Date: Fri, 15 Jun 2007 09:24:47 +0200 From: Patrick Proniewski <patpro@patpro.net> To: freebsd-performance@freebsd.org Subject: wifi network performance with ath0 and hostapd Message-ID: <8A81ECB9-67EB-4E4D-A26A-8221D52463AA@patpro.net>
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Hello,
I've setup a little WLAN at home, using my freebsd box as an access
point:
- FreeBSD 6.2 (tag=RELENG_6_2)
- DLink DWL-G520 PCI card (Atheros chipset)
- hostapd configured with WPA
The "client" is a powerbook G4 (Built-in 54-Mbps Wi-Fi, certified for
802.11g and 802.11b interoperability) running Mac OS X 10.4.9
The powerbook is 1.5 meters away from the Dlink antena, and ath0 is
in "mode 11g" and "pureg".
The best transfer rate I can achieve is 3.1 MB/s from the powerbook
to the freebsd-box, and about 2.7 MB/s from the freebsd-box to the
powerbook.
Any idea how I could boost my transfer rates ?
thanks,
patpro
--
$ ifconfig ath0
ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 2290
inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:19:5b:ca:31:3a
media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
<hostap>
status: associated
ssid boleskine channel 2 bssid 00:19:5b:ca:31:3a
authmode WPA privacy MIXED deftxkey 3 TKIP 2:128-bit TKIP
3:128-bit
txpowmax 36 bmiss 7 pureg protmode CTS burst dtimperiod 1
bintval 100
$ wicontrol -i ath0
NIC serial number: [ ]
Station name: [ ****.*******.** ]
SSID for IBSS creation: [ boleskine ]
Current netname (SSID): [ boleskine ]
Desired netname (SSID): [ boleskine ]
Current BSSID: [ 00:19:5b:ca:31:3a ]
Channel list: [ 3ffe ]
IBSS channel: [ 2 ]
Current channel: [ 2 ]
Comms quality/signal/noise: [ 0 4 0 ]
Promiscuous mode: [ Off ]
Intersil-Prism2 based card: [ 1 ]
Port type (1=BSS, 3=ad-hoc): [ 6 ]
MAC address: [ 00:19:5b:ca:31:3a ]
TX rate (selection): [ 0 ]
TX rate (actual speed): [ 36 ]
RTS/CTS handshake threshold: [ 2346 ]
Create IBSS: [ Off ]
Access point density: [ 1 ]
Power Mgmt (1=on, 0=off): [ 0 ]
Max sleep time: [ 100 ]
WEP encryption: [ On ]
TX encryption key: [ 3 ]
Encryption keys: [ ][ ][ ][ ]
$ dmesg | grep -i ath
ath_hal: 0.9.17.2 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
RF5413)
ath0: <Atheros 5212> mem 0xd8120000-0xd812ffff irq 21 at device 5.0
on pci6
ath0: Ethernet address: 00:19:5b:ca:31:3a
ath0: mac 7.9 phy 4.5 radio 5.6
$ kldstat
Id Refs Address Size Name
1 18 0xc0400000 3ae6d4 kernel
2 1 0xc07af000 fbc0 if_ath.ko
3 3 0xc07bf000 312f8 ath_hal.ko
4 8 0xc07f1000 1d7e4 wlan.ko
5 2 0xc080f000 3f18 ath_rate.ko
6 1 0xc0813000 a9d4 cpufreq.ko
7 1 0xc081e000 2d08 wlan_wep.ko
8 1 0xc0821000 4000 wlan_tkip.ko
9 1 0xc0825000 6d04 wlan_ccmp.ko
10 1 0xc082c000 1b10 wlan_xauth.ko
11 1 0xc082e000 2c54 wlan_acl.ko
12 1 0xc0831000 59e80 acpi.ko
13 1 0xc51d7000 2000 pflog.ko
14 1 0xc51e3000 2a000 pf.ko
15 1 0xc53c4000 2000 green_saver.ko
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