On Fri, Dec 1, 2017 at 11:45 AM, Dave Taht <[email protected]> wrote: > On Fri, Dec 1, 2017 at 11:29 AM, Georgios Amanakis <[email protected]> > wrote: >> cake vs sfq and fq_codel looks great! You already have fq_codel in the >> graphs, do you mean codel?
Heh. I meant codel, yes. >> In terms of simulating CMTS I am trying to simulate a cable connection. >> Is the following reasonable? >> ===========8<=========== >> servers --- delay --- isp --- mbox --- clients >> >> delay: >> tc qdisc replace dev delay.r root netem delay ZZms rate XXXmbit limit 100000 >> tc qdisc replace dev delay.l root netem delay ZZms rate XXXmbit limit 100000 > > There is not much need to specify the rate here, just the delay. You > could like say 10Gbit, if you wanted. > >> isp: >> tc qdisc replace dev isp.l root bfifo limit 1024k >> tc qdisc replace dev isp.r root bfifo limit 1024k > > No, because this is not the bottleneck queue. isp.r > > tc qdisc del dev isp.r root # a little uncertain of what happens with > handle > tc qdisc replace dev isp.r root handle 1: netem rate YYYmbit \ > limit 100000 > tc qdisc add dev isp.r parent 1:1 handle 10:1 bfifo limit 1024k > > I think. > >> mbox: >> tc qdisc replace dev mbox.l root cake bandwidth YYYmbit >> tc qdisc replace dev mbox.r root cake bandwidth YYYmbit > > tc qdisc del dev mbox.r root # to leave it unshaped > # or put cake back in to shape it after the isp shaper above. > > > >> ===========8<=========== >> >> George >> >> On Fri, Dec 1, 2017 at 2:23 PM, Dave Taht <[email protected]> wrote: >>> >>> That's really hard to argue with. An fq_codel same conditions (and >>> pfifo and pie) might be interesting here. >>> >>> On Thu, Nov 30, 2017 at 9:13 AM, Georgios Amanakis <[email protected]> >>> wrote: >>> > I gave high RTT with high bandwidth a try: >>> > server -- delay -- mbox -- client >>> > netserver 300/300ms 45/900mbit flent >>> > >>> > I had to run flent with "-s 0.61" in order to avoid errors with fping >>> > dying >>> > prematurely. >>> > Comparing noack, ack, and ack-aggressive, ack seems to give the highest >>> > download rates. >>> > Cake was setup with "rtt 600ms". >>> > >>> > George >>> > >>> > On Wed, Nov 29, 2017 at 6:25 PM, Jonathan Morton <[email protected]> >>> > wrote: >>> >> >>> >> High RTT with relatively high bandwidth is traditionally considered >>> >> challenging, and is representative of Australasian and satellite >>> >> connections. Definitely do some of those. >>> >> >>> >> Low bandwidth should also be interesting. DSL at 4/1 Mbit is typical >>> >> entry level package here. >>> >> >>> >> - Jonathan Morton >>> >> >>> >> >>> >> _______________________________________________ >>> >> Cake mailing list >>> >> [email protected] >>> >> https://lists.bufferbloat.net/listinfo/cake >>> >> >>> > >>> > >>> > _______________________________________________ >>> > Cake mailing list >>> > [email protected] >>> > https://lists.bufferbloat.net/listinfo/cake >>> > >>> >>> >>> >>> -- >>> >>> Dave Täht >>> CEO, TekLibre, LLC >>> http://www.teklibre.com >>> Tel: 1-669-226-2619 >> >> > > > > -- > > Dave Täht > CEO, TekLibre, LLC > http://www.teklibre.com > Tel: 1-669-226-2619 -- Dave Täht CEO, TekLibre, LLC http://www.teklibre.com Tel: 1-669-226-2619 _______________________________________________ Cake mailing list [email protected] https://lists.bufferbloat.net/listinfo/cake
