[OpenSIPS-Users] Strange performance problem

[Alejandro Ríos Peña]

Hi guys,

You were right! shutting down syslog logging resulted in clean successful
tests.  I still don't have the fix for this, but will post it here when I
do.

Thanks!

Alejandro.

2011/9/14 Vlad Paiu <vladpaiu at opensips.org>

> **
> Hello,
>
> Please check, as Brett said, if your logging is not the issue - if syslog
> is in async mode.
> Further more, if logging turns out not to be the problem, you could use the
> time threshold parameters from the core for DNS and overall message
> processing [1], or the time threshold in the DB_MYSQL module, for queries
> [2], to check if DNS or MySQL is causing this performance issues.
>
> [1] http://www.opensips.org/Resources/DocsCoreFcn#toc49
> [2] http://www.opensips.org/html/docs/modules/devel/db_mysql.html#id249058
>
> Regards,
>
> Vlad Paiu
> OpenSIPS Developer
>
>
> On 09/14/2011 03:55 AM, Brett Nemeroff wrote:
>
> 2011/9/13 Alejandro Ríos <alerios at debian.org>
>
>> Hi all,
>>
>> I'm running a sipp load test to an opensips instance on a 16 core, 8GB ram
>> blade server.  It's only 100 simultaneous calls, at 10 calls per second, and
>> I'm getting lots of retransmissions from the sipp UAC.
>>
>
> I'll give you the same advice I gave someone else just a sec ago. Check
> your syslog config and see if you are set up for async writes. Turn logging
> off completely on opensips and see if that changes anything. I've seen bad
> logging configs bring perfectly capable systems to it's knees.
> -Brett
>
>
>
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