Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:60939 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751939Ab0JAX41 convert rfc822-to-8bit (ORCPT ); Fri, 1 Oct 2010 19:56:27 -0400 Received: by wyb28 with SMTP id 28so3475124wyb.19 for ; Fri, 01 Oct 2010 16:56:26 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <201010020052.35855.chunkeey@googlemail.com> References: <201010011636.58033.chunkeey@googlemail.com> <201010020052.35855.chunkeey@googlemail.com> From: Saqeb Akhter Date: Fri, 1 Oct 2010 19:56:06 -0400 Message-ID: Subject: Re: carl9170: wnda3100 only 54MB/s To: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: Yes carl9170 (from 9/23). ----------------------------------------------------------------------------------------------------- Output from lshw -C network: *-network description: Wireless interface physical id: 1 bus info: usb@1:3 logical name: wlan2 serial: 00:22:3f:99:cd:81 capabilities: ethernet physical wireless configuration: broadcast=yes driver=carl9170 driverversion=2.6.32-24-generic firmware=1.8.8.3 ip=192.168.10.60 multicast=yes wireless=IEEE 802.11abgn ---------------------------------------------------------------------------------------------- sakhter@sakhter-laptop:~$ dmesg | grep alg [ 0.342735] alg: No test for stdrng (krng) [ 143.665241] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht' ------------------------------------------------------------------------------------------------ output iw dev wlan2 scan BSS 30:46:9a:10:49:f7 (on wlan2) -- associated TSF: 90703162427 usec (1d, 01:11:43) freq: 5200 beacon interval: 100 capability: ESS ShortSlotTime (0x0401) signal: -53.00 dBm last seen: 672 ms ago SSID: sakhter-5g Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0 DS Parameter set: channel 40 HT capabilities: Capabilities: 0x1ce HT20/HT40 SM Power Save disabled RX HT40 SGI TX STBC RX STBC 1-stream Max AMSDU length: 7935 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 1/2 usec (0x02) HT RX MCS rate indexes supported: 0-15 HT TX MCS rate indexes are undefined WPS: * Version: 1.0 * Manufacturer: Netgear, Inc. * Model: WNDR3700 * Device name: WNDR3700(Wireless AP) * Config methods: Ethernet, Label, PBC --------------------------------------------------------------------------------------------------- Hopefully some of that info can help u out. On Fri, Oct 1, 2010 at 6:52 PM, Christian Lamparter wrote: > On Saturday 02 October 2010 00:30:28 Saqeb Akhter wrote: >> Below is the out put from iperf on windows (about 3x faster). >> >> Not sure what to do to get better throughput...is this considered a bug or a >> lacking feature ? > nope, the "feature" is there... It's just not utilized > >> ------------------------------------------------------------------------------- >> sakhter@sakhter-laptop:~$ iw dev wlan2 link >> Connected to 30:46:9a:10:49:f7 (on wlan2) >> ? ? SSID: sakhter-5g >> ? ? freq: 5200 >> ? ? RX: 222040 bytes (949 packets) >> ? ? TX: 12082 bytes (77 packets) >> ? ? signal: -45 dBm >> ? ? tx bitrate: 54.0 MBit/s > are you sure carl9170 is actually handling the device (and not ar9170usb?). > Also what's the chosen rate control alg? ( - dmesg - will tell you that, > if it isn't "minstrel_ht", then post please post what "iw dev wlan2 scan" > shows you about your AP) > > Regards, > ? ? ? ?Chr > >