From: "Toke Høiland-Jørgensen" <toke@toke.dk>
To: Dave Taht <dave.taht@gmail.com>, Nils Andreas Svee <me@lochnair.net>
Cc: Cake <cake@lists.bufferbloat.net>,
Make-Wifi-fast <make-wifi-fast@lists.bufferbloat.net>,
cerowrt-devel <cerowrt-devel@lists.bufferbloat.net>,
bloat <bloat@lists.bufferbloat.net>
Subject: Re: [Make-wifi-fast] [Bloat] [Cake] Fwd: [Galene] Dave on bufferbloat and jitter at 8pm CET Tuesday 23
Date: Wed, 24 Feb 2021 11:51:42 +0100 [thread overview]
Message-ID: <87im6h4u2p.fsf@toke.dk> (raw)
In-Reply-To: <CAA93jw4-wspLUfL_ZJW1BN0uWaEqZGMOVnD3Z1jgrKOJ_r8xLw@mail.gmail.com>
Dave Taht <dave.taht@gmail.com> writes:
> wow, that is (predictably) miserable, even with cake. The only
> solution that is going to
> work is to somehow actively monitor your link quality and adjust cake
> to suit. Or we can start trying to use kathie's passive ping tools.
We have a PhD student working on a BPF-based implementation of pping:
https://github.com/xdp-project/bpf-examples/tree/master/pping
My hope is that this can end up being an always-on thing that runs on
the router and can be used to adjust the CAKE parameters as latency
spikes.
There are still a few rough edges on the implementation (most notably
the data output can become quite high), but it should otherwise be
usable, so feel free to take it for a spin. Needs a fairly recent LLVM
(10+ IIRC) to compile the BPF parts.
-Toke
next prev parent reply other threads:[~2021-02-24 10:51 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <874ki24ref.wl-jch@irif.fr>
2021-02-23 17:46 ` [Make-wifi-fast] " Dave Taht
2021-02-23 21:30 ` [Make-wifi-fast] [Cake] " Nils Andreas Svee
2021-02-24 1:14 ` Dave Taht
2021-02-24 1:29 ` [Make-wifi-fast] [Bloat] " Stephen Hemminger
2021-02-24 10:51 ` Toke Høiland-Jørgensen [this message]
2021-02-24 22:49 ` Nils Andreas Svee
2021-02-24 23:27 ` Toke Høiland-Jørgensen
2021-02-24 23:35 ` Nils Andreas Svee
2021-02-25 10:30 ` Toke Høiland-Jørgensen
2021-02-26 0:32 ` Nils Andreas Svee
2021-02-26 11:47 ` Toke Høiland-Jørgensen
2021-02-26 15:27 ` Nils Andreas Svee
2021-02-26 16:59 ` Bless, Roland (TM)
2021-02-26 17:14 ` Sebastian Moeller
2021-02-26 17:50 ` Bless, Roland (TM)
2021-02-24 15:19 ` Taraldsen Erik
2021-02-24 16:11 ` Toke Høiland-Jørgensen
2021-02-24 18:43 ` Jonathan Morton
2021-02-24 23:27 ` Nils Andreas Svee
2021-02-25 8:18 ` [Make-wifi-fast] [Cake] [Bloat] " Taraldsen Erik
2021-02-26 0:19 ` Nils Andreas Svee
2021-02-26 7:26 ` Taraldsen Erik
2021-02-26 12:26 ` [Make-wifi-fast] [Bloat] [Cake] " Toke Høiland-Jørgensen
2021-02-26 14:25 ` [Make-wifi-fast] [Cake] [Bloat] " Nils Andreas Svee
2021-02-26 15:08 ` Taraldsen Erik
2021-02-24 18:52 ` [Make-wifi-fast] " Jeremy Harris
2021-02-24 18:54 ` Dave Taht
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