[srslte-users] Throughput tests
Kewin Rausch
krausch at fbk.eu
Tue Feb 13 18:34:49 UTC 2018
Whoops, I was stuck with the Iperf(2) question.
On Feb 13, 2018 7:30 PM, "Cedric Roux" <Cedric.Roux at eurecom.fr> wrote:
> iperf3 is different :)
>
> On 02/13/2018 07:06 PM, Kewin Rausch wrote:
> > Ehm.... actually for an UDP server you should run:
> >
> > iperf -s -u
> >
> > Otherwise iperf runs a TCP server (the log on the console should report
> it).
> >
> > Usually looking at the help (--help) or at online tutorials is a good
> start; try googling it.
> >
> > Kewin
> >
> > On Feb 13, 2018 6:52 PM, <dmakris at iit.demokritos.gr <mailto:dmakris at iit.
> demokritos.gr>> wrote:
> >
> > Hi Ismael,
> >
> > I run the iperf client from EPC, but the Smartphone does not
> answers, as a
> > server.
> > On the other hand, i use iperf3 server in EPC (iperf3 -s), and on the
> > smarthpone the iperf3 client(-c 192.168.3.1 -t 1000 -u -R). The R,
> means
> > the reverse mode. So the UE, downloads UDP packets. I set the
> bandwidth 75
> > Mbps (-b 75m), but the DL throughput is only 11 Mbps.
> >
> > Best regards,
> > Dimitris
> >
> > > run the following command from EPC (amarisoft) server:
> > >
> > > iperf -c 192.168.3.2 -b75M -t100 -u
> > >
> > > to run a DL iperf and to run UL iperf:
> > >
> > > iperf -c 192.168.3.1 -b30M -t100 -u
> > >
> > >
> > > On Tue, 13 Feb 2018 at 10:44 <dmakris at iit.demokritos.gr <mailto:
> dmakris at iit.demokritos.gr>> wrote:
> > >
> > >> Hi Ismael,
> > >>
> > >> i use in the smartphone (client) the following:
> > >> -c 192.168.3.1 -t 1000 -u -R.
> > >> In the EPC (Amarisoft) runs the iperf -s (server).
> > >>
> > >> Best Regards,
> > >> Dimitris
> > >>
> > >> > what command do you use for UDP iperf?
> > >> >
> > >> > On Tue, 13 Feb 2018 at 10:34 <dmakris at iit.demokritos.gr
> <mailto:dmakris at iit.demokritos.gr>> wrote:
> > >> >
> > >> >> Hi Ismael,
> > >> >>
> > >> >> thank you for your immediate response.
> > >> >> I tune the Tx and Rx gains to 88 and 45 dB respectively, so
> the snr
> > >> from
> > >> >> trace monitoring is about 27 dB.
> > >> >> I run the tests using speedtest from Okla, and i measure the DL
> > >> between
> > >> >> 12
> > >> >> and 20 Mbps. The UL is about 25 Mbps.
> > >> >> Then i run an iperf UDP test. When i try to download, the DL
> is about
> > >> 10
> > >> >> Mbps and the snr goes to -nan.
> > >> >>
> > >> >> Best Regards,
> > >> >> Dimitris
> > >> >>
> > >> >>
> > >> >> > Are you using TCP or UDP? TCP performance with srsENB is not
> quite
> > >> >> good
> > >> >> at
> > >> >> > the moment. Try UDP first.
> > >> >> >
> > >> >> > Also tune the TX and RX gains so that you have high SNR
> (~27-30 dB)
> > >> in
> > >> >> > both
> > >> >> > directions.
> > >> >> >
> > >> >> > On Tue, 13 Feb 2018 at 10:17 <dmakris at iit.demokritos.gr
> <mailto:dmakris at iit.demokritos.gr>> wrote:
> > >> >> >
> > >> >> >> Hi srsLTE community,
> > >> >> >>
> > >> >> >> in our testbed, we use the latest srsLTE software (Latest
> commit
> > >> >> >> 2734ce6)
> > >> >> >> running on an Intel Core i7-7700K CPU (8x4.2 GHz), with 16
> Gbyte
> > >> RAM.
> > >> >> >> The
> > >> >> >> OS is Ubuntu 16.04. For the RF front end we use the Ettus
> B210 in
> > >> >> SISO
> > >> >> >> Mode.
> > >> >> >> For 1.4, 3, 5 and 10 MHz Bandwidth, we achieve the expected
> > >> >> throughput.
> > >> >> >> But for 15 and 20 MHz, the DL varies between 12 and 20
> Mbps. The
> > >> UL
> > >> >> is
> > >> >> >> about 25 Mbps.
> > >> >> >>
> > >> >> >> Should we change another parameter from drb, rr, or sib
> > >> >> configuration
> > >> >> >> files?
> > >> >> >> Thank you for your help.
> > >> >> >>
> > >> >> >> Thank you in advance,
> > >> >> >> Dimitris
> > >> >> >>
> > >> >> >> _______________________________________________
> > >> >> >> srslte-users mailing list
> > >> >> >> srslte-users at lists.softwareradiosystems.com <mailto:
> srslte-users at lists.softwareradiosystems.com>
> > >> >> >> http://www.softwareradiosystems.com/
> mailman/listinfo/srslte-users <http://www.softwareradiosystems.com/
> mailman/listinfo/srslte-users>
> > >> >> >>
> > >> >> >
> > >> >>
> > >> >>
> > >> >>
> > >> >
> > >>
> > >>
> > >>
> > >
> >
> >
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