[Kamailio-Users] kamailio 1.4.3 slow

[Juan Perez]

Dear Daniel, I misssed your reply, thank you a lot, I will start to work on this inmediately.
I will try to capture everything to see whether I am missing something else, in my captures I only filter udp port 5060
regards
jp


----- Original Message ----
From: Daniel-Constantin Mierla <miconda at gmail.com>
To: users at lists.kamailio.org
Sent: Wednesday, September 16, 2009 11:45:18 AM
Subject: Re: [Kamailio-Users] kamailio 1.4.3 slow

Hello,

On 16.09.2009 17:40 Uhr, Henning Westerholt wrote:
> On Mittwoch, 16. September 2009, Juan Perez wrote:
> > I installed kamailio in a pc with dual quad core @ 3.3GHz, 4 GB RAM and see
> > that kamailio is very slow answering to INVITEs from the inbound carriers.
> > The DEBUG is set to 3 and the idle CPU lowers only to 87% or 90 %, which is
> > still decent but anyways the performance is very bad.
> >
> > This is the first time that I see this, I have it installed in other
> > machines with less resources, same OS [CentOS 5.2 64 bits] and it is
> > performing very very good. I know that a high debug level is a enemy but in
> > my case is set to 3 like in the other system, and it is using the same
> > configuration file. What other thing may affect the performance?
> >
> > I have made sure that it is not a network issue because the captures are
> > taken in the same machine and I see multiples INVITEs hitting it and no
> > response at all until more than 2 seconds
> 
> 
> Hi Juan,
> 
> 
> i'd suspect that the server could not resolve DNS requests or has some issues accessing the database. Can you check with tcpdump that DNS resolves are not blocked somehow, and how the database responds?
as hint, using benchmark module is a way to discover which part of the config file is slow:
http://kamailio.org/docs/modules/1.5.x/benchmark.html

Cheers,
Daniel

-- Daniel-Constantin Mierla
* http://www.asipto.com/


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