From: Jonathan Morton <chromatix99@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: cake@lists.bufferbloat.net
Subject: Re: [Cake] A few puzzling Cake results
Date: Tue, 17 Apr 2018 17:03:12 +0300 [thread overview]
Message-ID: <C0095700-7A65-4259-84E5-C3A113608D96@gmail.com> (raw)
In-Reply-To: <87vacq419h.fsf@toke.dk>
> On 17 Apr, 2018, at 12:42 pm, Toke Høiland-Jørgensen <toke@toke.dk> wrote:
>
> - The TCP RTT of the 32 flows is *way* higher for Cake. FQ-CoDel
> controls TCP flow latency to around 65 ms, while for Cake it is all
> the way up around the 180ms mark. Is the Codel version in Cake too
> lenient, or what is going on here?
A recent change was to increase the target dynamically so that at least 4 MTUs per flow could fit in each queue without AQM activity. That should improve throughput in high-contention scenarios, but it does come at the expense of intra-flow latency when it's relevant.
To see whether Diffserv actually prioritises correctly, you'll need to increase the number of bulk flows beyond the point where the VoIP flow no longer receives the bandwidth it needs purely from its fair share of the link.
- Jonathan Morton
next prev parent reply other threads:[~2018-04-17 14:03 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 9:42 Toke Høiland-Jørgensen
2018-04-17 10:04 ` Luca Muscariello
2018-04-17 10:38 ` Toke Høiland-Jørgensen
2018-04-17 12:05 ` Y
[not found] ` <mailman.225.1523966725.3573.cake@lists.bufferbloat.net>
2018-04-17 12:22 ` Toke Høiland-Jørgensen
2018-04-17 13:16 ` Jonas Mårtensson
2018-04-17 13:50 ` Toke Høiland-Jørgensen
2018-04-17 13:47 ` Luca Muscariello
2018-04-17 13:52 ` Luca Muscariello
2018-04-17 14:25 ` Toke Høiland-Jørgensen
2018-04-17 14:54 ` Luca Muscariello
2018-04-17 15:10 ` Toke Høiland-Jørgensen
2018-04-17 14:03 ` Jonathan Morton [this message]
2018-04-17 14:17 ` Toke Høiland-Jørgensen
2018-04-18 11:25 ` Toke Høiland-Jørgensen
2018-04-18 12:21 ` Kevin Darbyshire-Bryant
2018-04-18 12:57 ` Toke Høiland-Jørgensen
2018-04-18 13:13 ` Jonas Mårtensson
2018-04-18 13:21 ` Toke Høiland-Jørgensen
2018-04-18 14:12 ` Jonathan Morton
2018-04-18 14:30 ` Toke Høiland-Jørgensen
2018-04-18 15:03 ` Jonathan Morton
2018-04-18 15:17 ` Sebastian Moeller
2018-04-18 15:58 ` Jonathan Morton
2018-04-18 16:11 ` Toke Høiland-Jørgensen
2018-04-18 16:25 ` Dave Taht
2018-04-18 16:34 ` Georgios Amanakis
2018-04-18 17:10 ` Sebastian Moeller
2018-04-19 7:49 ` Luca Muscariello
2018-04-19 8:11 ` Jonathan Morton
2018-04-19 9:00 ` Toke Høiland-Jørgensen
2018-04-19 9:21 ` Jonathan Morton
2018-04-19 9:26 ` Toke Høiland-Jørgensen
2018-04-19 9:55 ` Jonathan Morton
2018-04-19 10:33 ` Toke Høiland-Jørgensen
2018-04-19 11:55 ` Luca Muscariello
2018-04-18 16:54 ` Jonathan Morton
2018-04-18 17:02 ` Dave Taht
2018-04-18 18:06 ` Jonas Mårtensson
2018-04-18 18:11 ` Toke Høiland-Jørgensen
2018-04-18 18:16 ` Kevin Darbyshire-Bryant
[not found] ` <mailman.238.1524075384.3573.cake@lists.bufferbloat.net>
2018-04-19 8:31 ` Kevin Darbyshire-Bryant
2018-04-18 18:11 ` Jonas Mårtensson
2018-04-18 19:53 ` David Lang
2018-04-18 21:53 ` Jonathan Morton
2018-04-19 9:22 ` Toke Høiland-Jørgensen
2018-04-19 9:32 ` Jonathan Morton
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