Discussion of explicit congestion notification's impact on the Internet
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From: Dave Taht <dave.taht@gmail.com>
To: Pete Heist <pete@heistp.net>
Cc: Sebastian Moeller <moeller0@gmx.de>, ecn-sane@lists.bufferbloat.net
Subject: Re: [Ecn-sane] results of two simple ECN tests
Date: Mon, 18 Feb 2019 11:24:18 -0800	[thread overview]
Message-ID: <CAA93jw4mQ5rOAwxQTZckWbv+cZ0xyC+u5nJ1wfiAzK1UG=SagQ@mail.gmail.com> (raw)
In-Reply-To: <C096F1D2-4F02-4604-B3FB-9F08CF53FBF5@heistp.net>

I appreciate the shot at going back to basics and the packet capture
driven tests.

ECN does help keep latency down at longer RTTs. But the bandwidth
improvements are rather minimal in this test case, and basically a
function of what would have been the drop rate. The pathological cases
I was discussing at one point (100 flows through a short low bandwidth
link) dramatically increase delay, cause starvation for other flows
(including new flows trying to start).

      reply	other threads:[~2019-02-18 19:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-17 11:26 Pete Heist
2019-02-17 13:02 ` Sebastian Moeller
2019-02-17 20:57   ` Pete Heist
2019-02-17 21:07     ` Sebastian Moeller
2019-02-18 10:33       ` Pete Heist
2019-02-18 19:24         ` Dave Taht [this message]

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