From owner-freebsd-wireless@FreeBSD.ORG  Mon Mar 26 10:05:18 2012
Return-Path: <owner-freebsd-wireless@FreeBSD.ORG>
Delivered-To: freebsd-wireless@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 688AD1065673
	for <freebsd-wireless@freebsd.org>;
	Mon, 26 Mar 2012 10:05:18 +0000 (UTC)
	(envelope-from adrian.chadd@gmail.com)
Received: from mail-gy0-f182.google.com (mail-gy0-f182.google.com
	[209.85.160.182])
	by mx1.freebsd.org (Postfix) with ESMTP id 1AB5A8FC12
	for <freebsd-wireless@freebsd.org>;
	Mon, 26 Mar 2012 10:05:18 +0000 (UTC)
Received: by ghrr20 with SMTP id r20so4413016ghr.13
	for <freebsd-wireless@freebsd.org>;
	Mon, 26 Mar 2012 03:05:17 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=SozEXD0jQ6stcjUU4aejPT9o0GnQcbPN5YaHHqYIycA=;
	b=nkJmVpru8hPmmQHqqL78edEHV6gRsIU1q6iNweArbQ/swK3TFv6q8vPmQEdHhwBmr2
	jQyhEf3Bq8qOz/h+Gxb4KWdZNl9eCnu1V34XsFVlOYzf4igfgfiBOFfHQ1zmw4IpVP/4
	Dd7mHF7lvkzltRMf2t12DTFfVTLlG/TkZoNprR2zROG8VBFgCUJUuN+NPHa1BvSbSLVS
	f2WVm7jOHLiAiwxjIckbEYCo4kwE5HjVMI4Dphu/r/mIynwvX0/SZ/6qzKcdBMsYUjU9
	UXTkK2eH/Gz+ISEIccKBG0mXFD1m3BmykN/j/U84aAqz6PL9L6wqjTKowA1BCBWJV1+k
	awpg==
MIME-Version: 1.0
Received: by 10.68.212.228 with SMTP id nn4mr37985535pbc.68.1332756317284;
	Mon, 26 Mar 2012 03:05:17 -0700 (PDT)
Received: by 10.143.33.5 with HTTP; Mon, 26 Mar 2012 03:05:17 -0700 (PDT)
In-Reply-To: <CAEJYa-QhFYqO6Y_7+kO-NvugYR7XvGOUZaF86iqq2OqWciS+UQ@mail.gmail.com>
References: <CAEJYa-QRx3XU6GjcWnJSTEON2QOUe_gA9Oh0Xo9Vk2ksm0pX+g@mail.gmail.com>
	<4f6f67a7.4a0c440a.3941.ffffc865@mx.google.com>
	<CAEJYa-RPhRng5tDG88yM8Rx1QE-ttkcoanEH=vn-NN-kc9B6oQ@mail.gmail.com>
	<CAJ-Vmo=JuGc0XA_2-q8FB9SGK4kJcQwC3ry0wm7sRxKe8dHaTQ@mail.gmail.com>
	<CAEJYa-TKdEjynQnM8LTXM863vWWw518VXX_DGVEpw6OvMPzgig@mail.gmail.com>
	<CAJ-Vmom-cBgnuAdXCcH5iVkf32kU6O8T_T+==uGpNdBsGu3wOA@mail.gmail.com>
	<CAEJYa-SgTmyX_DodPhcd9B2CYjFB5T0j10KpHX7MHD_g24jUAA@mail.gmail.com>
	<CAEJYa-R87JdeYg521toKf=wZR74e_W3pGXJKDsajhy9=E2CqXw@mail.gmail.com>
	<CAJ-VmomyKJujpp56_JYnRogj4OONp_kCG18aQ17=W1aeMHg6Ug@mail.gmail.com>
	<CAEJYa-QhFYqO6Y_7+kO-NvugYR7XvGOUZaF86iqq2OqWciS+UQ@mail.gmail.com>
Date: Mon, 26 Mar 2012 03:05:17 -0700
Message-ID: <CAJ-VmonAUuawBYAcfQA2w7P43fJT7n0Yggdr-cs6yrvymt4isA@mail.gmail.com>
From: Adrian Chadd <adrian.chadd@gmail.com>
To: Lytochkin Boris <lytboris@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>
Subject: Re: [ath][CURRENT] Triangle-shaped network performance
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: Mon, 26 Mar 2012 10:05:18 -0000

On 25 March 2012 23:03, Lytochkin Boris <lytboris@gmail.com> wrote:

>> 10 beacons a second is fine. 100 beacons a second ?
> bintval = 1000 is 1 beacon per second. Actually I was sure that Cisco
> AP have this setting at 3k.

Hm. Weird. 1 a second seems a bit infrequent. I'm not sure what/why
this is a problem. I haven't really thought about it.. :)


>> That almost feels like some weird interrupt handling issue.
> Any ideas how to proove this theory?

Not immediately, no. I'd start by enabling interrupt debugging and see
how often RX/TX completion interrupts are coming in.


Adrian