Re: [Jack-Devel] Trying to understand jackd's threads

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DateFri, 15 Feb 2013 14:40:05 -0500
From Paul Davis <[hidden] at linuxaudiosystems dot com>
ToaCOSwt <[hidden] at orange dot fr>
Cc[hidden] at lists dot jackaudio dot org
In-Reply-ToaCOSwt Re: [Jack-Devel] Trying to understand jackd's threads
Follow-UpJoakim Hernberg Re: [Jack-Devel] Trying to understand jackd's threads 
On Fri, Feb 15, 2013 at 12:59 PM, aCOSwt <[hidden]> wrote:

>
> Now that the irqs are threaded SCHED_FIFO, aren't we in the situation where
> SCHED_RR would sound more appropriate ?
>

not in my opinion. jack2 did this for a while.

it is helpful to think of jack (sometimes) not as an audio-related tool but
as

  "A cooperative user-space realtime scheduling system"

it is not interested in sharing cores with any/all SCHED_RR tasks, but
instead with taking very "tight" control over tasks that are a part of its
"scheduling domain". SCHED_FIFO is more appropriate for this purpose, in my
opinion.
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