Re: [LAU] jack2 creates 4 threads

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To: Krause, Mathias <Mathias.Krause@...>
Cc: linux-audio-user@lists.linuxaudio.org <linux-audio-user@...>
Date: Tuesday, June 5, 2012 - 11:03 am

On 06/05/2012 10:17 AM, Krause, Mathias wrote:

Only the audio-engine is supposed to have elevated priority. The other
threads are for logging, dbus communication... and similar non-realtime
tasks that are not supposed to interfere with audio performance.

Here jackdbus 1.9.8 - starts 7 threads by default. Only one with
SCHED_FF and the given RT priority, but three others that use SCHED_FF
as well. USTL or ask on jack-devel.

---------------------------------------------------
#ps -ALo pid,class,rtprio,pri,stat,comm | grep jackd
29450 TS - 19 SLsl jackdbus
29450 FF 1 41 SLsl jackdbus
29450 FF 1 41 SLsl jackdbus
29450 FF 1 41 SLsl jackdbus
29450 TS - 19 SLsl jackdbus
29450 TS - 19 SLsl jackdbus
29450 FF 70 110 SLsl jackdbus
---------------------------------------------------

jackd 1.9.9 without dbus spawns 4 threads:
---------------------------------------------------
# ps -ALo pid,class,rtprio,pri,stat,comm | grep jackd
5966 TS - 19 SLsl jackd
5966 TS - 19 SLsl jackd
5966 FF 10 50 SLsl jackd
5966 TS - 19 SLsl jackd
---------------------------------------------------

ciao,
robin
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Messages in current thread:
[LAU] jack2 creates 4 threads, mkrause, (Wed May 30, 2:37 pm)
[LAU] jack2 creates 4 threads, Krause, Mathias, (Tue Jun 5, 8:18 am)
Re: [LAU] jack2 creates 4 threads, Robin Gareus, (Tue Jun 5, 11:03 am)