Study and improvements for the real-time performance of Linux kernel

Based on the analysis and research done for Linux operating system kernel, a serial of methods are proposed to improve the real-time in Linux by aiming at the weakness of its real-time performance. The methods include resetting the running time granularity of processes, improving the memory-assignment strategies, and modifying the kernel swap daemon threads and schedule, etc. The experiment results show that the real-time in Linux has been improved greatly after applying these proposed methods to it.