[Codel] fq_codel : interval servo

Eric Dumazet eric.dumazet at gmail.com
Fri Aug 31 02:55:37 EDT 2012

On locally generated TCP traffic (host), we can override the 100 ms
interval value using the more accurate RTT estimation maintained by TCP
stack (tp->srtt)

Datacenter workload benefits using shorter feedback (say if RTT is below
1 ms, we can react 100 times faster to a congestion)

Idea from Yuchung Cheng.

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