[Freeswitch-users] mod_conference scalability

[Michael Collins]

how are the listeners connecting?

On Wed, Dec 16, 2009 at 1:49 PM, Brian <brian at proximosystems.com> wrote:

>  Hi,
>
>
>
> I’m new to FreeSWITCH and I’m testing the scalability of mod_conference to
> see if it will scale better that other solutions. My scenario is to have one
> speaker, and many listeners (mute). Since I have only one speaker, I was
> expecting this to scale well because there is no audio mixing required, just
> send each frame of the single speaker to each listener. Unfortunately, my
> testing was disappointing, and it didn’t scale nearly as well as I’d hoped
> (based on what I’ve read on how FreeSWITCH is supposed to be generally very
> scalable).
>
>
>
> Here’s my server setup is this:
>
>
>
> FreeSWITCH 1.0.4, 64 bit CentOS 5.3, on a quad-core Xeon server, 4 Gig of
> RAM. I’ve set file logging to “notice” level. My conference profile is
> configured to suppress several events, hoping that it would improve
> performance.
>
>
>
> Here are a few scenarios I tested, and roughly where I reached the point of
> audio failure on the conferences:
>
>
>
> Scenario 1:
>
> 1 conference, 1 speaker, audio failed at approx 300 listeners (mute)
>
>
>
> Scenario 2:
>
> 4 conferences, 1 speaker per conference, audio failed approx 110 listeners
> per conference (so just over 400 total channels on the system).
>
>
>
> Scenario 3:
>
> 16 conferences, 1 speaker per conference, audio failed at 32 listeners per
> conference (so just over 500 total channels on the system).
>
>
>
>
>
> Looking at the output from “top”, it seems that in all 3 scenarios, the
> audio quality failed when the % CPU for the FreeSWITCH process exceeded
> 300%.
>
>
>
> I was hoping maybe someone else might have done similar testing, or maybe
> has suggestions on how to improve the performance. Or perhaps an alternate
> solution to the one speaker, many listener case?
>
>
>
> Thanks,
>
>
>
> Brian.
>
>
>
> _______________________________________________
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20091216/4afd8965/attachment-0002.html