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From: "Alexander Müller" <aexme@arcor.de>
To: ath9k-devel@lists.ath9k.org
Subject: [ath9k-devel] ath9k ar9285, wlan speed <2 Mbyte/s, how to speedup?
Date: Tue, 03 Jan 2012 20:01:29 +0100	[thread overview]
Message-ID: <4F035089.3000706@arcor.de> (raw)

Hi,

I have an Atheros AR9285 in my Samsung Notebook and run Kubuntu 11.10 
and Win7 on it.
While using Win7 i get speeds of about 8 Mbyte/s
When using Kubuntu I get only speeds below 2 Mbyte/s

I tried the daily driver of 2 january 2012, but nothing changed.
via wired I get about 8 Mbyte/s, just to show that its not on the server 
side.

Is it possibly to get higher speeds?
it's just kinda sad to get speeds from 5 years ago with new Hardware.

thanks

Here some data:

*iw list:*
Wiphy phy0
         Band 1:
                 Capabilities: 0x11ce
                         HT20/HT40
                         SM Power Save disabled
                         RX HT40 SGI
                         TX STBC
                         RX STBC 1-stream
                         Max AMSDU length: 7935 bytes
                         DSSS/CCK HT40
                 Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
                 Minimum RX AMPDU time spacing: 8 usec (0x06)
                 HT TX/RX MCS rate indexes supported: 0-7
                 Frequencies:
                         * 2412 MHz [1] (14.0 dBm)
                         * 2417 MHz [2] (15.0 dBm)
                         * 2422 MHz [3] (15.0 dBm)
                         * 2427 MHz [4] (15.0 dBm)
                         * 2432 MHz [5] (15.0 dBm)
                         * 2437 MHz [6] (15.0 dBm)
                         * 2442 MHz [7] (15.0 dBm)
                         * 2447 MHz [8] (15.0 dBm)
                         * 2452 MHz [9] (15.0 dBm)
                         * 2457 MHz [10] (15.0 dBm)
                         * 2462 MHz [11] (15.0 dBm)
                         * 2467 MHz [12] (15.0 dBm) (passive scanning)
                         * 2472 MHz [13] (14.0 dBm) (passive scanning)
                         * 2484 MHz [14] (disabled)
                 Bitrates (non-HT):
                         * 1.0 Mbps
                         * 2.0 Mbps (short preamble supported)
                         * 5.5 Mbps (short preamble supported)
                         * 11.0 Mbps (short preamble supported)
                         * 6.0 Mbps
                         * 9.0 Mbps
                         * 12.0 Mbps
                         * 18.0 Mbps
                         * 24.0 Mbps
                         * 36.0 Mbps
                         * 48.0 Mbps
                         * 54.0 Mbps
         max # scan SSIDs: 4
         Supported interface modes:
                  * IBSS
                  * managed
                  * AP
                  * AP/VLAN
                  * WDS
                  * monitor
                  * mesh point
                  * Unknown mode (8)
                  * Unknown mode (9)
         Supported commands:
                  * new_interface
                  * set_interface
                  * new_key
                  * new_beacon
                  * new_station
                  * new_mpath
                  * set_mesh_params
                  * set_bss
                  * authenticate
                  * associate
                  * deauthenticate
                  * disassociate
                  * join_ibss
                  * Unknown command (68)
                  * Unknown command (55)
                  * Unknown command (57)
                  * Unknown command (59)
                  * Unknown command (67)
                  * set_wiphy_netns
                  * Unknown command (65)
                  * Unknown command (66)
                  * Unknown command (82)
                  * Unknown command (81)
                  * Unknown command (84)
                  * Unknown command (87)
                  * Unknown command (85)
                  * testmode
                  * connect
                  * disconnect
*iwlist wlan0 scan:*
wlan0     Scan completed :
           Cell 01 - Address: 00:1C:4A:4G:DH:I9
                     Channel:5
                     Frequency:2.432 GHz (Channel 5)
                     Quality=70/70  Signal level=-33 dBm
                     Encryption key:on
                     ESSID:"mySSID"
                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                               9 Mb/s; 12 Mb/s; 18 Mb/s
                     Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                     Mode:Master
                     Extra:tsf=000000024f19e180
                     Extra: Last beacon: 15856ms ago
                     IE: Unknown: 00066165786C616E
                     IE: Unknown: 010882848B968C129824
                     IE: Unknown: 030105
                     IE: IEEE 802.11i/WPA2 Version 1
                         Group Cipher : TKIP
                         Pairwise Ciphers (1) : CCMP
                         Authentication Suites (1) : PSK
                     IE: WPA Version 1
                         Group Cipher : TKIP
                         Pairwise Ciphers (1) : TKIP
                         Authentication Suites (1) : PSK
                     IE: Unknown: 2A0100
                     IE: Unknown: 3204B048606C
                     IE: Unknown: 
DD180050F2020101800003A4000027A4000042435E0062322F00
                     IE: Unknown: 
2D1A4E101BFFFF000000000000000000000000000000000000000000
                     IE: Unknown: 
3D16050F0800000000000000000000000000000000000000
                     IE: Unknown: DD0900037F01010000FF7F
                     IE: Unknown: DD0A00037F04010001000000

*iw dev wlan0 link:*
Connected to 00:1c:4a:G5:Hd:I9 (on wlan0)
         SSID: mySSID
         freq: 2432
         RX: 148276513 bytes (133973 packets)
         TX: 7880580 bytes (68321 packets)
         signal: -34 dBm
         tx bitrate: 121.5 MBit/s MCS 6 40Mhz

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             reply	other threads:[~2012-01-03 19:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-03 19:01 Alexander Müller [this message]
2012-01-03 20:17 ` [ath9k-devel] ath9k ar9285, wlan speed <2 Mbyte/s, how to speedup? Peter Stuge
2012-01-04  7:20 ` Adrian Chadd
2012-01-04 15:08   ` Alexander Müller
2012-01-04 11:02 ` Mohammed Shafi
2012-01-04 15:13   ` Alexander Müller

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