From owner-freebsd-wireless@FreeBSD.ORG  Sun Dec  4 10:22:05 2011
Return-Path: <owner-freebsd-wireless@FreeBSD.ORG>
Delivered-To: freebsd-wireless@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id D705E106566B
	for <freebsd-wireless@freebsd.org>;
	Sun,  4 Dec 2011 10:22:05 +0000 (UTC)
	(envelope-from adrian.chadd@gmail.com)
Received: from mail-vx0-f182.google.com (mail-vx0-f182.google.com
	[209.85.220.182])
	by mx1.freebsd.org (Postfix) with ESMTP id 88B438FC0C
	for <freebsd-wireless@freebsd.org>;
	Sun,  4 Dec 2011 10:22:05 +0000 (UTC)
Received: by vcbfk1 with SMTP id fk1so5256864vcb.13
	for <freebsd-wireless@freebsd.org>;
	Sun, 04 Dec 2011 02:22:05 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=M0DgjXK+XsR7Ei/8f/S80FF0w4LQ0QmGHOqWVmYMSxw=;
	b=Lsn2UEmf3C3GjTYrx2G7fOWQfXPF6/+Xa39KRVU+hx2t6WOhfkTGydXZZ5XFbPqY5q
	zZWCp2n1sKZCnHX5MFGK2HxsYt+Cjv3TMkAVVHd18SU/zrdDAaCNI1gihn1wwS59LOze
	C75fvy/AD3g6N5R8FcHy2itEYnIq8n8BqYeIo=
MIME-Version: 1.0
Received: by 10.52.20.35 with SMTP id k3mr2861303vde.34.1322994125051; Sun, 04
	Dec 2011 02:22:05 -0800 (PST)
Received: by 10.52.109.10 with HTTP; Sun, 4 Dec 2011 02:22:05 -0800 (PST)
In-Reply-To: <CAJ-VmondwkhHor_BNHNm_k4aSaTQOZXi3a70KVCuN=HO8=5FZA@mail.gmail.com>
References: <3d4d2d249836fafc6acd885693c02198@webmail.entel.upc.edu>
	<CAJ-Vmo=1k=oKP-vDUH=BLdyeVzGnQvNmJ6TwGcdQjwpgJWt52w@mail.gmail.com>
	<4ECFCDAB.1080407@entel.upc.edu>
	<CAJ-VmokQTpgxMo=gmj0LsYhD6t9mmoHXG_sbhZdFNW5_OSGbmg@mail.gmail.com>
	<a9d1d8f91deb80a89bed98c1ffdb23fd@webmail.entel.upc.edu>
	<CAJ-Vmo=P+WAArZ1Kidh947yHuftZTBwF=Vx5Kn36-LKtD4grPg@mail.gmail.com>
	<4ED3B4D1.3020701@entel.upc.edu>
	<CAJ-Vmo=1KimWWEkV4gqEyFiNQRZTkK8okPBSfnc494iJbtLzsw@mail.gmail.com>
	<4EDA4BBA.6010203@entel.upc.edu>
	<CAJ-Vmon7-PdC51nWjW-M-ojuShwG-iNrBpztNovsZpzgjm9BqA@mail.gmail.com>
	<4EDA609F.2080401@entel.upc.edu>
	<CAJ-VmomqbBpJ9whQ2EStP7i5fuaKvR=+A9gxQJm3hZnCi+JnOg@mail.gmail.com>
	<CAJ-Vmo=hEq9N=FhvdH8Ev7roG3TByJjri3q5rpLPDE__YZ=MZg@mail.gmail.com>
	<4EDB3A2B.4050503@entel.upc.edu>
	<CAJ-VmondwkhHor_BNHNm_k4aSaTQOZXi3a70KVCuN=HO8=5FZA@mail.gmail.com>
Date: Sun, 4 Dec 2011 18:22:05 +0800
Message-ID: <CAJ-VmomUVGN0QreaC4CfLG-G0FbUJ7gOW2u56i069Lt9gBGyLQ@mail.gmail.com>
From: Adrian Chadd <adrian.chadd@gmail.com>
To: =?ISO-8859-1?Q?Gustau_P=E9rez?= <gperez@entel.upc.edu>
Content-Type: text/plain; charset=ISO-8859-1
Cc: freebsd-wireless@freebsd.org
Subject: Re: Big delays between an AR5416 AP and its clients
X-BeenThere: freebsd-wireless@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Discussions of 802.11 stack,
	tools device driver development." <freebsd-wireless.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
	<mailto:freebsd-wireless-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-wireless>
List-Post: <mailto:freebsd-wireless@freebsd.org>
List-Help: <mailto:freebsd-wireless-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
	<mailto:freebsd-wireless-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 04 Dec 2011 10:22:05 -0000

Ok, to enable logging:

Firstly, let's just debug the non-beacon TX :

sysctl dev.ath.0.debug=0x3c000000
wlandebug -i wlan0 +rate

Then send some pings. You'll get a _lot_ of debugging. Please capture
some debugging. :)
Point out which log entries correspond to increased latency.

(This is assuming it's a TX issue; it's possibly an RX issue too..)

Thanks,


Adrian