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

Lennart Poettering mzynq at 0pointer.de
Mon Jun 22 19:41:59 UTC 2009


On Mon, 22.06.09 21:28, Emanuel Rumpf (xbran at web.de) wrote:

> 
> 2009/6/19 Lennart Poettering <mzynq at 0pointer.de>:
> 
> > Also, asking the user to edit /etc/security/limits.conf
> > is certainly not user-friendly. We want to enable RT scheduling for
> > media aplications out-of-the-box.
> >
> Why not just create a small script to handle editing + reloading of
> limits.conf :
> 
> $ allow_realtime_for_group audio yes
> Allowed RT scheduling for group audio
> 
> $ allow_realtime_for_group audio no
> Disallowed RT scheduling for group audio
> 
> Things seem to work well with limits.conf set up.
> No reason to change it AFAIS.

Dude. Seriously.

As pointed out gazillions of times handing our RLIMIT_RTPRIO to
everyone is an invitation to freeze the machine. While that might not
be a problem on an audio workstation, it is a problem for the big
distributions.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4



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