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Groups > linux.debian.kernel > #69210

Bug#890343: linux: make fq_codel default for default_qdisc

Cross-posted to 2 groups.

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On Wed, Jan 20, 2021 at 10:22:16PM +0100, Vincent Blut wrote:
> My proposal would differ from yours though in that it would not touch the kernel
> configuration but would instead consist in patching procps to provide a
> configuration file (let's say default_qdisc.conf) to set the value of the
> net.core.default_qdisc variable to fq_codel via sysctl.
> This would allow to benefit from FQ_Codel without depending on a specific Linux
> version.

We could do that.  However, in the past (earlier in this bug, even) it's
been pointed out that other packages should not be responsible for
setting kernel policies, so changes like this should be the
responsibility of the kernel packages.  That seems like a sensible
position to take.

One possible way for the kernel team to take ownership of this would be
for it to introduce a new "debian-kernel-sysctl" package or something
like that to provide some sysctl.d drop-in files.  It could then set
net.core.default_qdisc, and potentially others in various scenarios.
Such a package can be installed indepdendently of whether the user is
running a Debian-provided kernel package.

The other alternative is the one I've proposed, which involves changing
the compile-time defaults in Debian's kernel packages.  This obviously
only affects users of those packages.  However, I think that's fine;
people who are building their own packages may very well be starting
from Debian's config, in which case they'll still get this change, or
may be constructing their own configuration from scratch, in which case
they're assuming ownership of all the parameters.

noah

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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

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