[Kamailio-Users] TCP supervisor process in Kamailio

Pascal Maugeri pascal.maugeri at gmail.com
Thu Jul 9 23:02:59 CEST 2009


On Wed, Jul 8, 2009 at 5:44 PM, Jiri Kuthan <jiri at iptel.org> wrote:

> Pascal Maugeri wrote:
>
>> Thanks for the suggestion Jiri. So far I have been monitoring sr and I
>> know that the TCP async implementation might resolve some problems we're
>> facing with kamailio.
>>
>> But I'm a bit conservative and I want to do several verifications of sr
>> before doing the "switch". So for now we stick to kamailio.
>>
>> Does this TCP supervisor process priority sounds familiar to you for
>> tuning kamailio ?
>>
>
> not really -- I sort of think that studying tuning of something what is
> overdue
> for an update may cost you lot of time and bring less results.
>

Sorry Jiri, but I disagree with you : if I understood well kamailio is still
maintained as a product and will see future evolutions. And I'm pretty sure
I will get some new issues to solve if we switch to sip-router. I need some
time before doing this.

Cheers
-pascal





>
> -jiri
>
>
>
>> Regards,
>> Pascal
>>
>> On Wed, Jul 8, 2009 at 12:25 AM, Jiri Kuthan <jiri at iptel.org <mailto:
>> jiri at iptel.org>> wrote:
>>
>>    if you are concerned about TCP performance (Which may be a justified
>>    concern -- from any possible viewpoint TCP is not easy for SIP),
>>    I suggest you consider the sip-router core. There has been (and I think
>>    still will be) tremendous effort put in it.
>>
>>    -jiri
>>
>>    Pascal Maugeri wrote:
>>
>>        Hi
>>
>>        I recently read the following in order to optimize OpenSER in
>>        handling
>>        TCP connections:
>>
>>        "First, the TCP supervisor process must be given an elevated
>>        priority
>>        level in order to prevent anomalous behavior due to the Linux
>>        scheduler."
>>
>>        First of all, as this is quite old paper (it refers to OpenSER
>> 1.2),
>>        I'm wondering if such a tuning is still needed for Kamailio 1.5
>>        branch
>>        ? If yes, how can I do this ?
>>
>>        Regards,
>>        Pascal
>>
>>        _______________________________________________
>>        Kamailio (OpenSER) - Users mailing list
>>        Users at lists.kamailio.org <mailto:Users at lists.kamailio.org>
>>        http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>        http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>
>>
>>
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