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.