devel: consider fq_codel as the default qdisc for networking

Bug #1436945 reported by Andy Whitcroft on 2015-03-26
76
This bug affects 14 people
Affects Status Importance Assigned to Milestone
linux (Debian)
New
Unknown
linux (Ubuntu)
Low
Andy Whitcroft

Bug Description

This was raised on the kernel-team@ mailing list, we should look at this if other distros are starting to move.

===

Date: Tue, 24 Mar 2015 10:54:37 -0700
From: Dave Taht <email address hidden>
To: Joseph Salisbury <email address hidden>
Cc: Kernel Team <email address hidden>, <email address hidden>
Subject: Re: Minutes from the Ubuntu Kernel Team meeting, 2015-03-24

I must confess I had hoped ubuntu would adopt fq_codel as the default
qdisc in this go-around. It is still not quite part of fedora´s
default either, but is now in arch, (and nearly everyone else
downstream from systemd), and has long been the default in openwrt,
and at this point, just requires a single sysctl to enable.

It certainly could use more widespread testing, perhaps in the next release?

d@nuc-client:~$ cat /etc/sysctl.d/10-bufferbloat.conf
net.core.default_qdisc=fq_codel

Andy Whitcroft (apw) on 2015-03-26
Changed in linux (Ubuntu):
status: New → Confirmed
importance: Undecided → Low
assignee: nobody → Andy Whitcroft (apw)
milestone: none → ubuntu-15.03

Happy Arch user running with the fq_codel default for a while. I have also enabled it manually on the Ubuntu systems I administer (running 12.04 with the updated kernel packages, and 14.04). Will definitely second it being turned on by default!

Conficio (kajkandler) wrote :

Yes, lets fight #bufferbloat, especially for OS that goes into mobile devices (phone, tablet, laptop, netbook, internet audio player, TV, etc. which might connect to the network via WiFi and other wireless networks, as their speed might be different from the surrounding (home / small office) network. Because speed steps are the locations where bufferbloat piles up.

And lets keep a keen eye on Dave Taht's work on Wifi core as this will have another round of improvements to our mobile networked lives.

Andy Whitcroft (apw) on 2015-07-08
Changed in linux (Ubuntu):
milestone: ubuntu-15.03 → ubuntu-15.07
Andy Whitcroft (apw) on 2015-07-31
Changed in linux (Ubuntu):
milestone: ubuntu-15.07 → ubuntu-15.08
Andy Whitcroft (apw) on 2015-08-25
Changed in linux (Ubuntu):
milestone: ubuntu-15.08 → ubuntu-15.10
Andy Whitcroft (apw) on 2015-11-04
Changed in linux (Ubuntu):
milestone: ubuntu-15.10 → ubuntu-15.11
Andy Whitcroft (apw) on 2015-12-07
Changed in linux (Ubuntu):
milestone: ubuntu-15.11 → ubuntu-15.12
Andy Whitcroft (apw) on 2016-01-19
Changed in linux (Ubuntu):
milestone: ubuntu-15.12 → ubuntu-16.01
Andy Whitcroft (apw) on 2016-02-01
Changed in linux (Ubuntu):
milestone: ubuntu-16.01 → ubuntu-16.02
Andy Whitcroft (apw) on 2016-03-10
Changed in linux (Ubuntu):
milestone: ubuntu-16.02 → ubuntu-16.03
tags: added: artful bionic
Changed in systemd (Debian):
status: Unknown → New
affects: systemd (Debian) → linux (Debian)
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