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Old 05-04-2011, 08:37 PM   #1
Registered: Apr 2007
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Distribution: Kubuntu, Ubuntu, CentOS
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Post Is PREEMPT_RT already implemented?

Hello everyone,

I am a bit behind on linux kernel scheduler updates, then I have read about this one on

If this is already implemented, on what kernel version did it started? Thanks.

Old 05-05-2011, 02:46 PM   #2
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Without any patch, the kernel support something, like following.
The configuration item CONFIG_TREE_PREEMPT_RCU:

* prompt: Preemptable tree-based hierarchical RCU
* type: tristate
* depends on: CONFIG_PREEMPT
* defined in init/Kconfig
* found in Linux Kernels: from 2.6.32 release still available on 2.6.38 release


interrupt handlers, kernel, preemption, preempt_rt

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