From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ig0-x22a.google.com (mail-ig0-x22a.google.com [IPv6:2607:f8b0:4001:c05::22a]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 7491121F36A for ; Thu, 23 Apr 2015 07:10:58 -0700 (PDT) Received: by igbyr2 with SMTP id yr2so24732710igb.0 for ; Thu, 23 Apr 2015 07:10:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:subject:from:to:cc:date:in-reply-to:references :content-type:mime-version:content-transfer-encoding; bh=UkzJnmQfhNbMrFCdFMOBVpJEzHnLejhoD0gB2fuNwgk=; b=iYH+kLxw8QJeKyk45hz2E5kLBypayh1ZVtel/2k5Lp6wAb2k0OylBGQFw4SFIOG2l/ Ny6PTHzJg7Hmi/MEKfdB+rHPEtUUEE8juRIm0Iyp+3QWMG/la7k1lTY0NKpqGxktCWgJ hSPgkVwiBsXrVBLBE4UtwTt2g/xZDWmN21n/B91y/kLfVN3Bc7YHscH73rncsqm8cXzK ndqcR1eccDSrSQDfZzidz43tInIT4frkNb3ld4Hplejs5GneEnX/0fKdhhKHAXUaszqK eC0QXFM3VLvF3iFx0AXrRv6uyD5F+JEnM3GR4K0fUrnKiLDF/UG3oEgVdsMzNX9ic4E1 isfg== X-Received: by 10.43.18.194 with SMTP id qh2mr3900724icb.36.1429798256951; Thu, 23 Apr 2015 07:10:56 -0700 (PDT) Received: from [172.26.55.207] ([172.26.55.207]) by mx.google.com with ESMTPSA id ys3sm5481343igb.4.2015.04.23.07.10.55 (version=TLSv1.2 cipher=AES128-GCM-SHA256 bits=128/128); Thu, 23 Apr 2015 07:10:56 -0700 (PDT) Message-ID: <1429798255.22254.48.camel@edumazet-glaptop2.roam.corp.google.com> From: Eric Dumazet To: renaud sallantin Date: Thu, 23 Apr 2015 07:10:55 -0700 In-Reply-To: References: <2C987A4B-7459-43C1-A49C-72F600776B00@gmail.com> <14cd9e74e48.27f7.e972a4f4d859b00521b2b659602cb2f9@superduper.net> <20150422040453.GB36239@sesse.net> <1429676935.18561.42.camel@edumazet-glaptop2.roam.corp.google.com> <12383_1429692679_55376107_12383_9099_1_p7gmr0psut68sen0sao8o4lp.1429692550899@email.android.com> <1429710657.18561.68.camel@edumazet-glaptop2.roam.corp.google.com> <25065_1429716388_5537BDA4_25065_2328_1_63pyislbvtjf653k3qt8gw2c.1429715929544@email.android.com> <1429717468.18561.90.camel@edumazet-glaptop2.roam.corp.google.com> <5537CDB7.60301@orange.com> <1429722979.18561.112.camel@edumazet-glaptop2.roam.corp.google.com> <5537DA20.1090008@orange.com> <5537DE4D.8090100@orange.com> <553882D7.4020301@orange.com> <1429771718.22254.32.camel@edumazet-glaptop2.roam.corp.google.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Cc: bloat Subject: Re: [Bloat] DSLReports Speed Test has latency measurement built-in 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: Thu, 23 Apr 2015 14:11:30 -0000 On Thu, 2015-04-23 at 12:17 +0200, renaud sallantin wrote: > Hi, > ... > > We did an extensive work on the Pacing in slow start and notably > during a large IW transmission. > > Benefits are really outstanding! Our last implementation is just a > slight modification of FQ/pacing > * Sallantin, R.; Baudoin, C.; Chaput, E.; Arnal, F.; Dubois, E.; > Beylot, A.-L., "Initial spreading: A fast Start-Up TCP > mechanism," Local Computer Networks (LCN), 2013 IEEE 38th > Conference on , vol., no., pp.492,499, 21-24 Oct. 2013 > * Sallantin, R.; Baudoin, C.; Chaput, E.; Arnal, F.; Dubois, E.; > Beylot, A.-L., "A TCP model for short-lived flows to validate > initial spreading," Local Computer Networks (LCN), 2014 IEEE > 39th Conference on , vol., no., pp.177,184, 8-11 Sept. 2014 > draft-sallantin-tcpm-initial-spreading, safe increase of the TCP's IW > Did you consider using it or something similar? Absolutely. We play a lot with these parameters, but the real work is on CC front now we have correct host queues and packet scheduler control. Drops are no longer directly correlated to congestion on modern networks, cubic has to be replaced.