Hi Sebastian, Following your recommandations, I tried with several step-size values, with no luck. It does not seem to help the TCP upload graph. I do not want to bother ML users with the graphs, I copy them to Dropbox: https://www.dropbox.com/s/qxrdxvtqs7d6hfp/stepsize0.1.png?dl=0 https://www.dropbox.com/s/j54gaofor3ktjyt/stepsize0.5.png?dl=0 https://www.dropbox.com/s/i5fdqwldabx0820/stepsize0.05.png?dl=0 https://www.dropbox.com/s/dxf0ihlghy50d8b/stepsize1.png?dl=0 Thanks for your help, Manu. On Mon, Jul 31, 2017 at 8:13 PM, Sebastian Moeller wrote: > Hi, > > I believe you need to set the step size to something bigger: > from "run-flent --help" > -s STEP_SIZE, --step-size STEP_SIZE > Measurement data point step size. > > For a slow link there are simply no data from netperf for a given > "sampling" point and hence you get the intermittent plots. As far as I know > there is unfortunately no way to specify the step size independent for both > directions, so for non-choppy plots in your slow direction you will also > get less time resolution in your fast direction... > > Hope that helps > > > > > On Jul 31, 2017, at 19:36, Emmanuel Blot wrote: > > Hi all, > > I’m a new flent user. > > I’m trying to check my SQM settings on OpenWRT against bufferbloat. > > For some reason, the TCP download and ping graphs for RRUL sessions > give sensible results, whereas the TCP upload is broken into very > small segments (even closer to dots actually), see the attached > sample. > > What am I doing wrong ? > > command line: flent rrul -p all_scaled -l 60 -H host -o output.png > > $ flent --version > Flent v1.0.1. > Running on Python 3.5.2 (default, Oct 11 2016, 04:59:56) [GCC 4.2.1 > Compatible Apple LLVM 8.0.0 (clang-800.0.38)]. > Using matplotlib version 2.0.1 on numpy 1.12.1. > Using PyQt5 version 5.9. > > > Thanks, > Manu. > _______________________________________________ > Flent-users mailing list > Flent-users@flent.org > http://flent.org/mailman/listinfo/flent-users_flent.org > > >