Bug#890343: linux: make fq_codel default for default_qdisc

From	Matt Taggart <taggart@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#890343: linux: make fq_codel default for default_qdisc
Date	2020-04-24 00:40 +0200
Message-ID	<zYSFI-7P6-3@gated-at.bofh.it> (permalink)
References	<viMfE-1oC-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

Show all headers | View raw

#890343 was originally opened against systemd asking to install the 
upstream systemd sysctl.d/50-default.conf file that sets:

net.core.default_qdisc = fq_codel

As explained in #950701 (and the systemd debian changelog) the debian 
systemd maintainers felt that systemd in debian should not be changing 
kernel policies (and I agree).
So #890343 was reassigned to linux to consider changing the default.

fq_codel is better in every way than pfifo_fast and I am unaware of any 
reason why it would not be a better default. (but don't trust me, ask 
the kernel networking experts)

Can we change it?

Related thoughts:
* ubuntu issue, looks like maybe they already switched by default due to 
the systemd change? 
https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1773157
* another ubuntu issue that might help 
https://bugs.launchpad.net/ubuntu/+bug/940541
* are there other related defaults that should change too? like tcp_ecn, 
syncookies, BBR, etc
* what are upstream kernel defaults and why?

-- 
Matt Taggart
taggart@debian.org

Back to linux.debian.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Bug#890343: linux: make fq_codel default for default_qdisc Matt Taggart <taggart@debian.org> - 2020-04-24 00:40 +0200
  Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2020-04-24 01:30 +0200
    Bug#890343: linux: make fq_codel default for default_qdisc Matt Taggart <taggart@debian.org> - 2020-04-24 07:10 +0200
  Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2021-01-08 01:20 +0100
    Bug#890343: linux: make fq_codel default for default_qdisc Ivan Baldo <ibaldo@adinet.com.uy> - 2021-01-18 02:40 +0100
      Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2021-01-20 23:00 +0100
    Bug#890343: linux: make fq_codel default for default_qdisc Vincent Blut <vincent.debian@free.fr> - 2021-01-20 22:30 +0100
      Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2021-01-20 23:10 +0100
        Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2021-01-20 23:30 +0100
          Processed: Re: Bug#890343: linux: make fq_codel default for  default_qdisc "Debian Bug Tracking System" <owner@bugs.debian.org> - 2021-01-20 23:30 +0100
        Bug#890343: linux: make fq_codel default for default_qdisc Vincent Blut <vincent.debian@free.fr> - 2021-01-20 23:50 +0100
          Bug#890343: linux: make fq_codel default for default_qdisc Noah Meyerhans <noahm@debian.org> - 2021-01-21 00:00 +0100
            Bug#890343: linux: make fq_codel default for default_qdisc Vincent Blut <vincent.debian@free.fr> - 2021-01-21 00:10 +0100
            Bug#890343: linux: make fq_codel default for default_qdisc Ben Hutchings <ben@decadent.org.uk> - 2021-01-21 00:50 +0100
              Bug#890343: linux: make fq_codel default for default_qdisc Vincent Blut <vincent.debian@free.fr> - 2021-02-26 19:10 +0100

csiph-web