Messages in this thread | | | Date | Sat, 20 Nov 2004 13:59:23 +0100 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.10-rc2-mm2-V0.7.29-0 |
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* 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.
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