[srslte-users] Throughput tests

[dmakris at iit.demokritos.gr]

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> 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> 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
>> >>
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>> >>
>> >
>>
>>
>>
>