[asterisk-users] Confbridge for 80 devices

[Stoyan Marinov]

Hi,

Dahdi timing is for dahdi hardware. See here: https://wiki.asterisk.org/wiki/display/AST/Timing+Interfaces <https://wiki.asterisk.org/wiki/display/AST/Timing+Interfaces>

You could check your asterisk modules using "module show" on asterisk cli.

Sounds like you might be doing transcoding, which might be the cause of your problems. Are you using the same codec for all calls? If so - which one? I'm not 100% sure about this, but asterisk might be using slin internally for the conf bridge, which means it might have to do some expensive transcoding on the receiving and then again on the sending end. You could check your transcoding times with "core show translation recalc".

Regards,
Stoyan

> On 21 Oct 2022, at 12:17 AM, Jerry Geis <jerry.geis at gmail.com> wrote:
> 
> 
> What is the trick to get "preload => res_timing_dahdi" working ?
> 
> I have tried to add to both a CentOS 7 (metal box) and Ubuntu 20.04 (VMware guest) system
> restart asterisk and neither print anything about res_timing_dahdi in the /var/log/asterisk/messages file.
> 
> Both are having issues with around 80 Confbridge items. 
> 
> timing test on BOTH return the same...
> Attempting to test a timer with 50 ticks per second.
> Using the 'timerfd' timing module for this test.
> It has been 1000 milliseconds, and we got 50 timer ticks
> 
> I dont think either system is "correctly" using the dahdi timer.
> 
> Thoughts ?
> 
> jerry
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