Re: [OpenSBC] poor performance of opensbc

[Joegen B. <joe...@gm...>]

Hi Andrzej,

I guess you have simply seen the limit of the OpenSIPStack real-time parser. 
I won't be surprised that Kamailo will have significantly higher CPS because 
it is doing lazy parsing.  Meaning parse only the header significant to the 
current task.  Since OpenSIPStack is a multi-purpose stack both catering to 
proxy and UA functionality I decided that real-time parsing (parse every 
headers as we get them) would be more desirable.   Perhaps that was a wrong 
choice but it is something we have to work with.   I will be dedicating 
1.1.6 to significantly improve speed of the stack.  Perhaps you have 
suggestions how to improve performance, I am all ears.

Joegen


--------------------------------------------------
From: "Andrzej 'The Undefined'Dopierała" <und...@ar...>
Sent: Monday, March 23, 2009 6:01 PM
To: "Joegen Baclor" <jb...@so...>; 
<ope...@li...>
Subject: Re: [OpenSBC] poor performance of opensbc

> On Thu, Mar 19, 2009 at 06:10:16PM +0800, Joegen Baclor wrote:
>> What you are seeing is the experimental pike mechanism which limits
>> registrations to 5 CPS to augment a potential DoS attack.  This is the
>> reason why CPU is at normal level.  I have recently disabled this in CVS.
>> Can you try CVS head if you still encounter this problem?
> cvs version works with circa 20 registers per second. When i do about 30
> registrations per seconds - retransmisions starts and opensbc has near
> 100% cpu usage. It's real limit of opensbc? "real" platform based on
> kamailio + radius + postgres works with near 500 registers per second ;)
>
>> --------------------------------------------------
>> From: "Andrzej 'The Undefined'Dopierała" <und...@ar...>
>> Sent: Wednesday, March 18, 2009 5:08 PM
>> To: <ope...@li...>
>> Subject: [OpenSBC] poor performance of opensbc
>>
>> > Hi
>> > I have sip platform based on kamailio. It has performance near 500
>> > "REGISTER"s per second.
>> >
>> > I would like to put it behind opensbc to hide internal platform
>> > structure. I use configuration like:
>> >
>> > [Internal-DNS-Mapping]
>> > Internal-DNS-Map Array Size=1
>> > Internal-DNS-Map 1=[sip:sip.my.domain] sip:real-sip-server:5060
>> >
>> > and opensbc is listed on port
>> >
>> > Interface-Address 1=my-real-ip:6060
>> >
>> > It works, but... performance is very poor. When on "kamailio" platform
>> > it's near 500 registers per seconds, when opensbc is on front of it- it
>> > has only 3 registers per second. Systems aren't overloaded - circa 5%
>> > cpu usage.
>> >
>> > -- 
>> > Andrzej 'The Undefined' Dopierała
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>
> -- 
> Andrzej 'The Undefined' Dopierała
> Linux && Unix && Network administrator
> PLD Linux Developer      HomePage: http://andrzej.dopierala.name/
> JID: und...@pi...         e-mail: an...@do...



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