Bug#890343: linux: make fq_codel default for default_qdisc
#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
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