From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com [IPv6:2607:f8b0:400e:c00::243]) (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 F30013B25E for ; Fri, 21 Oct 2016 07:40:15 -0400 (EDT) Received: by mail-pf0-x243.google.com with SMTP id s8so8460298pfj.2 for ; Fri, 21 Oct 2016 04:40:15 -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 :mime-version:content-transfer-encoding; bh=icUypAPLGvN9y+OAKXWz4saiJnPCBV8taDF7WWoIuAk=; b=PAy4DsZpZpWDts15Fks6M1R4Ndpv1L/08O/5NLnHUj07yvVeh8g1mJvJmWk9pde2iO o1CvtA6i1nJTklsz8KbIuVcsvfAoMy9jYpWYZWDkmoVYBM7bG6WFp0LLXAD2E/6GvIwy n8AjP4A/ioGwBp4XayvXX6pjDL0O2XT/zvPgM/1S0bcpwbHHssFvLjOjHTCZbuC0t8+m 5V6yRG5bqYOHCOAdPl+OpDJivS53e8Zb7GJkd3FtK67pJp22fa24flkCu+ifhhkoVbAv HNLqo+27B9kbLSkqeec6Oqr5VAF46joP23dCHmBVrHWCbZiGxM+uromtjfyGkJU7JsUR 3alQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=icUypAPLGvN9y+OAKXWz4saiJnPCBV8taDF7WWoIuAk=; b=TwyW7pG8m/RgHXe4PYKnQxcr9zIxFxDcTKhFPLUAhYE9EA2LtZo9ZSbanJOCrwwsTP zhKMcOEd8UxxMk4CiJ1DDB1onNhFbmDp6c4wpoadsEgFJUelJlNTAmOZCVa0kVgfCYzl pohBz/vsN/aMejS+ycGPT7oV6KGFo1kMZic7saWiuHdd+ErjmHiEbm4Ec2b25r+EtaEG JJxQRyv+KdzcIbManSue/Y1Q9SjVgXria4bh+I/XtKtOa0/pgOnVMWWmtbHz91Ea0wH+ zOrjoH7Q96BuhoziHhJfFTx33kYXHg2MENPZ7K8vtx8fYtyNmmJObI91FXnNKe6G7B1d hzcA== X-Gm-Message-State: ABUngvfITQ8t55YFAoJGs25Ra8rRQG5CKBUFWKrNh0BbeszXxuVxQwRmo4/LWQi27KHWbQ== X-Received: by 10.99.123.94 with SMTP id k30mr650478pgn.153.1477050015064; Fri, 21 Oct 2016 04:40:15 -0700 (PDT) Received: from [172.29.162.254] ([172.29.162.254]) by smtp.googlemail.com with ESMTPSA id o85sm4624208pfj.15.2016.10.21.04.40.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Oct 2016 04:40:14 -0700 (PDT) Message-ID: <1477050013.7065.57.camel@edumazet-glaptop3.roam.corp.google.com> From: Eric Dumazet To: "Steinar H. Gunderson" Cc: bloat Date: Fri, 21 Oct 2016 04:40:13 -0700 In-Reply-To: <20161021110333.GC35316@sesse.net> References: <20161021084726.GA1913@sesse.net> <1477045681.7065.43.camel@edumazet-glaptop3.roam.corp.google.com> <20161021104217.GA35316@sesse.net> <1477047144.7065.45.camel@edumazet-glaptop3.roam.corp.google.com> <20161021110333.GC35316@sesse.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [Bloat] "BBR" TCP patches submitted to linux kernel 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, 21 Oct 2016 11:40:16 -0000 On Fri, 2016-10-21 at 13:03 +0200, Steinar H. Gunderson wrote: > On Fri, Oct 21, 2016 at 03:52:24AM -0700, Eric Dumazet wrote: > > Ok, you could try 12 MB instead of 8MB to eventually reach line rate. > > > > net/ipv4/tcp_rmem = 4096 873814 12000000 > > net/ipv4/tcp_wmem = 4096 873814 12000000 > > No difference, really. (I tried increasing both at the server and the > client.) > > FWIW, this is over the public Internet, including one 10 -> 1 Gbit/sec > downconversion somewhere. I can't guarantee there's actually a full gigabit > of bandwidth free along the path. Yet it looks like they are few drops on this link, which is nice ;)