Optimizing Software of Memory Management on ARM
Jingwei Dong, Zhuo Wang, Rui Wang, Shi Xianwei · 2012
The performance of embedded systems is determined by many factors. The method of memory management is an important one of them. In this paper, three software optimization methods of memory management are discussed based on ARM embedded system and embedded Linux. Setting memory access permissions in system initialization improves the reliability of the embedded system. Using FCSE (Fast Context Switch Extension) improves the usage efficiency of memory. Allocating memory space by integer times of 4 KB makes more processes concurrency possible on embedded system which hardware configuration is insufficient. Experiment shows that the optimizing memory management methods studied in this paper improved the operating efficiency of ARM and embedded Linux system.