Re: xinit setting priority of X process

[Ed Sweetman <ed.sweetman@xxxxxxxxx>]

The fact that it has existed for a decade doesn't make it correct to use 
now.  /usr/include/linux files are provided by debian for me, and 
whatever your distribution is.  I dont know if your X server process is 
being niced to a value of -1 (or if you use the cvs and not some distro 
version) but either this is a debian problem or a X problem because 
having the server default to a niced value of -1 is not optimal or 
desired behavior anymore.  I wonder if undefining it in host.cfg will 
cause any other adverse effects.  Either way, if your distribution is 
defining PRIO_PROCESS (maybe even vanilla kernels do too) then the only 
reason why some people's X's aren't running -1 is because they renice it 
with some script. default nice level is something that should be handled 
by reading a value from .xinitrc   not hardcoded. a decade ago this was 
fine because everyone used kernels with not so good schedulers.


Mark Vojkovich wrote:
>    That is in the sample implementation.  That line exists in
> the XFree86 code base going back a decade.
>
> http://cvsweb.xfree86.org/cvsweb/xc/programs/xinit/xinit.c?rev=1.1&content-type=text/x-cvsweb-markup
>
>    On my machine PRIO_PROCESS is defined in /usr/include/linux/resource.h
>
>
> 			Mark.
>
> On Fri, 19 Dec 2003, Ed Sweetman wrote:
>
>
> > First of all i'd like to thank the guy who thought it would be really 
> > cool to make X set it's priority as a hardcoded value by default instead 
> > of having it be set from a config file.
> >
> > Line 624 of xinit.c has this.
> > #ifdef PRIO_PROCESS 
> >
> >                 setpriority( PRIO_PROCESS, serverpid, -1 ); 
> >
> > #endif
> >
> >
> > I've been compiling my own X for literally years and i dont remember 
> > seeing PRIO_PROCESS documented anywhere in xf86site.def as a 
> > configurable option nor any other documents on having in a config file 
> > somewhere to override it with another option name. Debian's X server 
> > uses something called Xwrapper.conf but that's a debian thing. So if 
> > this is indeed a configuration option i'm missing to override it then 
> > I'd be very happy if someone would show me where i could find that 
> > configuration option and where to have it.  Otherwise I suggest this 
> > code be removed from X as it's completely annoying, useless, and 
> > obviously not very documented since my previous questions on how come my 
> > server is being niced to -1 all the time was met with no response 
> > whatsoever.


_______________________________________________
XFree86 mailing list
XFree86@xxxxxxxxxxx
http://XFree86.Org/mailman/listinfo/xfree86