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<p><tt>Hi, Agalya!</tt></p>
<p><tt>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:</tt></p>
<p><tt>- CPU<br>
</tt></p>
<p><tt>- I/O (disk / network)<br>
</tt></p>
<p><tt>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.</tt></p>
<p><tt>Choosing the right compile flags can also help. You should
print the output of "opensips -V", maybe improvements can be
made.<br>
</tt></p>
<p><tt>To conclude, please try to understand the bottleneck first
(by using "top", "netstat", "vmstat", etc.), then we can start
working on it!</tt></p>
<pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
<div class="moz-cite-prefix">On 24.10.2016 17:38, Ramachandran,
Agalya (Contractor) wrote:<br>
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<p class="MsoNormal"><span style="color:blue">Hi Bogdan, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Am using opensips
2.2.2 version and using opensips as only proxy.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">In the default
script, in route[relay], I have called setdsturi(); No other
changes with the default script.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Earlier, I have
used only the default value of S_MEMORY and P_MEMORY in the
/etc/default/opensips.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">With this default
values, for the end to end established call with pause of
(24 to 45 sec), I could reach only 150cps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">When I tried to
increase </span><b><span style="color:red">S_MEMORY and
P_MEMORY to 1024 and 64</span></b><span style="color:red">
</span><span style="color:blue">respectively, and having
opensips </span><b><span style="color:red">children =12</span></b><span
style="color:blue">, I could achieve 800 cps.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">I have also
re-tuned OpenSIPS log file, by adding
“-/var/log/opensips.log”.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">When I see
opensips performance with default script I see you are
achieving 9000cps.
</span><span style="color:red"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue">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.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Am running on VM,
with 8 core CPU, 16GB RAM and processor is Intel Xeon
E312xx(Sandy Bridge).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:blue"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:blue">Regards,<br>
Agalya<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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