The most important motivation for using a parallel system is the reduction of the execution time of computation-thorough application programs. To facilitate the development and analysis of parallel programs the performance measures are often used. Performance measures can be based not only on theoretical cost models but also on measured execution times for a specific parallel system. In this paper, they selected different computer architectures and iterations to compare the performance results of native thread and hybrid native thread with thread class and concurrent API as well to compare the performance results of NativePthread and Hybrid NativePthread with thread class and concurrent API. The overall performance improvements are five times faster than Thread class and concurrent API.