From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from resqmta-po-10v.sys.comcast.net (resqmta-po-10v.sys.comcast.net [IPv6:2001:558:fe16:19:96:114:154:169]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id CE66D3B29E for ; Sat, 25 Apr 2020 11:38:25 -0400 (EDT) Received: from resomta-po-11v.sys.comcast.net ([96.114.154.235]) by resqmta-po-10v.sys.comcast.net with ESMTP id SKwwjJdT1RZZzSMsqjl1ej; Sat, 25 Apr 2020 15:38:24 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcastmailservice.net; s=20180828_2048; t=1587829104; bh=kNPaDk+V+ie+0WM9CuuLMJuUyNrOb0+yiZGRndfwxNM=; h=Received:Received:Received:Subject:To:From:Message-ID:Date: MIME-Version:Content-Type; b=pISuASFOo74wFpfmQBzFSx0WkOQem7o1os7hteGvOAHdaJG9OqXG16gqpvquWMf9d 0RuoFTInV6wZMybTL6RB1Z074uJLp/SHLLmSUoCA370XSZwZWLRTn78s+3J4w6bG04 AnfHym455GM5fzy3blmT9JQJzY4ydYEqrW/9smP0D6hKSIQI5VCp8Bpep8rw8+u4NP xJYjRo8SyeVl2OpPWF4iGbnCXNZImZ6VhdEos0xiefmtbgAVQAUnNb4rqv7Tp9TvCE 50WwCqLHkNaJQVt6ZMwDLBNvGVFd7fA0zpEvbhoCZUR8NeNhde1xLcRtkAuHr7E8tN mixvodYZCCzLQ== Received: from home.sewingwitch.com ([IPv6:2601:644:1:6c10::3f1]) by resomta-po-11v.sys.comcast.net with ESMTPA id SMspjPT2f4LPNSMsqjcpM3; Sat, 25 Apr 2020 15:38:24 +0000 X-Xfinity-VMeta: sc=0.00;st=legit Received: from [10.96.7.39] ([10.96.7.39]) (authenticated bits=0) by home.sewingwitch.com (8.14.7/8.14.7) with ESMTP id 03PFcIVK026837 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Sat, 25 Apr 2020 08:38:18 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 home.sewingwitch.com 03PFcIVK026837 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sewingwitch.com; s=default; t=1587829099; bh=kNPaDk+V+ie+0WM9CuuLMJuUyNrOb0+yiZGRndfwxNM=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=jPIUMpahWCA4ph6QQQg38cirBYvNKCIjNPcwiAhyHQjryAFZ9haFgd6kE9Av1h97f vWP2vJSJJmaPzrVhK0TfNYaJw698ehAKrWzY8dkG44J7wMNwi9/+LkW+Dl1EZBNRHS AujsHnPWd6CtM9b/eW+6qSeTJye9uLgbfgqbkydU= To: Jonathan Morton Cc: bloat@lists.bufferbloat.net References: <431A84397F3D9C1EB097BCCE@[172.27.17.193]> <6F1F3C646A7DFD2CC8C9E79E@172.27.17.193> <0B51625096F92AF18CD397D9@[172.27.17.193]> <8f4566dd-def0-cd97-45db-577784f90efd@sewingwitch.com> <9FDDBB5C-68CF-45B1-85D8-3A7BD6CB9F31@gmail.com> <3D2F4A70BAB1774D1EFDC641@[172.27.17.193]> <025E1E0E1D49D3C95FFD4035@[172.27.17.193]> <03E39523-C125-4A03-A514-30CA4E361225@gmail.com> From: Kenneth Porter Message-ID: <4fdd4de6-0bd3-a049-cf74-c0581a9988df@sewingwitch.com> Date: Sat, 25 Apr 2020 08:38:18 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <03E39523-C125-4A03-A514-30CA4E361225@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-GB X-Scanned-By: MIMEDefang 2.84 on 10.96.0.132 Subject: Re: [Bloat] this explains speedtest stuff 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: Sat, 25 Apr 2020 15:38:25 -0000 On 4/25/2020 7:19 AM, Jonathan Morton wrote: > In Linux and OSX, to make the setting persist across reboots, edit /etc/sysctl.conf. For the lurkers, CentOS (and presumably other Red Hat distros) now has an /etc/sysctl.d for vendor-specific settings. The prevents modifying package-supplied config files so that package upgrades are easier. Much of Linux seems to be moving towards this model of a config subdirectory to place overrides. I created 51-bufferbloat.conf in that directory to add the ecn setting and to select the default_qdisc.