Return-path: Received: from mout0.freenet.de ([195.4.92.90]:45307 "EHLO mout0.freenet.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752378Ab1K2Msu (ORCPT ); Tue, 29 Nov 2011 07:48:50 -0500 Message-ID: <4ED4D47B.5000005@01019freenet.de> (sfid-20111129_134908_041419_7CA2B8AB) Date: Tue, 29 Nov 2011 13:47:55 +0100 From: Andreas Hartmann MIME-Version: 1.0 To: Stanislaw Gruszka CC: Robert Hancock , linux-kernel , linux-wireless , users@rt2x00.serialmonkey.com Subject: Re: [rt2x00-users] Poor performance and lockup with rt2800usb and Asus USB-N13 adapter References: <4ED43A5C.9000102@gmail.com> <20111129114603.GB7299@redhat.com> In-Reply-To: <20111129114603.GB7299@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: 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