From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-32-ewr.dyndns.com (mxout-088-ewr.mailhop.org [216.146.33.88]) by lists.bufferbloat.net (Postfix) with ESMTP id 6C00F2E0044 for ; Mon, 21 Mar 2011 07:45:18 -0700 (PDT) Received: from scan-31-ewr.mailhop.org (scan-31-ewr.local [10.0.141.237]) by mail-32-ewr.dyndns.com (Postfix) with ESMTP id BFD3F6F71B4 for ; Mon, 21 Mar 2011 14:45:17 +0000 (UTC) X-Spam-Score: 0.1 () X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 75.145.127.229 Received: from gw.co.teklibre.org (75-145-127-229-Colorado.hfc.comcastbusiness.net [75.145.127.229]) by mail-32-ewr.dyndns.com (Postfix) with ESMTP id 18F8C6F95A6 for ; Mon, 21 Mar 2011 14:45:13 +0000 (UTC) Received: from cruithne.co.teklibre.org (unknown [IPv6:2002:4b91:7fe5:1::20]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "cruithne.co.teklibre.org", Issuer "CA Cert Signing Authority" (verified OK)) by gw.co.teklibre.org (Postfix) with ESMTPS id 7DFBC5E899 for ; Mon, 21 Mar 2011 08:45:12 -0600 (MDT) Received: by cruithne.co.teklibre.org (Postfix, from userid 1000) id F2BB112088B; Mon, 21 Mar 2011 08:45:10 -0600 (MDT) From: d@taht.net (Dave =?utf-8?Q?T=C3=A4ht?=) To: bloat-devel@lists.bufferbloat.net Subject: debloat-testing loadlatency test Organization: Teklibre - http://www.teklibre.com Date: Mon, 21 Mar 2011 08:45:10 -0600 Message-ID: <87wrjsbki1.fsf@cruithne.co.teklibre.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-BeenThere: bloat-devel@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Developers working on AQM, device drivers, and networking stacks" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Mar 2011 14:45:18 -0000 Moving this convo to bloat-devel to reduce the noise level. I got my somewhat debloated network up late last night and fired off the Path: openrd <-> wndr3700 <-> davepc With loadlatency. The wndr3700 has the buffer size in the ath9k driver reduced to a depth of 3, TX_RETRIES of 4, txqueuelen of 2, and davepc is using debloat-testing with the iwllagn driver, txqueuelen of 4. The two devices connect at 36Mbit, however. The conditions of this test are (purposely) poor, the two wireless devices are separated by 3 floors, and 2 concrete walls. In other (iperf related) testing I've seen 13% packet loss on ping. Scenario 1: 0 uploads, 1 downloads... 2101 KiB/s down, 4.07 Hz smoothness Scenario 2: 1 uploads, 0 downloads... 1614 KiB/s up, 4.50 Hz smoothness Scenario 3: 0 uploads, 2 downloads... 2106 KiB/s down, 0.04 Hz smoothness Scenario 4: 1 uploads, 1 downloads... 345 KiB/s up, 1604 KiB/s down, 0.07 Hz smoothness Scenario 5: 2 uploads, 0 downloads... 1661 KiB/s up, 0.14 Hz smoothness Scenario 6: 0 uploads, 3 downloads... 2100 KiB/s down, 0.04 Hz smoothness Scenario 7: 1 uploads, 2 downloads... 244 KiB/s up, 1822 KiB/s down, 0.02 Hz smoothness Scenario 8: 2 uploads, 1 downloads... 553 KiB/s up, 1419 KiB/s down, 0.04 Hz smoothness Scenario 9: 3 uploads, 0 downloads... 1672 KiB/s up, 0.15 Hz smoothness Scenario 10: 0 uploads, 4 downloads... 1845 KiB/s down, 0.01 Hz smoothness Scenario 11: 1 uploads, 3 downloads... 186 KiB/s up, 1861 KiB/s down, 0.05 Hz smoothness Scenario 12: 2 uploads, 2 downloads... 388 KiB/s up, 1630 KiB/s down, 0.04 Hz smoothness Scenario 13: 3 uploads, 1 downloads... 744 KiB/s up, 1234 KiB/s down, 0.09 Hz smoothness Scenario 14: 4 uploads, 0 downloads... 1697 KiB/s up, 0.07 Hz smoothness Scenario 15: 0 uploads, 32 downloads... 1982 KiB/s down, 0.00 Hz smoothness Scenario 16: 1 uploads, 31 downloads... 51 KiB/s up, 1810 KiB/s down, 0.00 Hz smoothness Scenario 17: 16 uploads, 16 downloads... ^C real 416m30.222s user 3m3.230s sys 25m41.070s I aborted the test when I got up this morning. -- Dave Taht http://nex-6.taht.net