linux-kernel - Re: [rt2x00-users] Poor performance and lockup with rt2800usb and Asus USB-N13 adapter

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Message-ID: <4ED4D47B.5000005@01019freenet.de>
Date:	Tue, 29 Nov 2011 13:47:55 +0100
From:	Andreas Hartmann <andihartmann@...19freenet.de>
To:	Stanislaw Gruszka <sgruszka@...hat.com>
CC:	Robert Hancock <hancockrwd@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-wireless <linux-wireless@...r.kernel.org>,
	users@...x00.serialmonkey.com
Subject: Re: [rt2x00-users] Poor performance and lockup with rt2800usb and
 Asus USB-N13 adapter

Stanislaw Gruszka schrieb:
> On Mon, Nov 28, 2011 at 07:50:20PM -0600, Robert Hancock wrote:
>> I recently got an Asus USB-N13 USB Wireless-N adapter which
>> apparently uses a Ralink RT3072 chip. I'm using it with an Asus
>> RT-N16 access point running TomatoUSB. When running Windows the
>> performance is reasonable (about 80 Mbps in both directions).
>> However under Fedora 16 (currently kernel 3.1.2) the performance is
>> abysmal (10 Mbps or less with lots of packet loss). I'll post some
>> debug information below.
> rt2800usb needs fixing. I'm able to reproduce these performance
> problems locally. They are quite hard to debug, and need some
> experiments. But I hope I will provide patches soon or leter.

I really appreciate your work! If you want, I can do some tests for you.
I've a rt3572 based USB WiFi dongle, which could be tested with a single
threaded machine and a multi threaded one.


Good luck!
Andreas
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