Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932479AbXLQHSQ (ORCPT ); Mon, 17 Dec 2007 02:18:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755007AbXLQHR7 (ORCPT ); Mon, 17 Dec 2007 02:17:59 -0500 Received: from rv-out-0910.google.com ([209.85.198.191]:60468 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754841AbXLQHR6 (ORCPT ); Mon, 17 Dec 2007 02:17:58 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=ToTyoXp4dowqJ4Rcxsr8zKQDTME7fLtJ+DaixBm0WUzSjiXMo9SzLUzcU1gC7HKVWdKXY1KmUBGGijrY4qTHb6bmohGjiWEc7Bbi+CIpMFcyddBTun/afKil4I/ykmP0inAdw8wkYOi6GKVhwDYX42E0WTQrHarWt/R+C4f4VQc= Message-ID: <520b60a90712162317r5c2f2569gbd75c09742ff5493@mail.gmail.com> Date: Mon, 17 Dec 2007 02:17:58 -0500 From: mvtodevnull@gmail.com To: "Larry Finger" Subject: Re: [PATCH 3/3] net: wireless: bcm43xx: big_buffer_sem semaphore to mutex Cc: "Rafael J. Wysocki" , "Michael Buesch" , "Daniel Walker" , "Ray Lee" , "=?ISO-8859-1?Q?Simon_Holm_Th=F8gersen?=" , matthias.kaehlcke@gmail.com, linux-kernel@vger.kernel.org, linux@bohmer.net, "Ingo Molnar" , kjwinchester@gmail.com, jonathan@jonmasters.org, akpm@linux-foundation.org, bcm43xx-dev@lists.berlios.de In-Reply-To: <47661CA1.3080808@lwfinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20071213003028.676998182@mvista.com> <476326A1.6090404@lwfinger.net> <520b60a90712141759h65f1e63ei65ba00887a930d06@mail.gmail.com> <47633BAE.6040604@lwfinger.net> <520b60a90712142037j14d54de5nf5657ab2927fb3f5@mail.gmail.com> <520b60a90712142039t539faeddo68e73816fe1b3237@mail.gmail.com> <47637FDA.2030303@lwfinger.net> <520b60a90712150438p1f0ae40bt5975b494ab75203c@mail.gmail.com> <520b60a90712161817uaa2d1a8y5dfb13b586ca30ad@mail.gmail.com> <47661CA1.3080808@lwfinger.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1375 Lines: 24 On Dec 17, 2007 1:52 AM, Larry Finger wrote: > > One major difference between bcm43xx-SoftMAC and b43-mac80211 is that the former always used a fixed > rate; whereas mac80211 tries to adjust the bit rate according to the transmission conditions. > Perhaps it isn't working quite right in your case because of some peculiarity of your AP. IIRC, you > have an 802.11b AP. If so, you will get the same bit speed behavior for mac80211 as for bcdm43xx by > issuing a 'sudo iwconfig eth1 rate 11M' command. I don't know what happened before, but after a reboot, I can't repeat the 200 kB/s speed. It's back down to 40 kB/s, just like originally. I didn't move the laptop, or the ap, the only thing I can think of that might have changed is the noise level. FWIW, link quality is consistently the same or better with b43. Anyway, I'd noticed before that the bit rate starts at 1 Mb/s and quickly scales to 11 Mb/s, but I tried setting it manually anyway and didn't see any change. In fact, I set the rate to 5.5 Mb/s as well as 1 Mb/s and the download speed was the same with all three (around 30-40 kB/s). -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/