From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x229.google.com (mail-lj1-x229.google.com [IPv6:2a00:1450:4864:20::229]) (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 2DF863B2A4 for ; Fri, 10 Aug 2018 19:16:00 -0400 (EDT) Received: by mail-lj1-x229.google.com with SMTP id p6-v6so8347689ljc.5 for ; Fri, 10 Aug 2018 16:16:00 -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=HMrEysbeDz1NbI4xba1mHRbr86xPmM5raqRmNEf4qlY=; b=NUrLZScdJE/7jj+RxHxaCK5k97V3t9vpZW0rNVmIz6IHAI39O2P9CFUgbezOfvqhPz 42YL2HJJ+vRaaeDJBv9BHO1RMQd1i2zT9hqcpNNwERktEeBTJt6Hp3A1VBA+79WngD7d X6vkSkDg0LTowTd+ce7I2n+74wqjGUnsVcgJ8U5fky/+FY9D/U4nZBdfKzmcHmbFeUMN ijkDB5T7L8hph+5lRUTYpqVCikeQsWeERMtt157FL37N75vxO/pKGlzmhxiovl3JhG8Z 2z/DS9NoSm+q+TZl0j1uNRoSIfLbLvObT2LOdSJ07SIXSYPk7rqPSbIBrabFLWSxHYaw xYFw== 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=HMrEysbeDz1NbI4xba1mHRbr86xPmM5raqRmNEf4qlY=; b=Lq6AmnuqKGilzjmzqvCQcnpRR5XEdJfzzsJFn2K8Hv94fwJGw9raIpyv/Mpe+A4StF xL8PTZYGH7Kc6Qxr/vaRmGE1zqKKec34k6+MsTUYA3Kb/SA5EfbTzpRzkCNNqBI5npY/ LbN2ZZdPKUX01eMbZTKLZYtTIuPamagWu1C6n8Ju8IylKpiNfwJijRIx20Jwsvjn7Xu7 lRrLIFxNT3ntPBCmWP1mTCQMn+nImwa3i2Q8zWJUnbW+GYbcRjFsQp1fDdSHvu1GvMia B7ULJCpzgXJzaFg1N2mo1LP2A03Zo2QmP3fIk+nzP+g/QSm0I89fccbxCAmPXL+x+uds MgAA== X-Gm-Message-State: AOUpUlGzUpyabrMowylMAjfOFLfm3I9bhFfKgkvK8/WdVfaczeOXR4Lp xRP+5BSz2TGYhRRGJIvYmBs= X-Google-Smtp-Source: AA+uWPyDRFuAAtk9ivElescrixtxRvKztfqQwsvydJB46376PYvVe3H263w15Ep0zWkv6pApZ8ilAA== X-Received: by 2002:a2e:9c0f:: with SMTP id s15-v6mr4923110lji.97.1533942959124; Fri, 10 Aug 2018 16:15:59 -0700 (PDT) Received: from jonathartonsmbp.lan (83-245-238-47-nat-p.elisa-mobile.fi. [83.245.238.47]) by smtp.gmail.com with ESMTPSA id c83-v6sm2123772lfg.18.2018.08.10.16.15.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 10 Aug 2018 16:15:58 -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: Sat, 11 Aug 2018 02:15:56 +0300 Cc: bloat Content-Transfer-Encoding: quoted-printable Message-Id: <3467833D-B3E4-4D14-80E6-EA8A2C2867F7@gmail.com> References: To: Rosen Penev X-Mailer: Apple Mail (2.3445.9.1) Subject: Re: [Bloat] Flow offload's impact on bufferbloat 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: Fri, 10 Aug 2018 23:16:00 -0000 > On 11 Aug, 2018, at 2:12 am, Rosen Penev wrote: >=20 > OpenWrt has backported Netfilter's flow offload functionality from > kernel 4.17 to 4.14. I've been noticing higher speeds as well as > higher latency with it enabled. Anyone have any insight? My test > results are here: >=20 > On: http://www.dslreports.com/speedtest/37007587 > Off: http://www.dslreports.com/speedtest/37007494 >=20 > Note the latencies. The latencies you're seeing there have nothing to do with the offload = engine. You are bufferbloated in both cases, and apparently without = effective mitigation in either direction. - Jonathan Morton