From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-12-iad.dyndns.com (mxout-085-iad.mailhop.org [216.146.32.85]) by lists.bufferbloat.net (Postfix) with ESMTP id E134A2E015C for ; Fri, 11 Mar 2011 19:19:22 -0800 (PST) Received: from scan-12-iad.mailhop.org (scan-12-iad.local [10.150.0.209]) by mail-12-iad.dyndns.com (Postfix) with ESMTP id 32444370CCC for ; Sat, 12 Mar 2011 03:19:22 +0000 (UTC) X-Spam-Score: 0.0 () X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 64.59.134.9 Received: from idcmail-mo2no.shaw.ca (idcmail-mo2no.shaw.ca [64.59.134.9]) by mail-12-iad.dyndns.com (Postfix) with ESMTP id 8327C3709C7 for ; Sat, 12 Mar 2011 03:19:21 +0000 (UTC) Received: from pd5ml1no-ssvc.prod.shaw.ca ([10.0.153.166]) by pd6mo1no-svcs.prod.shaw.ca with ESMTP; 11 Mar 2011 20:19:20 -0700 X-Cloudmark-SP-Filtered: true X-Cloudmark-SP-Result: v=1.1 cv=37qdrPIVUooonMxFi2BWZ8DhoCRe+hJcgJuumZcJ4K8= c=1 sm=1 a=b28nCewJ6d8A:10 a=BLceEmwcHowA:10 a=wPDyFdB5xvgA:10 a=xqWC_Br6kY4A:10 a=5cEFxojLHbSazGx3ptQdfQ==:17 a=kurRqvosAAAA:8 a=3dZX8JWgAAAA:8 a=b7SLfKwVAAAA:8 a=vslnk05qy3dwJVPubUUA:9 a=B_Ng6iak-N1U50pJqRYA:7 a=Fg0L7XFKQk9wSccVZkPKTNaa194A:4 a=Fw8iwiUKpeAA:10 a=TphoKWqS9HQA:10 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 Received: from unknown (HELO amd.pacdat.net) ([96.48.80.31]) by pd5ml1no-dmz.prod.shaw.ca with ESMTP; 11 Mar 2011 20:19:20 -0700 Received: from localhost ([::1]) by amd.pacdat.net with esmtp (Exim 4.69) (envelope-from ) id 1PyFMN-0007kM-UB; Fri, 11 Mar 2011 19:19:20 -0800 From: richard To: Jonathan Morton In-Reply-To: <16808EAB-2F52-4D32-8A8C-2AE09CD4D103@gmail.com> References: <16808EAB-2F52-4D32-8A8C-2AE09CD4D103@gmail.com> Content-Type: text/plain Date: Fri, 11 Mar 2011 19:19:19 -0800 Message-Id: <1299899959.1835.10.camel@amd.pacdat.net> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 (2.26.3-1.fc11) Content-Transfer-Encoding: 7bit X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- Cc: bloat@lists.bufferbloat.net Subject: Re: [Bloat] Measuring latency-under-load consistently 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: Sat, 12 Mar 2011 03:19:23 -0000 On Sat, 2011-03-12 at 02:00 +0200, Jonathan Morton wrote: snip > 3) Flow smoothness, measured as the maximum time between sequential received data for any continuous flow, also expressed in Hz. This is an important metric for video and radio streaming, and one which CUBIC will probably do extremely badly at if there are large buffers in the path (without AQM or Blackpool). > Am I correct that your "Flow smoothness" is the inverse if jitter? We should probably keep to a standard nomenclature. What should we call this and/or should we call it something else or invert the concept and call it what we already do - jitter? richard > Any thoughts on this idea? > > - Jonathan > > _______________________________________________ > Bloat mailing list > Bloat@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/bloat -- Richard C. Pitt Pacific Data Capture rcpitt@pacdat.net 604-644-9265 http://digital-rag.com www.pacdat.net PGP Fingerprint: FCEF 167D 151B 64C4 3333 57F0 4F18 AF98 9F59 DD73