From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ua0-x22a.google.com (mail-ua0-x22a.google.com [IPv6:2607:f8b0:400c:c08::22a]) (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 604033B29E for ; Tue, 5 Sep 2017 14:42:55 -0400 (EDT) Received: by mail-ua0-x22a.google.com with SMTP id l24so10048391uaa.5 for ; Tue, 05 Sep 2017 11:42:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=8DxYc0bSMX97nEtkMx1neNDKo6uHWvzsB7fs5VBWfYk=; b=Hu8cSVaRLQaJBpR+JLm5xx3nuPNKmR8SKssqQgVxVuLaWlnAi2ZjuKxT2CILbHiHve vnrHSyw7plKbObalBZfAmUjpVUvryPakr/9AcRsaUrYYbNglllX5KRw7/bqe3OObho67 i7Mzl+4RdyoQ9RE02MyJ6RF2s+hTvOR09CPs4T6qFL1QO+9HD9Rc5OaELvNdacPftEFJ G04ZQMF4ze+GwWqYNkp9kL04+AogcqsdJQN8nRnSSWXfWwHjqDnGX6I5xH9dVeE70hit A7kaMqOlfk4vlzsyqZ6wrGkRMVMrvXX/sBuaYyO/JBRPXYr4AroQLRNGOoi5stN6s4iJ SONQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=8DxYc0bSMX97nEtkMx1neNDKo6uHWvzsB7fs5VBWfYk=; b=lrOY62xvGybwkh5ItaPraR64junqK6pFu5odPHLgrw1TGGfOOhD6FtjC2lGs+2pNbT RS6/wJ2FDsR/nNxi4TcfzHKSgKptYgmn0aQWaP4Y6iq1rhK5W7GTRtwiIkLcFmKYY+8H iTcKVV3aj+ccWsFS1zYcu32sHEX7oVNJFS/xbMZYeFzQD7IQs4EOxcWyugVfXb/SGxeW B/3nio2U9YJym5qoKIby87is0MeBr5lJIErWB03WoRueHxK327Ys6N7lCbGgOLS3I54k 9BWNmB4eLFGCmDhDTwlTpvYPjvgqHCWgdW+NNSv07Bu68HKwdLY/GMCOOHy4+TtgsBXF tc0w== X-Gm-Message-State: AHPjjUh8j85o1ulhckNGds7XnpEYzWGRbA+YR9W5iHgbKW2AkJbuWXNn Hh/cGvuYQh4MoHTX X-Received: by 10.176.9.206 with SMTP id e14mr22222uah.126.1504636974829; Tue, 05 Sep 2017 11:42:54 -0700 (PDT) Received: from mail-vk0-f52.google.com (mail-vk0-f52.google.com. [209.85.213.52]) by smtp.gmail.com with ESMTPSA id v27sm293639uav.38.2017.09.05.11.42.54 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 05 Sep 2017 11:42:54 -0700 (PDT) Received: by mail-vk0-f52.google.com with SMTP id o22so8567934vke.1 for ; Tue, 05 Sep 2017 11:42:54 -0700 (PDT) X-Google-Smtp-Source: ADKCNb4S1jd+3l0Cc2XkMYhpvulgaYOhKCFBO43ADIhKTJVOeLIjE8nspvETK+2xeYqtsH2VVLpnfChfZvWJlG5RVmM= X-Received: by 10.31.50.69 with SMTP id y66mr15520vky.156.1504636974145; Tue, 05 Sep 2017 11:42:54 -0700 (PDT) MIME-Version: 1.0 Received: by 10.176.70.138 with HTTP; Tue, 5 Sep 2017 11:42:13 -0700 (PDT) X-Originating-IP: [96.60.166.241] From: Nick Date: Tue, 5 Sep 2017 13:42:13 -0500 X-Gmail-Original-Message-ID: Message-ID: To: bloat@lists.bufferbloat.net Content-Type: multipart/alternative; boundary="001a1143148a5c41bb05587598dc" Subject: [Bloat] fq_codel setting optimization for slow links 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: Tue, 05 Sep 2017 18:42:55 -0000 --001a1143148a5c41bb05587598dc Content-Type: text/plain; charset="UTF-8" Hello, I am using fq_codel on a Ubiquiti EdgeMax router. Whereas it seems like many people running this router are focusing on really fast connections, I have slow DSL connection with a 400 kbps uplink. I'm trying to figure out if there are some recommended fq_codel settings for slow links like mine, or a way of optimizing my settings? The best I've been able to find so far is: https://www.bufferbloat.net/projects/codel/wiki/Best_practices_for_benchmarking_Codel_and_FQ_Codel/ which makes it seem like I should set the "target" to at least 13 ms (or more?), set "limit" to 600 (or less?), disable ECN on the uplink. These settings I found are still for links several times faster than mine, so I'm wondering how I should change them, or if there is a good way to try varying something and measure this to determine the proper numbers. Thanks for the help, Nick --001a1143148a5c41bb05587598dc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello,

I am using fq_codel on a Ubiquit= i EdgeMax router. Whereas it seems like many people running this router are= focusing on really fast connections, I have slow DSL connection with a 400= kbps uplink.

I'm trying to figure out if ther= e are some recommended fq_codel settings for slow links like mine, or a way= of optimizing my settings?

The best I've been= able to find so far is:

which makes it seem = like I should set the "target" to at least 13 ms (or more?), set = "limit" to 600 (or less?), disable ECN on the uplink.
<= br>
These settings I found are still for links several times fast= er than mine, so I'm wondering how I should change them, or if there is= a good way to try varying something and measure this to determine the prop= er numbers. Thanks for the help,

Nick
--001a1143148a5c41bb05587598dc--