From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-34-ewr.dyndns.com (mxout-159-ewr.mailhop.org [216.146.33.159]) by lists.bufferbloat.net (Postfix) with ESMTP id 703142E0134 for ; Fri, 25 Feb 2011 08:19:51 -0800 (PST) Received: from scan-32-ewr.mailhop.org (scan-32-ewr.local [10.0.141.238]) by mail-34-ewr.dyndns.com (Postfix) with ESMTP id 066F070BB55 for ; Fri, 25 Feb 2011 16:19:34 +0000 (UTC) X-Spam-Score: -1.0 (-) X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 209.85.214.43 Received: from mail-bw0-f43.google.com (mail-bw0-f43.google.com [209.85.214.43]) by mail-34-ewr.dyndns.com (Postfix) with ESMTP id 199C370B64B; Fri, 25 Feb 2011 16:19:28 +0000 (UTC) Received: by bwz14 with SMTP id 14so2620907bwz.16 for ; Fri, 25 Feb 2011 08:19:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:subject:from:to:cc:in-reply-to:references :content-type:date:message-id:mime-version:x-mailer :content-transfer-encoding; bh=+Y8aYNLC/ub/1RJnylAWy6AK6lLqLmSecAOSMODE2Xs=; b=dqnciYFJ9h3YECHUIcEAL5oAA5GLhoqZg/V58j3zZVygoPO+L4LYbL4sC0jVFYVtT3 rJS8Cl5aPVl32ktkCExb0yX36kCX7vlpzgCFv/TONJZRbWaKQDroyfqSZkdIAyj6m5nd ojhUy3Jgm37rqFgGYilH20Ok36ErzTbvhzWpA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=dBmqYhUeW0kpR4GcWcbi3s2df4d6TycCaWSpDcC824uIMqwUnFbtXKbrJD42/RghXy 6IjfljMOXtXygJfkTTQuz95RvdfBamREpA10rGEmG5B5xSMvLmDoF8ief+56VWreG7aP VumGSzkGH8nTw6p3jRk2yF+BHoyEivJzV3Spk= Received: by 10.204.71.141 with SMTP id h13mr2293063bkj.180.1298650768308; Fri, 25 Feb 2011 08:19:28 -0800 (PST) Received: from [10.150.51.210] (gw0.net.jmsp.net [212.23.165.14]) by mx.google.com with ESMTPS id b6sm532384bkb.10.2011.02.25.08.19.26 (version=SSLv3 cipher=OTHER); Fri, 25 Feb 2011 08:19:27 -0800 (PST) From: Eric Dumazet To: Jesper Dangaard Brouer In-Reply-To: <1298648937.28000.41.camel@traveldev.cxnet.dk> References: <4D6668F4.5010705@freedesktop.org> <4D668827.8060508@freedesktop.org> <1298567313.2814.7.camel@edumazet-laptop> <87sjvds2r7.fsf@cruithne.co.teklibre.org> <1298575769.2659.10.camel@edumazet-laptop> <1298632912.21810.33.camel@traveldev.cxnet.dk> <1298634859.2659.44.camel@edumazet-laptop> <1298648937.28000.41.camel@traveldev.cxnet.dk> Content-Type: text/plain; charset="UTF-8" Date: Fri, 25 Feb 2011 17:19:22 +0100 Message-ID: <1298650762.2659.74.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 8bit Cc: Van Jacobson , bloat-devel@lists.bufferbloat.net, herbert@gondor.apana.org.au, bloat@lists.bufferbloat.net Subject: Re: [Bloat] GSO (was: Please enter issues into the issue tracker - Issue system organisation needed) 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: Fri, 25 Feb 2011 16:19:51 -0000 Le vendredi 25 février 2011 à 16:48 +0100, Jesper Dangaard Brouer a écrit : > > > I'm wondering if LRO (Large-Receive-Offload) affect you, when you are > > > using SFQ on ingress? > > > > > > > > > > GRO/LRO can have an impact, for sure. But most 'current' kernels dont > > have GRO/LRO by default. I mean, kernels in use by 2-3 years old > > distros. > > Hmm, are you sure? > The speed test server runs Debian Lenny and kernel 2.6.26-2-686, and had > GSO enabled... I am sure about GRO (Receive) side. It was mostly disabled on old kernels. Only very recently we switched it ON.