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From: Dave Taht <dave.taht@gmail.com>
Date: Sun, 26 Nov 2017 14:22:22 -0800
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Subject: [Cake] decaying flows with an empty qdisc
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...

        } else if (!sch->q.qlen) {
                int i;

                for (i =3D 0; i < q->tin_cnt; i++) {
                        if (q->tins[i].decaying_flow_count) {
                                qdisc_watchdog_schedule_ns(&q->watchdog, no=
w +

q->tins[i].cparams.target);
                                break;

I imagine this code is rarely hit, doing bursty udp flooding on
various diffserv code-points, which then drain would be needed to
exercise it.

                        }
                }
        }


--=20

Dave T=C3=A4ht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619