Re: [patch] Real-Time Preemption, plist fixes

From: Daniel Walker
Date: Mon Jun 06 2005 - 10:08:15 EST


On Mon, 6 Jun 2005, Ingo Molnar wrote:
>
> yes, it's supposed to be used for user-space PI too. What do you mean by
> 'completely bounded'. Do you consider the current worst-case O(100)
> property of plists a 'completely bounded' solution?
>
> i dont think fusyn's should be made available to non-RT tasks. If this
> restriction is preserved then fusyn's would become O(max_nr_RT_tasks)
> too.

I think making fusyn RT tasks only would be asking a lot. Fusyn
replaces Futex, and they are both used in pthreads. So non-RT tasks
wouldn't be able to use pthreads in userspace, or a big chunk of pthread
..

Daniel

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