[OpenSIPS-Users] OpenSIPS performance.

[Liviu Chircu]

Hi, Agalya!

A successful stress test should highlight a bottleneck that we are no 
longer able to easily fix. Common bottlenecks with any network server 
application will always include:

- CPU

- I/O (disk / network)

Most often, disk writes are to blame, either through stderr or syslog. 
You will definitely want a very low logging level (log_level = 1) when 
doing thousands of CPS, as even a single log line per request can lower 
the overall throughput.

Choosing the right compile flags can also help. You should print the 
output of "opensips -V", maybe improvements can be made.

To conclude, please try to understand the bottleneck first (by using 
"top", "netstat", "vmstat", etc.), then we can start working on it!

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 24.10.2016 17:38, Ramachandran, Agalya (Contractor) wrote:
>
> Hi Bogdan,
>
> Am using opensips 2.2.2 version and using opensips as only proxy.
>
> In the default script, in route[relay], I have called setdsturi(); No 
> other changes with the default script.
>
> Earlier, I have used only the default value of S_MEMORY and P_MEMORY 
> in the /etc/default/opensips.
>
> With this default values, for the end to end established call with 
> pause of (24 to 45 sec), I could reach only 150cps.
>
> When I tried to increase *S_MEMORY and P_MEMORY to 1024 and 
> 64*respectively, and having opensips *children =12*, I could achieve 
> 800 cps.
>
> I have also re-tuned OpenSIPS log file, by adding 
> “-/var/log/opensips.log”.
>
> When I see opensips performance with default script I see you are 
> achieving 9000cps.
>
> What are the places I need to take a look to tune up still, to get 
> more performance. Your expertise would help me a lot.
>
> Am running on VM, with 8 core CPU, 16GB RAM  and processor is Intel 
> Xeon E312xx(Sandy Bridge).
>
> Regards,
> Agalya
>
>
>
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