netdev - Re: [PATCH v2 net-next 0/4] net_sched: sch_fq: add WRR scheduling and 3 bands

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Message-ID: <875y3pgmh0.fsf@toke.dk>
Date: Mon, 02 Oct 2023 15:52:59 +0200
From: Toke Høiland-Jørgensen <toke@...hat.com>
To: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>
Cc: Willem de Bruijn <willemb@...gle.com>, Soheil Hassas Yeganeh
 <soheil@...gle.com>, Neal Cardwell <ncardwell@...gle.com>, Jamal Hadi
 Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>, Jiri Pirko
 <jiri@...nulli.us>, netdev@...r.kernel.org, eric.dumazet@...il.com, Eric
 Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH v2 net-next 0/4] net_sched: sch_fq: add WRR scheduling
 and 3 bands

Eric Dumazet <edumazet@...gle.com> writes:

> As discussed in Netconf 2023 in Paris last week, this series adds
> to FQ the possibility of replacing pfifo_fast for most setups.
>
> FQ provides fairness among flows, but malicious applications
> can cause problems by using thousands of sockets.
>
> Having 3 bands like pfifo_fast can make sure that applications
> using high prio packets (eg AF4) can get guaranteed throughput
> even if thousands of low priority flows are competing.
>
> Added complexity in FQ does not matter in many cases when/if
> fastpath added in the prior series is used.
>
> v2: augmented two extack messages (Toke)

Thanks!
For the series:

Reviewed-by: Toke Høiland-Jørgensen <toke@...hat.com>