Re: [LAD] [Jack-Devel] jack2's dbus name

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From: <torbenh@...>
To: <linux-audio-dev@...>
Date: Friday, June 19, 2009 - 12:40 pm

On Fri, Jun 19, 2009 at 08:45:12AM +0200, Stéphane Letz wrote:

this discussion seems to go away from the real issue to implementation
details of pa.
however the deeper i read into stuff which is being called, the more
malloc and mutex_lock() i see.

even with jack_cycle_signal we are having a thread, which is running at
the same priority as other jack threads, so it still has a certein
potential to choke the other jack clients.

first of all.... lets assume jack is running with -p64 -n2
(~3ms latency)

i am not sure if lennart is aware that jack often runs with such
latencies. i dont really care for event processing inside the RT loop.
however you cant know how many clients are following in the process
cycle, so you cant know a sane threshold value.

what i am asking for is that events are either passed into your RT loop
via lock-free fifos, or you decouple your soft-RT stuff from jacks RT
stuff, which is not as soft as you think.

at least nobody is creating semaphores in jack_process code.
if you insist on soft-RT behaviour, just decouple and do what you want.

> >

--
torben Hohn
http://galan.sourceforge.net -- The graphical Audio language
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Messages in current thread:
Re: [LAD] jack2's dbus name, Stéphane Letz, (Mon Jun 15, 9:05 am)
Re: [LAD] jack2's dbus name, Lennart Poettering, (Mon Jun 15, 12:59 pm)
Re: [LAD] jack2's dbus name, Stéphane Letz, (Mon Jun 15, 1:38 pm)
Re: [LAD] jack2's dbus name, Lennart Poettering, (Mon Jun 15, 2:37 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 4:21 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Nedko Arnaudov, (Fri Jun 19, 7:08 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Paul Davis, (Thu Jun 18, 5:52 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 6:46 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Paul Davis, (Thu Jun 18, 6:49 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 7:13 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Paul Davis, (Thu Jun 18, 9:41 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 10:34 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Fons Adriaensen, (Thu Jun 18, 11:28 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 11:44 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Stéphane Letz, (Fri Jun 19, 6:45 am)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Fri Jun 19, 1:00 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, , (Fri Jun 19, 12:40 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Fri Jun 19, 1:43 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Stéphane Letz, (Fri Jun 19, 2:03 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Fri Jun 19, 2:13 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Paul Davis, (Thu Jun 18, 11:57 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Fri Jun 19, 12:28 am)
Re: [LAD] [Jack-Devel] jack2's dbus name, Paul Davis, (Fri Jun 19, 2:39 am)
Re: [LAD] [Jack-Devel] jack2's dbus name, Jussi Laako, (Thu Jun 18, 5:12 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 7:00 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Jussi Laako, (Thu Jun 18, 8:28 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Florian Schirmer, (Thu Jun 18, 9:20 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Jussi Laako, (Thu Jun 18, 11:03 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 8:46 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Jussi Laako, (Thu Jun 18, 10:56 pm)
Re: [LAD] [Jack-Devel] jack2's dbus name, Lennart Poettering, (Thu Jun 18, 10:59 pm)
Re: [LAD] jack2's dbus name, Fernando Lopez-Lezcano, (Mon Jun 15, 5:16 pm)
Re: [LAD] jack2's dbus name, Lennart Poettering, (Mon Jun 15, 5:34 pm)
Re: [LAD] jack2's dbus name, Fernando Lopez-Lezcano, (Mon Jun 15, 6:37 pm)
Re: [LAD] jack2's dbus name, Lennart Poettering, (Mon Jun 15, 6:54 pm)
Re: [LAD] jack2's dbus name, alex stone, (Mon Jun 15, 6:36 pm)
Re: [LAD] jack2's dbus name, Jussi Laako, (Tue Jun 16, 6:19 pm)
Re: [LAD] jack2's dbus name, Stéphane Letz, (Mon Jun 15, 3:03 pm)