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

Jonathan Morton chromatix99 at gmail.com
Tue Jun 5 03:49:30 EDT 2018


> On 5 Jun, 2018, at 10:44 am, Mario Hock <mario.hock at kit.edu> wrote:
> 
> Just to make sure that I got your answer correctly. The benefit for endsystems comes from the "fq" (flow queuing) part, not from the "codel" part of fq_codel?

That's a fair characterisation, yes.

In fact, even for middleboxes, the "flow isolation" semantics of FQ have the most impact on reducing inter-flow induced latency.  The "codel" part (AQM) helps with intra-flow latency, which is usually much less important once flow isolation is in place, but is still worth having.

 - Jonathan Morton



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