From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-x22c.google.com (mail-wr0-x22c.google.com [IPv6:2a00:1450:400c:c0c::22c]) (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 B41F93B2A4 for ; Sat, 25 Nov 2017 02:18:27 -0500 (EST) Received: by mail-wr0-x22c.google.com with SMTP id 11so18677552wrb.6 for ; Fri, 24 Nov 2017 23:18:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:subject:from:in-reply-to:date:cc:message-id:references :to; bh=i/jsIEpD9/byHaq8G3rjgfZCqQwaPc/on1goMmjkA94=; b=XAQMsoP7lrgc1/7iWYWQtlPgVzCOyNwqKE0Q/3qY6i8J7zN6uFaIw6SAjurtgUVvmj emasZ2dIJZ49/BcHAwkRwCffgjl0bcN8hNE5+eExJE1uiApl92BcVXj9jwO22+/D0Mbk I/TbKLxSuHzv8q20HCoHUOkglJEuaxtSN/BdCQx4V51eSCBb094omlgKRYdg1kwfkeg2 Bvu6pXHumSjZjMK8JBVPuGDJO/6o7cEkJGhoOKKY8u9ujSWD3sONZvjA5lfbpzITUkld Rzm42uliCkjdVnip89NeZjzfh2vPcd8tJK5+x9z7yjkSD2aeRe8yWYoULNANDFDnCzIU 7XYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to; bh=i/jsIEpD9/byHaq8G3rjgfZCqQwaPc/on1goMmjkA94=; b=gJGZwXtFql6j/uFqufcMojeCfktpatwgwigO5/M11T5HJ/Hjq62Ln3Ymqlp40ajF+T 3ylVWhKplyQqzmxm3N1+eMQEa1WYaCWIyZY74CS7NzVd8t/iSbHt1dvpNHf9jc8vkxWC adhTEgqCGzRzAis+yXhbB1lOMcwVEaUUMHtRRUB4k/xRUpbrw4uDGgmGHSuLmv2JPTw+ zBQxIXSlqCUr1CpMjabv4a9jHvwrHh5bVpxTfO+AXqHmyac9x6UpdLLxsjBDowBq3S15 NggS+g0TX1oS7xvcJRTSh9/I4vqxKBJeq7/dXA5cpnPh8M/1DIm4IWYRJ3My87/4DF4G oZCg== X-Gm-Message-State: AJaThX4ouAOmTyDLeIejuM0JFYRgzC5nn4Q3+97CzOl/QrbOCNl/zTDI XFXYXueV2kP70kzkaWdd/IgF3BeQ X-Google-Smtp-Source: AGs4zMbnEzLOLUoNia0dBf1sINtF/F+Wou/OFe8QzYFukElkG6sg9oLOXKFDR8Sx0fdjQjohmbfD4w== X-Received: by 10.223.170.214 with SMTP id i22mr29880300wrc.110.1511594305849; Fri, 24 Nov 2017 23:18:25 -0800 (PST) Received: from [10.72.0.130] (h-1169.lbcfree.net. [185.99.119.68]) by smtp.gmail.com with ESMTPSA id x52sm20056234wrb.25.2017.11.24.23.18.24 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 24 Nov 2017 23:18:25 -0800 (PST) Content-Type: multipart/alternative; boundary="Apple-Mail=_48FCC08C-50DA-4146-870D-3195C1FC3890" Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) From: Pete Heist In-Reply-To: Date: Sat, 25 Nov 2017 08:18:23 +0100 Cc: =?utf-8?Q?Dave_T=C3=A4ht?= , Cake List Message-Id: References: <71FB183D-F848-4513-A6F6-D03FD0F10769@gmail.com> <52C2B216-220C-4C17-882C-9994867E86BB@gmail.com> <87tvxlvsex.fsf@nemesis.taht.net> <87609zapmt.fsf@toke.dk> <0D339F2F-F2CB-4800-84B9-E7321AE4D15E@gmail.com> <62E918D8-18C2-45E1-ACAD-05CBC0DFA55A@gmail.com> To: Jonathan Morton X-Mailer: Apple Mail (2.3124) Subject: Re: [Cake] lan keyword affects host fairness X-BeenThere: cake@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: Cake - FQ_codel the next generation List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Nov 2017 07:18:27 -0000 --Apple-Mail=_48FCC08C-50DA-4146-870D-3195C1FC3890 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Nov 24, 2017, at 9:32 PM, Jonathan Morton = wrote: > Mmm, that's a lot of drops. So you're not using ECN? >=20 Not using ecn. I did one ecn run but didn=E2=80=99t see much change. I = did more runs at 950mbit- 20ms, 50ms 100ms and added a chart at the = bottom of rtt vs fairness (same doc, link for reference): = https://docs.google.com/spreadsheets/d/1SMXWw2fLfmBRU622urfdvA_Ujsuf_KQ4P3= uyOH1skOM/edit#gid=3D2072687073 = There seems to be a weird asymmetry that happens sometimes at rtt 20ms = and rtt 50ms. One run at 20ms (right after rebooting) looked good but an = earlier one didn=E2=80=99t. Three runs at 50ms all showed some level of = asymmetry. I=E2=80=99ll have to move on to other work, but the results still show = fairness working pretty well at 100ms. It sometimes works well at other = rtts, but there are variations and sometimes asymmetries. It=E2=80=99s = hard to pull apart.= --Apple-Mail=_48FCC08C-50DA-4146-870D-3195C1FC3890 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
On Nov 24, 2017, at 9:32 PM, Jonathan Morton <chromatix99@gmail.com> wrote:

Mmm, that's a lot of drops.  So you're not = using ECN?

Not using ecn. I did one ecn run but didn=E2=80=99= t see much change. I did more runs at 950mbit- 20ms, 50ms 100ms and = added a chart at the bottom of rtt vs fairness (same doc, link for = reference):

https://docs.google.com/spreadsheets/d/1SMXWw2fLfmBRU622urfdvA_= Ujsuf_KQ4P3uyOH1skOM/edit#gid=3D2072687073

There seems to be a weird asymmetry = that happens sometimes at rtt 20ms and rtt 50ms. One run at 20ms (right = after rebooting) looked good but an earlier one didn=E2=80=99t. Three = runs at 50ms all showed some level of asymmetry.

I=E2=80=99ll have to move on to other = work, but the results still show fairness working pretty well at 100ms. = It sometimes works well at other rtts, but there are variations and = sometimes asymmetries. It=E2=80=99s hard to pull = apart.
= --Apple-Mail=_48FCC08C-50DA-4146-870D-3195C1FC3890--