From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] CAKE in openwrt high CPU
Date: Mon, 31 Aug 2020 15:29:33 +0200 [thread overview]
Message-ID: <87eennj64i.fsf@toke.dk> (raw)
In-Reply-To: <alpine.DEB.2.20.2008311415070.11025@uplift.swm.pp.se>
Mikael Abrahamsson <swmike@swm.pp.se> writes:
> On Mon, 31 Aug 2020, Toke Høiland-Jørgensen wrote:
>
>> Hmm, you say CAKE and FQ-Codel - so you're not enabling the shaper (that
>> would be FQ-CoDel+HTB)? An exact config might be useful (or just the
>> output of tc -s qdisc).
>
> Yeah, I guess I'm also using HTB to get the 900 megabit/s SQM is looking
> for.
Ah, right, makes more sense :)
> If I only use FQ_CODEL to get interface speeds my performance is fine.
And what about when you're running CAKE in 'unlimited' mode?
>> If you are indeed not shaping, maybe you're hitting the issue fixed by this commit?
>>
>> https://github.com/dtaht/sch_cake/commit/3152477235c934022049fcddc063c45d37ec10e6n
>
> I enabled it just now to get the config.
>
> qdisc cake 8030: dev eth0 root refcnt 9 bandwidth 900Mbit besteffort
> triple-isolate nonat nowash no-ack-filter split-gso rtt 100.0ms raw
> overhead 0
Hmm, right, you could try no-split-gso as an option as well; you're
pretty close to the point where we turn it off by default, and you're
getting pretty large packets (max_len), so your performance may be
suffering from the splitting...
-Toke
next prev parent reply other threads:[~2020-08-31 13:29 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-30 17:27 Mikael Abrahamsson
2020-08-30 17:52 ` Dave Taht
2020-08-31 11:35 ` Toke Høiland-Jørgensen
2020-08-31 12:22 ` Mikael Abrahamsson
2020-08-31 13:29 ` Toke Høiland-Jørgensen [this message]
2020-09-03 13:10 ` Mikael Abrahamsson
2020-09-03 13:29 ` Toke Høiland-Jørgensen
2020-09-03 13:34 ` Sebastian Moeller
2020-09-03 13:32 ` Sebastian Moeller
2020-09-04 13:37 ` Mikael Abrahamsson
2020-09-04 14:12 ` Sebastian Moeller
2020-09-01 15:41 ` Jonathan Foulkes
2020-09-01 16:11 ` Toke Høiland-Jørgensen
2020-09-01 16:25 ` Sebastian Moeller
2020-09-01 18:45 ` Toke Høiland-Jørgensen
2020-09-01 19:05 ` Jonathan Morton
2020-09-01 21:09 ` Toke Høiland-Jørgensen
2020-09-01 19:01 ` Jonathan Foulkes
2020-09-01 21:11 ` Toke Høiland-Jørgensen
2020-09-02 20:26 ` Jonathan Foulkes
2020-09-02 20:57 ` Toke Høiland-Jørgensen
2020-09-03 13:19 ` Mikael Abrahamsson
2020-09-03 13:27 ` Luca Muscariello
2020-09-03 14:32 ` Toke Høiland-Jørgensen
2020-09-03 15:31 ` Luca Muscariello
2020-09-03 18:39 ` Toke Høiland-Jørgensen
2020-09-03 18:53 ` Jonathan Morton
2020-09-03 22:14 ` [Bloat] Other CAKE territory (was: CAKE in openwrt high CPU) David Collier-Brown
2020-09-04 1:19 ` Jonathan Morton
2020-09-04 13:41 ` Mikael Abrahamsson
2020-09-04 11:11 ` Toke Høiland-Jørgensen
2020-09-03 13:27 ` [Bloat] CAKE in openwrt high CPU Toke Høiland-Jørgensen
2020-09-01 16:18 ` Sebastian Moeller
2020-09-01 19:31 ` Jonathan Foulkes
2020-09-01 20:04 ` Sebastian Moeller
2020-09-01 20:09 ` Jonathan Morton
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