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In general purpose operating systems, such as the mainline Linux, priority inversions occur frequently and are not considered harmful. They are not avoided or limited as in real-time systems. In the current version of the kernel PREEMPT-RT Linux, the protocol used for  priority inversion control is the Priority Inheritance. The objective of this paper is to propose the implementation of an alternative protocol, the Immediate Priority Ceiling, for use in drivers dedicated to real-time applications. This paper explains how the protocol was implemented in the real-time kernel and compare the protocol implemented with the Priority Inheritance implementation, currently used in the real-time kernel

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This paper threats about a work that is inserted in the context of CRUX project, which aims the conception of a complete environment for parallel programming, in development in the Course of Pos-graduation in Computer Science of Santa Catarina Federal University. This paper makes an evaluation of performance of several scheduling algorithms of real time found in the bibliography, about a simulation model that represents as the processing as the communication of this multicomputer. The objective was to quantify the effect of the scheduling algorithm and other factors about some metrics of selected performance, in order to verify the applicability of CRUX in real time systems.