Re: periods and deadlines in SCHED_DEADLINE

From: Peter Zijlstra
Date: Tue Aug 03 2010 - 05:46:33 EST


On Sun, 2010-07-11 at 08:42 +0200, Bjoern Brandenburg wrote:
> If you want to do G-EDF with limited and different budgets on each CPU
> (e.g., G-EDF tasks may only run for 100 out of 1000 ms on CPU 0, but
> for 400 out of 1000 ms on CPU 1), then you are entering the domain of
> restricted-supply scheduling, which is significantly more complicated
> to analyze (see [1,2]).

Would making the thing homogenious by assuming the worst for all cpus
make the analysis easier? That is, in the above example, only allow the
G-EDF scheduler to run for 100 out of 1000 ms on both cpus.


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