From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from masada.superduper.net (unknown [IPv6:2001:ba8:1f1:f263::2]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by huchra.bufferbloat.net (Postfix) with ESMTPS id 01C0D21F0B0 for ; Tue, 26 Feb 2013 11:25:39 -0800 (PST) Received: from snappy-wlan.parc.xerox.com ([13.1.108.21]) by masada.superduper.net with esmtpsa (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1UAQ9g-0008Km-U9; Tue, 26 Feb 2013 19:25:37 +0000 Message-ID: <512D0C2E.2020205@superduper.net> Date: Tue, 26 Feb 2013 11:25:34 -0800 From: Simon Barber User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-Version: 1.0 To: Eric Dumazet References: <1361904513.11403.9.camel@edumazet-glaptop> In-Reply-To: <1361904513.11403.9.camel@edumazet-glaptop> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -2.9 (--) Cc: bloat Subject: Re: [Bloat] Testing fq_codel on Android Galaxy Nexus AK kernel X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Feb 2013 19:25:40 -0000 What is the interface to these 3G modems? Is there a 'packet has been transmitted' ACK that could be used to implement a BQL (or better still - time queue limit)? Simon On Tue 26 Feb 2013 10:48:33 AM PST, Eric Dumazet wrote: > On Tue, 2013-02-26 at 20:27 +0200, Jonathan Morton wrote: >> Since the phone only has control of the bottleneck in the upload >> direction, a browse + upload or ping + upload or VoIP + upload test >> would be appropriate. It's important to control the link speed as much >> as possible to be the same for equivalent tests, and to try several >> different network conditions. >> >> Tests involving heavy downlink traffic would measure bloat at the cell >> tower, or at the ISP or access point for wifi tests. > > I have serious doubts this will show something. > > I guess the queue of not yet sent packets will be _after_ qdisc layer, > in the network device itself. > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat