 1 April 2013 15:10, Gleb Romanov <gromanov at hellok.org> wrote:
> > Hello,
> >
> > I have a question about 802.11n performance for AR9280 ( my card is
> Ubiquiti SR71E ) in hostap mode. To measure performance, I'm looking at
> the download speeds from my file server (Samba) through a FreeBSD AP to a
> laptop with Centrino 6300 (agn 3x3:3).
> > I see 3-4 MBytes/s on the 2.4 GHz band (using ht/20 or ht/40 - doesn't
> matter) and around 5-6 MB/s on the 5 GHz band (ht/40).
> > The laptop is running Win 7 and can do 8-9 MB/s with a commercial AP
> > (2.4 GHz  ht/20  2x2:2)
> >
> > I run 9.1-RELEASE GENERIC and the question is this is the expected
> performance (from 9.1 RELEASE ) or I'm just doing something wrong? May be
> bad antennas or wires?
> > If it is expected and I need to switch to HEAD to do better, can I only
> update the "ATH_module_releated_stuff" and leave the rest of the base
> untouched?
> > Any comments would be helpful!
> >
> > Gleb
> >
> >
> > -------
> > Here is some info about the system:
> > Right now it is configured for 2.4 GHz simply because of the range. With 5
> GHz I need to in the same room with the AP to get the speeds I mentioned.
> >
> > uname -a
> > FreeBSD fwall 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec  4
> 09:23:10 UTC 2012
> root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
> >
> > pciconf -lv
> > ath0 at pci0:3:0:0:        class=0x028000 card=0x4e050777 chip=0x002a168c
> rev=0x01 hdr=0x00
> >     vendor     = 'Atheros Communications Inc.'
> >     device     = 'AR928X Wireless Network Adapter (PCI-Express)'
> >     class      = network
> >
> > /etc/rc.conf
> > wlans_ath0="wlan0"
> > create_args_wlan0="wlanmode hostap"
> > ifconfig_wlan0="apbridge mode 11ng ht channel 3:ht/40"
> > hostapd_enable="YES"    #for wlan0
> > hostapd_program="/usr/local/sbin/hostapd"   #run from port instead of
> base
> >
> > ifconfig
> > wlan0:
> flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric
> 0 mtu 1500
> >         ether 00:15:6d:85:25:13
> >         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
> >         media: IEEE 802.11 Wireless Ethernet autoselect mode 11ng <hostap>
> >         status: running
> >         ssid badaboom-n channel 3 (2422 MHz 11g ht/40+) bssid
> 00:15:6d:85:25:13
> >         country US ecm authmode WPA2/802.11i privacy MIXED deftxkey 2
> >         AES-CCM 2:128-bit AES-CCM 3:128-bit txpower 27 scanvalid 60
> >         protmode CTS -htcompat -ampdu ampdulimit 64k ampdudensity 8 -
> amsdu
> >         smps wme burst dtimperiod 1 -dfs
> >
> > /etc/hostapd.conf:
> > ht_capab=[HT40+][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-
> STBC12][DELAYED
> > -BA][MAX-AMSDU-7935][DSSS_CCK-40][LDPC][GF][SMPS-
> DYNAMIC][PSMP][LSIG-T
> > XOP-PROT] (Here I used all available options. I don't see any
> > difference between using the line and commenting it out. Huh?)
> > _______________________________________________
> > freebsd-wireless at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless
> > To unsubscribe, send any mail to "freebsd-wireless-
> unsubscribe at freebsd.org"