Heh. esfq was "best in class" for a very, very long time. I have years of mrtg data on my network that I haven't looked at in years.... On Thu, Sep 6, 2018 at 3:37 PM Pete Heist <p...@heistp.net> wrote: > > I met with the FreeNet Liberec admins earlier this week, and am just starting > to get the first IRTT / SmokePing probe data from a few backhaul routers. > I’ll see if I can get snapshots of the SmokePing pages public somewhere, but > for now... > > https://www.heistp.net/downloads/jerab_ping.pdf > > https://www.heistp.net/downloads/jerab_irtt.pdf > > On this router, there are various “events” that occur with RTT spikes, and in > general, UDP RTT maximums appear quite a bit higher than those for ICMP. I > speculate that at least some of these events may be bloat, but can’t be sure > yet. > > This router is an old ALIX with kernel 2.6.26, but on the other hand it does > have hfsc + esfq (a variant of sfq with host fairness) deployed, so if it’s > actually controlling the queue, one might suspect that sfq it could control > inter-flow latency at least somewhat. > > I feel the need for better data than this, but this is at least a first look > for me at bloat in an ISP’s backhaul. The “elaborate” plan is to gather data > for a while, deploy sqm in a couple places (I hope for cake, but the kernel > will need to be upgraded on this one), and see what happens… :) > > Pete > > _______________________________________________ > Cake mailing list > Cake@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cake
-- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake
