Re: Changing Kernel thread priorities

From: Thomas Gleixner
Date: Tue Jun 07 2011 - 11:16:18 EST


On Tue, 7 Jun 2011, Peter Zijlstra wrote:
> On Tue, 2011-06-07 at 13:02 +0200, Remy Bohmer wrote:
> > Well, I 100% agree that it must be under full userspace control to be
> > able to set the priorities. But, the kernel default assumption of
> > starting everything at 50 is wrong as well.
> > Imagine the following situation:
> > * Realtime application is running and has threads active in the range
> > of prios 20 - 90.
> > * Now bring up a network device, it immediately starts spamming the
> > system at prio 50 _before_ you have the chance to set it below 20 by
> > means of chrt.
> > * RT behaviour is gone!
>
> Good point I guess, Thomas should we default to 1 for everything?

No objections.
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