Return-path: Received: from mtiwmhc11.worldnet.att.net ([204.127.131.115]:63968 "EHLO mtiwmhc11.worldnet.att.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753904AbZCAT3t (ORCPT ); Sun, 1 Mar 2009 14:29:49 -0500 Message-ID: <49AAE22A.3080808@lwfinger.net> (sfid-20090301_202952_882942_715A272C) Date: Sun, 01 Mar 2009 13:29:46 -0600 From: Larry Finger MIME-Version: 1.0 To: "P.G. Richardson" CC: linux-wireless@vger.kernel.org Subject: Re: rtl8187 performance diagnostics References: <35879.82.152.175.172.1234904444.squirrel@www.phantomjinx.co.uk> <499B27A4.30708@lwfinger.net> <42781.82.152.175.172.1234911183.squirrel@www.phantomjinx.co.uk> <499B4526.1030705@lwfinger.net> <44177.82.152.175.172.1235088928.squirrel@www.phantomjinx.co.uk> <499E1826.8040903@lwfinger.net> <56183.82.152.175.172.1235173364.squirrel@www.phantomjinx.co.uk> <499F4763.70106@lwfinger.net> <60836.82.152.175.172.1235929727.squirrel@www.phantomjinx.co.uk> In-Reply-To: <60836.82.152.175.172.1235929727.squirrel@www.phantomjinx.co.uk> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: P.G. Richardson wrote: > Is there anything I can do to help improve this situation? These results > seems to rule out hardware in favour of being driver related. Are there > other tests I could perform to determine where the fragility lies? > > Any thoughts, let me know. OK, the Windows driver is better than the Linux one. Unfortunately, source is not available. You can check what we did when the RTL8187B was implemented. To do that, you need to download the Realtek vendor-written Linux driver and check what they do against what is in the current in-kernel driver. The critical areas will likely be associated with power settings for the radio. Be aware that their code is quite difficult to read as it has multiple conditional compilations that are hard to keep straight. I will be happy to test any improvements that you suggest. Larry