What do you have as a UAS? The UDP receive buffer increase that Ovidiu suggested would be necessary if you see traffic piling up/getting dropped, e.g. look at `netstat -s | grep "receive buffer errors"` or watch for 2nd column Recv-Q of netstat.
Cheers, On Fri, Mar 22, 2024 at 1:31 PM Ovidiu Sas via sr-users < [email protected]> wrote: > I assume that you are using udp. > Please increase the length of the udp queue: > > https://medium.com/@CameronSparr/increase-os-udp-buffers-to-improve-performance-51d167bb1360 > > Regards. > Ovidiu Sas > > > On Fri, Mar 22, 2024 at 12:56 Sergio Charrua via sr-users < > [email protected]> wrote: > >> Hi all! >> >> I have been doing some performance tests with Kamailio 5.7.4 and SIPp. >> The infrastructure is as follows:3 VMs running on VMWare ESXi running: >> UAC on 10.20.0.1 with SIPP-> Kamailio on 10.20.0.5 -> UAS on 10.20.0.3 >> >> The Kamailio VM has 6 dedicated vCPU of type Intel(R) Xeon(R) Silver 4216 >> CPU @ 2.10GHz and, 2 NICs and 4Gb RAM and MariaDB 10.6 as DB Backend., all >> running on a HP G380 host with a gazillion CPUs and a googol disk space! >> >> I currently have 3 scripts: >> - script #1 stateful with RTJson and simulating requests to routing >> engine and accounting >> - script #2 stateful but with just a simple routing to UAS, no rules, no >> DB, >> - script #3 stateless with a forward to UAS >> >> With script #3 I can go up to 2000CPS without issues with CPU at 37%! >> Above that value, I get retransmissions everywhere. >> On both scripts #1 and #2, the limit is 330CPS max after which I get a >> lot of retransmissions, while CPU/Core usage on Kamailio server stays below >> 10%. >> So I do not expect this to be a CPU issue. >> >> I could not understand why such (low) results, so I followed this article >> found at >> https://www.kamailio.org/docs/openser-performance-tests/#tm-tests-c >> <https://www.kamailio.org/docs/openser-performance-tests/#tm-tests-c> >> and created exact same scenarios, with kamailio script and SIPP templates >> available on the article, hoping for better results. >> But I get the same results: between 300 and 330CPS which is far, very far >> from the 7000CPS found in the article! >> >> I understand that I'm using VMs and probably the tests made for the >> article, which is pretty old already, were made on physical servers. Still, >> I would not expect 95% of lower performance! >> >> Any clue what could be the issue? I suspect NICs, but.... >> Any tips anyone could share? >> >> Thanks in advance! >> >> *Sérgio Charrua* >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions >> To unsubscribe send an email to [email protected] >> Important: keep the mailing list in the recipients, do not reply only to >> the sender! >> Edit mailing list options or unsubscribe: >> > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > To unsubscribe send an email to [email protected] > Important: keep the mailing list in the recipients, do not reply only to > the sender! > Edit mailing list options or unsubscribe: >
__________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to [email protected] Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe:
