[Cake] some comprehensive arm64 w/cake results

dave seddon dave.seddon.ca at gmail.com
Mon Sep 18 18:52:19 EDT 2023

Thanks Jonathan!

Curious and curiouser

I'd love to understand the difference between the tests I've been doing and
your tests.

   - How many TCP flows did you have please ( cake performance seems to
   drop significantly with increased number of TCP flows, although I need to
   do more testing to understand why )?
   - What was the RTT?
   - Load tool?
   - ... so many questions :)

On Mon, Sep 18, 2023 at 3:13 PM Jonathan Morton <chromatix99 at gmail.com>

> > On 18 Sep, 2023, at 10:50 pm, dave seddon via Cake <
> cake at lists.bufferbloat.net> wrote:
> >
> > The cake tests so far had rtt 1ms and rtt 3ms, which might be too low.
> ( If it is too low, then maybe it would make sense to remove "rtt lan = rtt
> 1ms" option, as it's a misleading configuration option? )
> If all your traffic is over the LAN, and you have a machine and
> application tuned for the extra-low latencies that a LAN can offer, then
> setting LAN-grade targets for Cake might make sense.  But most people's
> traffic is a mixture, with the performance of Internet traffic being more
> important, and that is better served by the *default* settings.
> You ran fq_codel at its default settings.  These are equivalent to Cake's
> default settings, so far as the AQM activity is concerned.  I'm just asking
> for a like-to-like comparison.  You could be pleasantly surprised.
>  - Jonathan Morton

Dave Seddon
+1 415 857 5102
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