Messages in this thread | | | From | Lucas De Marchi <> | Date | Tue, 7 Jun 2011 11:57:24 -0300 | Subject | Re: Changing Kernel thread priorities |
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On Tue, Jun 7, 2011 at 11:14, Peter Zijlstra <peterz@infradead.org> 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!
Why is the application using priorities in the range 20-90 if it's well known that we default RT kernel threads to 50?
IMO it's a mistake in the application.
Lucas De Marchi
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