From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-da0-x236.google.com (mail-da0-x236.google.com [IPv6:2607:f8b0:400e:c00::236]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id EBFEF21F11C for ; Wed, 24 Apr 2013 08:49:06 -0700 (PDT) Received: by mail-da0-f54.google.com with SMTP id s35so947475dak.27 for ; Wed, 24 Apr 2013 08:49:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:message-id:subject:from:to:cc:date:in-reply-to :references:content-type:x-mailer:content-transfer-encoding :mime-version; bh=YJOVExHzhyeMU8gqlIEDXfSA26aTJKwtqBZNT5zyAWQ=; b=EIeZuPPe0flhV13UIIqYAktYKCC2usvwkf+5S7VJfwtl9tW/Qgp7cnCi8IcslWvF70 Vyhxm4EwrJmpW0Toz0H0n3b+9dKCsQDRa2QRNbuUltJ58foAH3nmbhDOuDFjSn2yKbe+ GAr6pRNiSKnN7UZckbRHwRskbxN2clNA/8IjSIb4msYDa0LE37yfrty5NY50Jke0mHN8 oCEtwqUTSKQ0F0sVCvFyTTiAWtbrxHOlXnTuDO7j+cRUeqLtl0gIoir46kJl5vnmEGP5 X231wBfVfOQejQZhiQRSECcDdVSwQmUWJnyzO2+vNzRGu4r6tr1NJAAcJtI8dUJC6FXV 50HQ== X-Received: by 10.68.95.133 with SMTP id dk5mr47881948pbb.171.1366818546591; Wed, 24 Apr 2013 08:49:06 -0700 (PDT) Received: from [172.26.50.178] ([172.26.50.178]) by mx.google.com with ESMTPSA id l4sm3531043pbo.6.2013.04.24.08.49.05 for (version=SSLv3 cipher=RC4-SHA bits=128/128); Wed, 24 Apr 2013 08:49:05 -0700 (PDT) Message-ID: <1366818544.8964.73.camel@edumazet-glaptop> From: Eric Dumazet To: Dave Taht Date: Wed, 24 Apr 2013 08:49:04 -0700 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Cc: iccrg@irtf.org, tsvwg@ietf.org, bloat , aqm@ietf.org Subject: Re: [Bloat] Fixes to Linux's network stack in kernels 3.9 and 3.10 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: Wed, 24 Apr 2013 15:49:07 -0000 On Wed, 2013-04-24 at 02:19 -0700, Dave Taht wrote: > There are a really large string of network related fixes going into > the next two Linux kernels (3.9 and 3.10), in light of extensive tcp > and bufferbloat related analyses at google. > > Two of the most important (at least to my eye) are: > > http://marc.info/?l=linux-netdev&m=136241595507566&w=2 > > and > > http://marc.info/?l=linux-netdev&m=136392337900604&w=2 This one is definitely a must have for people using TSO or GSO We are experimenting other fixes on this area. > > Three more caught my eye as I was poking through the commit histories: > > http://marc.info/?l=linux-netdev&m=136382407631873&w=2 > > http://marc.info/?l=linux-netdev&m=136639199530624&w=2 > > http://marc.info/?l=linux-netdev&m=136580231922814&w=2 > > And that's just the tip of the iceberg! > > I expect to have to rerun a ton of benchmarks as a result of these > changes, and to have to throw out a lot of older data. Please plan on > having to do the same after these kernels are released.... > >