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<div class="moz-cite-prefix">The amusing thing about the recurring
load test threads that pop up every now and then is that the most
important tips are already documented on the wiki in one single
page. Beyond that, you probably spend more time load testing than
you do just tossing up another server and using something like
kamailio or opensips to load balance...<br>
<br>
<pre class="moz-signature" cols="72">--
Yossi Neiman
On 11/19/2013 06:48 PM, Antonio Teixeira wrote:
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<div class="moz-cite-prefix">Hello Andre.<br>
<br>
Solving performance problems is always hard , but a few points
to keep in mind :<br>
<br>
To my knowledge FS is pretty much a linux software , it works on
windows by that i doesn't means it performs on windows ( please
correct me if i'm wrong)<br>
The native DB for FS is Postgresql ( this should make you oracle
admin more happy :) ).<br>
<br>
Try this :<br>
Linux Server Realtime Kernel + Last FS Stable + Postgresql (
tune it well).<br>
Take care with ulimit on linux , its needed for the extra punch
of performance<br>
Check if your "performance test" is real if you are pointing to
1500CPS for a two minute call you will have 180k calls before
the first call gets disconnected, if you are also testing RTP
that means 180k * 2 ports needed , The Kernel will start to
complaining and you will run out of ports you will also run out
of FD probably before you run out of ports on a not tuned linux
install.<br>
If the DB is on the same server it will also stall since the FD
will not be present for new connections to the back end.<br>
<br>
In terms of BW you will exceed 230000 kb/s add a few more kb/s
for the DB ( Not a problem here i think)<br>
<br>
Another thing , no sip server ( please include all the nice
names here like B2BUA , etc ) should ever queue anything.<br>
I have never read the code that handles this on FS but the way i
would do it should be something like : can we sustain the load ?
No in that case send 503 else proceed.<br>
This is done in freeswitch by this var<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="https://wiki.freeswitch.org/wiki/XML_Switch_Configuration#max-sessions">https://wiki.freeswitch.org/wiki/XML_Switch_Configuration#max-sessions</a><br>
<br>
A more general approach:<br>
In SIp Servers you will generally ( if not running cpu intensive
tasks, trancoding , tone detection , etc ), consume all the ram
, Network IO ,than the cpu.<br>
For the guys that plan something big you should take a look at
this :<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://www.solarflare.com/High-Frequency-Trading">http://www.solarflare.com/High-Frequency-Trading</a><br>
Not by The NIC itself but because of this :<br>
<a moz-do-not-send="true" class="moz-txt-link-freetext"
href="http://www.openonload.org">http://www.openonload.org</a><br>
<br>
Without more data i don't think we can help , above all
performance testing is a dark art you just need to keep on
trying different things and above all have some type of monitor
tool to understand what exactly is holding you up , maybe its no
FS...<br>
<br>
Also 1500CPS is something seen in carrier operations generally
with a named SBC in front , keep in mind that FS is a great
software but it doesn't hold against SBC's that use special
processors like ASIC to perform transcoding , sip parsing , tone
detection ,etc etc<br>
<br>
<br>
Disclaimer : post written deep into the night...<br>
<br>
On 20/11/13 00:09, Andre wrote:<br>
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<p class="MsoNormal">Hi, I am testing out my FreeSWITCH
1.2.14 64 bit windows 8.1 on my Alienware Laptop with a
very fast SSD and I7 processor with 8 GB DDR3 Ram.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have been using a pjsip test tool to
test FreeSWITCH to see how it performs. Tell me if I’m wrong
here, I believe if I sent “too many” calls to FreeSWITCH
that it queues up the calls and sooner or later uses all
the memory on my PC then just stops working. I do have the
CPS sent to 1500 for testing but I never hit that high, I
hit about 200 CPS.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The CDRs that save to my database show it
takes about 8 seconds from start time to end time. It does
start out only taking milliseconds then it progresses to the
8 second mark. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The calls are just going to FreeSWITCH
then I’m sending back a 503.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have every mod turned off, logging set
to 0, Core db going to a SQL Server and I even set
FreeSWITCH to real time.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anyone give me advise on what I can
do to get better performance? I’ve also tested it out on my
real server but in about 3 minutes of 50 cps FreeSWITCH uses
up 3gb of memory and stops responding.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m at a loss here on what else to do.<o:p></o:p></p>
<p class="MsoNormal">Andre<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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