[srslte-users] srsenb&ue running on ubuntu vs centos

[alexander.serkin at gmail.com]

Dear all,

I have strange delay in starting srsue on two different VMs (on different
hosts): ubuntu 18.04.5 LTS and centos 7.9.2009.

Both machines use ZeroMQ driver for enb(127.0.0.1)<>(127.0.0.1)ue
communications. And I use identical ue.conf except IMEI, IMSI and security
keys.

Despite the fact that centos VM has twice more cpus and 8 times more RAM
comparing to ubuntu, the srsue starts there >20 seconds while on ubuntu
machine it takes 2-3 seconds.

The delay occurs between two UE log messages. CentOS:

08:55:21.243251 [NAS ] [I] Read security ctxt from file .ctxt. ksi: 6,
k_asme: b03a9dc5106b1c09e96b14a11ed34afe128d632bea9509b902fadeae01669ce3,
tx_count: 4, rx_count: 3, int_alg: 1, enc_alg: 0

08:55:21.243307 [RRC ] [I] using srand seed of 243303

08:55:40.753622 [MAC ] [I] [    0] DL retx: 0.00 %, perpkt: 0.00, UL retx:
0.00 % perpkt: 0.00

08:55:40.753726 [RLC ] [I] LCID=0, RX throughput: 0.000000 Mbps. TX
throughput: 0.000000 Mbps.

 

Ubuntu:

08:58:46.389003 [NAS ] [I] Read security ctxt from file .ctxt. ksi: 6,
k_asme: 0417d4c4d86b4d272a061cc3ae49f177722fe64870e7a7aec63d47033162be6d,
tx_count: 14, rx_count: b, int_alg: 1, enc_alg: 0

08:58:46.389025 [RRC ] [I] using srand seed of 389022

08:58:47.075794 [MAC ] [I] [    0] DL retx: 0.00 %, perpkt: 0.00, UL retx:
0.00 % perpkt: 0.00

08:58:47.075809 [RLC ] [I] LCID=0, RX throughput: 0.000000 Mbps. TX
throughput: 0.000000 Mbps.

 

I wonder if there probably exist some simple explanation of this ?

 

Cheers,

Alex

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