Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by default; Desktop/audio RT developers, read this!

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To: Lennart Poettering <mzynq@...>
Cc: <linux-audio-dev@...>
Date: Monday, June 22, 2009 - 7:51 pm

On Mon, 2009-06-22 at 20:24 +0200, Lennart Poettering wrote:

Maybe I did not frame the question correctly: if the system has been
configured on purpose by the administrator to grant !SCHED_OTHER by
using RLIMIT_RTPRIO, why does rtkit have to mess with processes that it
did not grant privileges to?

> Even if some folks seem to believe it, I am not replacing anything

I understand that as well. If I may disagree, the long term implication
of rtkit is not just helping a few desktopish cases. It may be why it
was written. But if successful, it will be the only way a distribution
will grant !SCHED_OTHER out of the box, so it will affect anything that
wants to run !SCHED_OTHER out of the box in that distribution (say,
Fedora), including, for example, jack & friends. Thus my concerns and
questions.

(yes, I understand RLIMIT_RTPRIO will still be there, the system will
just not be configured out of the box to grant any access through that
mechanism).

> Really, I am doing my best to ease adoptions for those interested.

Thanks...
Sorry but that is not what I understood from your answer. Fons asked:

> * Question: is the 'demoting' of RT-threads applied only to RT

Note the part about "including those created by processes running as
root". Your answer:

> It can do both. resetting all is the default.

To my eyes "resetting all" would mean to _include_ processes running as
root, thus my remark.

-- Fernando

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Messages in current thread:
[LAD] [ANNOUNCE] Safe real-time on the desktop by default; D..., Lennart Poettering, (Fri Jun 19, 6:13 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 7:42 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 3:56 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 1:32 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:58 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 3:50 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Sun Jun 21, 11:40 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:10 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:47 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Jörn Nettingsmeier, (Mon Jun 22, 9:36 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 9:43 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 6:18 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Sun Jun 21, 11:06 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:01 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 3:58 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 1:14 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 3:25 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 5:46 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:06 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 3:27 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Sun Jun 21, 11:49 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Krzysztof Foltman, (Tue Jun 23, 11:19 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Dennis Schulmeister, (Tue Jun 23, 7:31 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 4:09 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Sun Jun 21, 10:15 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 1:38 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 6:15 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 6:24 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 7:51 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 8:04 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 9:18 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 11:33 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 11:53 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 12:33 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Krzysztof Foltman, (Mon Jun 22, 4:14 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Krzysztof Foltman, (Mon Jun 22, 4:58 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 6:05 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 3:21 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 3:34 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 4:26 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Sun Jun 21, 11:41 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 12:21 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Jörn Nettingsmeier, (Mon Jun 22, 9:19 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 9:37 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 10:50 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Mon Jun 22, 10:07 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Dennis Schulmeister, (Mon Jun 22, 11:38 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Tue Jun 23, 12:00 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Dennis Schulmeister, (Tue Jun 23, 12:09 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Dennis Schulmeister, (Tue Jun 23, 1:49 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 1:08 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 10:05 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Jörn Nettingsmeier, (Mon Jun 22, 9:47 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 10:02 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Jörn Nettingsmeier, (Tue Jun 23, 8:44 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 4:54 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 6:49 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 8:14 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Fri Jun 26, 5:53 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Tue Jun 23, 10:19 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 3:21 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 3:23 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 4:25 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Stephen Sinclair, (Wed Jun 24, 11:38 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Wed Jun 24, 12:24 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Fernando Lopez-Lezcano, (Fri Jun 26, 5:32 am)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Sun Jun 21, 11:53 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Mon Jun 22, 3:16 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Fri Jun 19, 8:04 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Sun Jun 21, 9:09 pm)
Re: [LAD] [ANNOUNCE] Safe real-time on the desktop by defaul..., Lennart Poettering, (Fri Jun 19, 6:46 pm)