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From: Jonathan Foulkes <jf@jonathanfoulkes.com>
To: "Toke Høiland-Jørgensen" <toke@toke.dk>
Cc: Mikael Abrahamsson <swmike@swm.pp.se>, bloat@lists.bufferbloat.net
Subject: Re: [Bloat] CAKE in openwrt high CPU
Date: Wed, 2 Sep 2020 16:26:12 -0400	[thread overview]
Message-ID: <99EE16A1-6CC9-4EB6-A6DC-CE2E910C6ADE@jonathanfoulkes.com> (raw)
In-Reply-To: <87imcxi4mq.fsf@toke.dk>

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> Right, so some benefit might be possible here. Does the NIC have
> multiple hardware queues (`ls /sys/class/net/$IFACE/queues` should tell
> you)?

Here is the output of:
/sys/devices/virtual/net/eth0.2/queues# ls
rx-0  tx-0
/sys/devices/virtual/net/eth0.2/queues/rx-0# cat rps_cpus 
0

/sys/devices/virtual/net/eth0.2/queues/tx-0# cat xps_cpus 
0

> Yup, the number of cores is only going to go up, so for CAKE to stay
> relevant it'll need to be able to take advantage of this eventually :)

True, the mid-range market is already there, and so soon will be the lower-end.
And with ISPs lighting up more and more capacity, the demand will be there to be able to shape higher and higher rates.

But I agree with Jonathan Morton that once every deice has sufficient capacity, more makes no difference. 
I went for 100/15 to 300/24 and never noticed the difference.

Hell, there are days I switch to my backup 10/0.7 DSL line for a test, and forget to switch back, and will work for hours and not notice I’m not on the 300Mbps line ;-)

Cheers,

Jonathan

> On Sep 1, 2020, at 5:11 PM, Toke Høiland-Jørgensen <toke@toke.dk> wrote:
> 
> Jonathan Foulkes <jf@jonathanfoulkes.com> writes:
> 
>> Thanks Toke, we currently are on an MT7621a @880, so a dual-core.
> 
> Right, so some benefit might be possible here. Does the NIC have
> multiple hardware queues (`ls /sys/class/net/$IFACE/queues` should tell
> you)?
> 
>> And we are looking for a good quad-core platform that will support
>> 600Mbps or more with Cake enabled, hopefully with AX radios as well.
> 
> Yup, the number of cores is only going to go up, so for CAKE to stay
> relevant it'll need to be able to take advantage of this eventually :)
> 
> -Toke


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  reply	other threads:[~2020-09-02 20:26 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
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 [this message]
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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