[IDEA] Dynamic priority process

[belese]

Hi,

i've done some tests to set priority in xbmc and other process in function of their utilisations

i've writted an xbmc_upstart_bridge that will send xbmc event to upstart .
events are a bit documented on github

For priority management,
xbmcplevel will be use.

it's a kind of XBMC priority profile which could take value from 0 to 5,
0, xbmc is stopped - 5 xbmc very high priority.

So, now, it doesn't do not many thing, just change the xbmc nice value, depending on it's state.

now, i'll use that defaut value :

xbmcplevel
1 : nice = 3
2 : nice = 0
3&4 : nice = -5
5 : nice = -7

to install :
(you must have git and fakeroot installed)

1. Install upstart_xbmc_bridge
   
   PHP Code:
   

   git clone https://github.com/belese/xbian-package-upstart-xbmc-bridge
cd  xbian-package-upstart-xbmc-bridge
./gen.package.sh
sudo dpkg -i xbian-package-upstart-xbmc-bridge1.0.deb 

2. Copy the upstart job
   Download attached file and copy on /etc/init/
3. Reload Upstart configuration
   sudo initctl reload-configuration
   

and that's all for now. xbmc nice value should be changed automaticaly when xbmc state change

In my TODO list :

• write priority job for download package
  but it's my first upstart script, and i'm not happy with this one, but take me time to understand all syntax.
• maybe change the cpu governor when xbmc is in use
• maybe change ionice when player is started