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 < sr-users@lists.kamailio.org> 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 sr-users-le...@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to > the sender! > Edit mailing list options or unsubscribe: >
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