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SubjectRe: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.29-0

* Florian Schmidt <mista.tapas@gmx.net> wrote:

> here are the different layers of preemption:
>
> - !PREEMPT
> - PREEMPT_VOLUNTARY
> - PREEMPT
> - PREEMPT_RT
>
> each step forward decreases latencies, at the cost of more runtime
> overhead.

yes, and here is how they show up in the config:

( ) No Forced Preemption (Server)
( ) Voluntary Kernel Preemption (Desktop)
( ) Preemptible Kernel (Low-Latency Desktop)
(X) Complete Preemption (Real-Time)

measurements are needed to find out how latencies and runtime overhead
vary between these levels.

Ingo
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