[Freeswitch-users] Realtime kernels - CONFIG_PREEMPT_RT

[Anthony Minessale]

We do use realtime priorities on the scheduler, however, so some threads
can be elevated to the least possible ignore time from the kernel.


On Mon, May 8, 2017 at 2:53 PM, Piotr Gregor <piotrek.gregor at gmail.com>
wrote:

> Hi Karl,
>
> RT kernels are not about speed, but about guaranteed biggest latency, i.e.
> bounded latency in the kernel.
> That highest latency gets significantly improved if RT is set up correctly
> (which is not so straightforward).
> In case of VoIP the most latency in playing audio stream comes from
> network congestion, dropouts, etc.,
> therefore it is external to the kernel and most likely there is not that
> many degrees of freedom in this space
> which real time system could improve.
>
> Piotr
>
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