From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it1-x129.google.com (mail-it1-x129.google.com [IPv6:2607:f8b0:4864:20::129]) (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 B5FE53CB35; Mon, 27 May 2019 11:21:24 -0400 (EDT) Received: by mail-it1-x129.google.com with SMTP id m141so27367668ita.3; Mon, 27 May 2019 08:21:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=h6cjh+oxU+aRYYViTI5yFb7rEntLi8mEsgobNHWAnjU=; b=WuPTkLnfRSIZTEUZo3WxlFD5w3KE349Wz3UJ7aSUeLvH5kv2M3vCJEsuEACbOKuaOk ui14pF7mWfKnNm79WZHSmtkNoOpAxpeVVZdW+RluIQC3vVYbJozPHCB4GdjzGDLJYGp7 hoDJdTgDXBWSc7BhZmldO6zev8AC7ulYexin3O27GnezOLwixuTE7cNUhdmd/kVrF6qT IbMisORpd2dNlipD0Yg9wwHPnZYreYI2+QGgIknKRk2sjiequVmiApfZ9VY1trgyb+gK POF3ICebrbQqEKzeSrYxoLRtL/y6p5tZFbvgH/FI3OjYtLeyGjbi5UPcOlS9IEKD78sW TKOQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to :content-transfer-encoding; bh=h6cjh+oxU+aRYYViTI5yFb7rEntLi8mEsgobNHWAnjU=; b=bD4oxETDDaLkTkBx7X6KhMJpWa8bMUJBMkxSN1rSyl/wCebeZIJuRJX4tCyLYmMJUC qrv/XiQSf8RAdaYXcfKrLfLG9r6ZswM4Ryx8XiVvjCCsyUzKMgo9w55vl7uw+2x+1ehn e9IjvrRsdNZxXj6NvAtyHlRiRXNHHVzBtrF1hbSbzFkYlNtx10IbTpLVUzVwm8ReameH bEc1ZKQDVAVvPhdC5+Ak91+AE78d5W1rkorYbdmsKdDX+8vzzxZsSVQbXsxNchBImasw X87VLzTderSMyYUgtqSOgZEn4sbsXSpr0Q9c4zxRBpkeEDL2qOwRwu1S+wQRRrVKbOfY rwDw== X-Gm-Message-State: APjAAAX9YnBupDNj041rFiPL+0kKH+zKvoJKbPWECQ4qU+1zUj268Cr0 R8QjJW/UNRtb/oDh60TVuz1E1I79IV+zFm1uyj9bSu9d X-Google-Smtp-Source: APXvYqztQJd0vLrplUxQxONsFoNwx5M97pD+HW4D3Enxa8gkNsR8mienyE1IbsmHK4UaC/XMz1wLXfFP54VN75q3TDM= X-Received: by 2002:a24:47c2:: with SMTP id t185mr25215160itb.97.1558970483898; Mon, 27 May 2019 08:21:23 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Mon, 27 May 2019 08:21:11 -0700 Message-ID: To: ECN-Sane , bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Bloat] containers and network namespaces 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: Mon, 27 May 2019 15:21:24 -0000 While in barcelona, I went to the *enormous* containercon conference, 5000+ attendance, tons and tons of people using docker, and I learned for the first time the enormous size of the kubernetes deployment. The website claims several billion containers are run every week, which I do not doubt (how many are in active use at any one time would be a good number to get) So I sat down and said... hmmm... what if I had a netperf/irtt container I could toss around for testing bufferbloat issues? It's not clear to me, either, how often network namespaces are used in the field(?) out of that billions deployment, but here a few months back, I had showed the issues network namespaces had (at that point in time) with self-congesting on overload: https://github.com/systemd/systemd/issues/9725#issuecomment-413369212 Anyway, if anyone here has any data or has ever setup a container for bufferbloat work, and wants to share? I put the same question up over on their website, here: https://discuss.kubernetes.io/t/self-congestion-fq-codel-bufferbloat-networ= k-namespaces-and-containers/6533 If there's a better place to ask the question, please let me know? --=20 Dave T=C3=A4ht CTO, TekLibre, LLC http://www.teklibre.com Tel: 1-831-205-9740