[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Bug Watch Updater]

** Changed in: linux (Debian)
   Status: New => Fix Released

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Simon Iremonger]

Launchpad issue link didn't come out -- LP #1773157
https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1773157

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Simon Iremonger]

Interestingly, turns out that seemingly systemd is what is (currently)
responsible for turning on fq_codel by default.  See:-

https://github.com/systemd/systemd/commit/e6c253e363dee77ef7e5c5f44c4ca55cded3fd47

Be nice to then get that suggested into upstream linux as a default
and/or procps for 'non-systemd' booting.   Also see   #1773157  -- ECN
really needs to be properly enabled to give the best benefit for
congestion with TCP streams present.

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Laurent Bonnaud via ubuntu-bugs]

I also see fq_codel used as default:

# cat /proc/sys/net/core/default_qdisc
fq_codel

# ip addr
[...]
2: eth0:  mtu 1500 qdisc fq_codel state UP 
group default qlen 1000


** Changed in: linux (Ubuntu)
   Status: Confirmed => Fix Released

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Simon Iremonger]

>From what I can see, updates in ubuntu have now fixed this, bionic
system certainly seems to now be booting with
/proc/sys/net/core/default_qdisc = fq_codel   now!.

Can somebody confirm this and close this bug as 'fixed' ?


SECONDLY, Related bufferbloat-matter to make fq_codel work better to avoid 
packet-drops is outbound tcp ECN-enablement on ubuntu end-hosts -- please see 
related ubuntu bug #1773157 and mark/comment there please:-

https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1773157

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Laurent Bonnaud]

** Package changed: systemd (Debian) => linux (Debian)

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Bug Watch Updater]

** Changed in: systemd (Debian)
   Status: Unknown => New

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Laurent Bonnaud]

** Bug watch added: Debian Bug tracker #890343
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=890343

** Also affects: systemd (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=890343
   Importance: Unknown
   Status: Unknown

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Laurent Bonnaud]

** Tags added: artful bionic

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-16.02 => ubuntu-16.03

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-16.01 => ubuntu-16.02

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.12 => ubuntu-16.01

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.11 => ubuntu-15.12

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.10 => ubuntu-15.11

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.08 = ubuntu-15.10

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.07 = ubuntu-15.08

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Andy Whitcroft]

** Changed in: linux (Ubuntu)
Milestone: ubuntu-15.03 = ubuntu-15.07

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Conficio]

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.

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Title:
  devel: consider fq_codel as the default qdisc for networking

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[Bug 1436945] Re: devel: consider fq_codel as the default qdisc for networking

[Toke Høiland-Jørgensen]

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!

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Title:
  devel: consider fq_codel as the default qdisc for networking

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