From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 251603B29E for ; Tue, 24 Jul 2018 17:44:29 -0400 (EDT) Received: by mail-lj1-x234.google.com with SMTP id v9-v6so4886977ljk.4 for ; Tue, 24 Jul 2018 14:44:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=oORsCS1WmalegT7gw+6cHTCkP/jtGcn82A9DTWQN0Wg=; b=W5s85S0+D74+lAq4l9uVBtTcWdQRzF8lld9w17/p29RMRW2+vJGpL64RjKvMMv8Hhv o8f/I24W2tVx7iQApsiYVWfQTviH4aETsvdNCeadt8kPdu5HG/nXYpiHoBArVuJO37IF YSqoLlS0wsSqae6W6ggkksgU4p4LC9mRgbkWrXGTSlbPmv4l6wMcv0DKokN7H4Smn3FC I/Y5gtMD+aHj65eeoclnLp/uean0DCXnapZBBEerj++MLASp1Hk5IhK6Ahlx5ImOTHgg tuE9hGUohWvmyOW+puIsDvq9P9QiB7i5aHlWIOU1dTAUEnU2D9yqn9Bulp/6L0F5Zu3n TZnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to; bh=oORsCS1WmalegT7gw+6cHTCkP/jtGcn82A9DTWQN0Wg=; b=tuqo65tXyOVTXlAEDUEV217R7FO7hh9MRy3A4LGDSh7mXbiKcp+xMvkgJJWmQMYlNU H3883DX6DUwFtTcmF98biwN+jnkwhY4ZXSuWA4k14l4Aj6c87PmKI9WVDQ3Wv3jeuQYC IdhX2uN7qyXw8tNFhAqHfY5gxPjDCElLKEaDUkxzRRdQpJcMbuviC/FHAH08H6tT2NDf ZJoxiYu8wEO71jGZDWv+o5eJOR5oQ+8tjRjJz5dJw2f7Gre9WjdrXPXgFeCSw0i4oiOz j0Hy9VpVzhD+fkI3D1fpAfT3wJZ3iMnIBcRRzPUeCZB0dy7oEL2ansddKBLj2nO2mP0T bomg== X-Gm-Message-State: AOUpUlHBecxJEX5d7eCsqD1Nj8R8eMIaMNrxIcdzkdDBoJ4VP8+KH1JH IyfgYRs2EPzKKdBVbPpFCk8= X-Google-Smtp-Source: AAOMgpdvBLEy2DVhZZJaa4z1XGRIXZaN1MBcVQsi9U8eprD/92KxyvFaw/9Aidg5d/HCxiWcWhXeXg== X-Received: by 2002:a2e:9a95:: with SMTP id p21-v6mr13467591lji.60.1532468668105; Tue, 24 Jul 2018 14:44:28 -0700 (PDT) Received: from [192.168.239.216] (83-245-234-9-nat-p.elisa-mobile.fi. [83.245.234.9]) by smtp.gmail.com with ESMTPSA id y5-v6sm1903704ljj.75.2018.07.24.14.44.27 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 24 Jul 2018 14:44:27 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 11.5 \(3445.9.1\)) From: Jonathan Morton In-Reply-To: Date: Wed, 25 Jul 2018 00:44:26 +0300 Cc: Dave Taht , bloat Content-Transfer-Encoding: quoted-printable Message-Id: References: To: Benjamin Cronce X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Bloat] No backpressure "shaper"+AQM X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 Jul 2018 21:44:29 -0000 > On 25 Jul, 2018, at 12:39 am, Benjamin Cronce = wrote: >=20 > Just looking visual at the DSLReport graphs, I more normally see maybe = a few 40ms-150ms ping spikes, while my own attempts to shape can get me = several 300ms spikes. I would really need a lot more samples and = actually run the numbers on them, but just causally looking at them, I = get the sense that mine is worse. That could just be an artefact of your browser's scheduling latency. = Try running an independent ping test alongside for verification. Currently one of my machines has Chrome exhibiting frequent and very = noticeable "hitching", while Firefox on the same machine is much = smoother. Similar behaviour would easily be enough to cause such data = anomalies. - Jonathan Morton