[Freeswitch-users] Freeswitch Performance

Wed Nov 20 23:38:52 MSK 2013

I tested again and when I use 25 cps for 2 hours everything worked fine.
When I sent 50 cps I noticed FreeSWITCH worked for about 5 minutes then I
saw the memory jump from 122 mb to to 1.6 gb in seconds. I think FreeSWITCH
crashed but the logs show nothing other than FreeSWITCH was receiving the
new messages but no bridge or cancel actions were taking place.

How do I tell what happened that made freeswitch just stop working? The GUI
didn't show anything like a throw exception and when I type version or sofia
status in the FreeSWITCH gui it doesn't respond.

Andre

From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Anthony
Minessale
Sent: Wednesday, November 20, 2013 12:33 AM
To: Freeswitch-users
Subject: Re: [Freeswitch-users] Freeswitch Performance

Get HEAD of stable branch or HEAD of master for latest build files.

There is no promise windows can do 500cps the industry standard is 50 and
you'll have probably more luck on linux but there is only on way to fimd
out.

On Nov 19, 2013 11:27 PM, "I put the Who? in Mishehu"
<mishehu at freeswitch.org <mailto:mishehu at freeswitch.org> > wrote:

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...

-- 
Yossi Neiman

On 11/19/2013 06:48 PM, Antonio Teixeira wrote:

Hello Andre.

Solving performance problems is always hard , but a few points to keep in
mind :

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)
The native DB for FS is Postgresql ( this should make you oracle admin more
happy :) ).

Try this :
Linux Server Realtime Kernel + Last FS Stable + Postgresql ( tune it well).
Take care with ulimit on linux , its needed for the extra punch of
performance
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.
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.

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)

Another thing , no sip server ( please include all the nice names here like
B2BUA , etc ) should ever queue anything.
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.
This is done in freeswitch by this var
https://wiki.freeswitch.org/wiki/XML_Switch_Configuration#max-sessions

A more general approach:
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.
For the guys that plan something big you should take a look at this :
http://www.solarflare.com/High-Frequency-Trading
Not by The NIC itself but because of this :
http://www.openonload.org

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...

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

Disclaimer : post written deep into the night...

On 20/11/13 00:09, Andre wrote:

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.

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.

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.  

The calls are just going to FreeSWITCH then I'm sending back a 503.

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.

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.

I'm at a loss here on what else to do.

Andre

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_________________________________________________________________________
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_________________________________________________________________________
Professional FreeSWITCH Consulting Services:
consulting at freeswitch.org <mailto:consulting at freeswitch.org> 
http://www.freeswitchsolutions.com

Official FreeSWITCH Sites
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