[gentoo-user] Re: pf-sources Kernel

[Nikos Chantziaras <realnc@arcor.de>]

On 05/22/2011 05:36 PM, James wrote:
> Howdy!
>
> Anyone running pf-sources?
>
> AMD64?
>
> Arm (Pandaboard{})?
>
> Your insights and experiences are most welcome,
> including your opinion of BFS...
>
> [1] http://ck.kolivas.org/patches/bfs/bfs-faq.txt

I don't run pf-sources, but I run a BFS-patched gentoo-sources.  One of 
the reasons I use it is because of its support for the SCHED_ISO process 
priority, which is important for audio applications.  Otherwise, I would 
need to use a realtime-linux kernel, which is total overkill and I don't 
want to reboot into a different kernel just for an audio session.  Also, 
SCHED_ISO works for normal users so I don't have to launch stuff like 
jack-audio as root.

Another reason I use it is because my system becomes a bit more 
responsive with BFS (meaning the GUI - I use KDE).  You can do that with 
the mainline scheduler too, but it's not automatic; you have to set up 
the cgroups feature (creating different cgroups for different 
applications), and I never bothered.  It's up to the distro to provide a 
cgroups setup, but I don't know whether Gentoo or any other distro 
actually does it.  My guess is not.  Without a setup, users have to 
launch their applications from the terminal, which is kind of stupid. 
Launching them from the GUI will place them all in the same cgroup.

So BFS it is for me :-)